New build...6 x 47 or 6. CM ?
- Thread starter SOLO LOBO
- Start date
Re: New build...6 x 47 or 6. CM ?
Either way you go, you're stuck with only one supplier of brass for either cartridge and Lapua makes better brass.
Either way you go, you're stuck with only one supplier of brass for either cartridge and Lapua makes better brass.
Re: New build...6 x 47 or 6. CM ?
A 6mm CM will have to be fire-formed from .243, while the 6x47 can be necked down from 6.5x47 more easily. I'd go with the 6x47 simply because I'd rather neck down than fire-form, but you know .243 will be around for donor brass forever...
A 6mm CM will have to be fire-formed from .243, while the 6x47 can be necked down from 6.5x47 more easily. I'd go with the 6x47 simply because I'd rather neck down than fire-form, but you know .243 will be around for donor brass forever...
Re: New build...6 x 47 or 6. CM ?
Give a 6XC a look if you don't want to fool around with fire forming, necking down etc.
Give a 6XC a look if you don't want to fool around with fire forming, necking down etc.
Re: New build...6 x 47 or 6. CM ?
I am a 6mm fan and my 6x47 get the most range time. It will shoot as well as anything in my safe out to 600 yards. Any longer than that the 260 gets the job done.
I am a 6mm fan and my 6x47 get the most range time. It will shoot as well as anything in my safe out to 600 yards. Any longer than that the 260 gets the job done.
Re: New build...6 x 47 or 6. CM ?
Why are you 6mm choices those two? there are better options out there.
Why are you 6mm choices those two? there are better options out there.
Re: New build...6 x 47 or 6. CM ?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Mike</div><div class="ubbcode-body">Why are you 6mm choices those two? there are better options out there. </div></div>
What are the better options?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Mike</div><div class="ubbcode-body">Why are you 6mm choices those two? there are better options out there. </div></div>
What are the better options?
Re: New build...6 x 47 or 6. CM ?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Mike</div><div class="ubbcode-body">Why are you 6mm choices those two? there are better options out there. </div></div>
Aww shit..... I might have to sell my laser beamin 6x47 now that theres something better out there!
(im jk'in roscoe, I would never sell that hammer you built me)
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Mike</div><div class="ubbcode-body">Why are you 6mm choices those two? there are better options out there. </div></div>
Aww shit..... I might have to sell my laser beamin 6x47 now that theres something better out there!
(im jk'in roscoe, I would never sell that hammer you built me)
Re: New build...6 x 47 or 6. CM ?
243 is king gents.
6.5 mil to 1K with 115s, and Lapua Brass.
Plus, no fire-forming or neck sizing.
Your response?
243 is king gents.
6.5 mil to 1K with 115s, and Lapua Brass.
Plus, no fire-forming or neck sizing.
Your response?
Re: New build...6 x 47 or 6. CM ?
I have never owned a .243 in a match set up. Only in hunting rig.
W/ 20" Bbl. So, never got the full experience of the round.
I have a .260 and a 308 And I wanted somthing new,
fast, flat shoothing......So, I pick the 6 x 47L & 6 CM
That's just the ones I have seen out their. I'm open to input, that's why
I posted this thread.
I will take all the help I can get.
I have never owned a .243 in a match set up. Only in hunting rig.
W/ 20" Bbl. So, never got the full experience of the round.
I have a .260 and a 308 And I wanted somthing new,
fast, flat shoothing......So, I pick the 6 x 47L & 6 CM
That's just the ones I have seen out their. I'm open to input, that's why
I posted this thread.
I will take all the help I can get.
Re: New build...6 x 47 or 6. CM ?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SNIPER-2</div><div class="ubbcode-body">I have never owned a .243 in a match set up. Only in hunting rig.
W/ 20" Bbl. So, never got the full experience of the round.
I have a .260 and a 308 And I wanted somthing new,
fast, flat shoothing......So, I pick the 6 x 47L & 6 CM
That's just the ones I have seen out their. I'm open to input, that's why
I posted this thread.
I will take all the help I can get. </div></div>
The 243 is a viable hunting round that has been used for a long time. Components, specifically brass, is readily available. With heavy bullets in a match chambering it has few peers. You want quality brass? Lapua is there with quality brass. You want to shoot on a budget? Winchester brass is great. You can get the 105's to 3200 easy.
The 6 Creedmore shouldn't even be in the mix as it was designed for a gas gun and will never keep up in a bolt rifle.
The 6x47 is somewhat capable but at a cost. You're already pushing higher pressures to achieve the same velocity, if you can get the same velocity (which I doubt). You are VERY limited on brass and what you do get you have to neck size it just to get the brass you need. You need to use small primers, which may or may not be more difficult to get and I believe brass is more expensive. So there's no justification for that round over the 243.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SNIPER-2</div><div class="ubbcode-body">I have never owned a .243 in a match set up. Only in hunting rig.
W/ 20" Bbl. So, never got the full experience of the round.
I have a .260 and a 308 And I wanted somthing new,
fast, flat shoothing......So, I pick the 6 x 47L & 6 CM
That's just the ones I have seen out their. I'm open to input, that's why
I posted this thread.
I will take all the help I can get. </div></div>
The 243 is a viable hunting round that has been used for a long time. Components, specifically brass, is readily available. With heavy bullets in a match chambering it has few peers. You want quality brass? Lapua is there with quality brass. You want to shoot on a budget? Winchester brass is great. You can get the 105's to 3200 easy.
The 6 Creedmore shouldn't even be in the mix as it was designed for a gas gun and will never keep up in a bolt rifle.
The 6x47 is somewhat capable but at a cost. You're already pushing higher pressures to achieve the same velocity, if you can get the same velocity (which I doubt). You are VERY limited on brass and what you do get you have to neck size it just to get the brass you need. You need to use small primers, which may or may not be more difficult to get and I believe brass is more expensive. So there's no justification for that round over the 243.
Re: New build...6 x 47 or 6. CM ?
If you are mag constrainted to 2.800" then the 6 CM or 6X47L become a more reasonable choice.
Running a DBM that allows 2.860" or longer OAL, then the 243 is going to be hard to beat both in cost & performance.
Lapua 243 brass is cheaper then 6.5X47 Lapua by 10-12 cents/case. Lapua brass is going to hold up better then Hornady, 6.5 CM brass is in the 70 cents/case range.
If you want to go "cheap" on brass, Win 243 Win can be had for 43ish cent/case to your door, about 55% of the cost of Lapua 243.
There is no replacement for displacement, loaded to same pressures the 243 is going to outperform the smaller case capacity of the 6 CM or 6X47L. However, you have to run a longer OAL with the 243 to see the advantages when using the heavier, higher BC match bullets. Rem 700 factory mag box you are limited to 2.810" or so, DPMS AR mag is same 2.810" and in those situations the CM or X47 then gives up little or nothing to a 243 when using the heavier, higher BC bullets.
What action and mag system are you planning on running? If you are limited to 2.810" for OAL, then the 6 CM or 6X47L would be good choice. Ability to run an OAL of 2.860" or longer, then the 243 set up for the heavy match bullets should really be added into the mix.
If you are mag constrainted to 2.800" then the 6 CM or 6X47L become a more reasonable choice.
Running a DBM that allows 2.860" or longer OAL, then the 243 is going to be hard to beat both in cost & performance.
Lapua 243 brass is cheaper then 6.5X47 Lapua by 10-12 cents/case. Lapua brass is going to hold up better then Hornady, 6.5 CM brass is in the 70 cents/case range.
If you want to go "cheap" on brass, Win 243 Win can be had for 43ish cent/case to your door, about 55% of the cost of Lapua 243.
There is no replacement for displacement, loaded to same pressures the 243 is going to outperform the smaller case capacity of the 6 CM or 6X47L. However, you have to run a longer OAL with the 243 to see the advantages when using the heavier, higher BC match bullets. Rem 700 factory mag box you are limited to 2.810" or so, DPMS AR mag is same 2.810" and in those situations the CM or X47 then gives up little or nothing to a 243 when using the heavier, higher BC bullets.
What action and mag system are you planning on running? If you are limited to 2.810" for OAL, then the 6 CM or 6X47L would be good choice. Ability to run an OAL of 2.860" or longer, then the 243 set up for the heavy match bullets should really be added into the mix.
Re: New build...6 x 47 or 6. CM ?
I'm thinking of running a Suergin 591 action, Manners T5 thumb hole stock,
Badger M5 DBM, with a Rock 26"-28" Bbl.
I'm sitting it up as a match gun.
I'm running a .260 now, and I thought about building a 6.5 x 47L but,
It is not much diffrent from my .260. So, I fig. I would try somthing in the
6mm cal. Somthing flat, and fast. I have a 308, and 300WM. I wanted
To replace the .308 with this gun. Like I stated , I'm open to suggestions
Thank you,
For all comments and suggestions.
I'm thinking of running a Suergin 591 action, Manners T5 thumb hole stock,
Badger M5 DBM, with a Rock 26"-28" Bbl.
I'm sitting it up as a match gun.
I'm running a .260 now, and I thought about building a 6.5 x 47L but,
It is not much diffrent from my .260. So, I fig. I would try somthing in the
6mm cal. Somthing flat, and fast. I have a 308, and 300WM. I wanted
To replace the .308 with this gun. Like I stated , I'm open to suggestions
Thank you,
For all comments and suggestions.
Re: New build...6 x 47 or 6. CM ?
They (6mm/.243) all shoot sub .5MOA if you have a reputable smith build it so it's a question of MV (wind calls), barrel life, and what size projectile you are looking to launch (wind calls)
I think of it as 6xc vs 6x47... MV 2900-3100 fps for 115g but the 6XC has the slight edge in case capacity. I went 6XC because of the shooting games track record. Brass is available or easily made from 22-250.
or
6CM vs .243... if you are looking for more MV 3100-3300+fps for the 115s and the 6CM solves the shorter barrel life question of the .243 but you have to fiddle with brass. Also, I think at 3300+fps you are reaching the limit of the structural integrity of the bullet from an rpm perspective out of a 7.5 twist barrel so I'm not sure you want to go faster.
I had MT guns build me a 6xc with a chamber sized for the 115s and after 40 rounds through it I can say that it is phenomenally accurate and precise. I need to take it out to distance and see how my load works. I'd like to try for 3100fps using RL-17 and see how that works out 1000.
They (6mm/.243) all shoot sub .5MOA if you have a reputable smith build it so it's a question of MV (wind calls), barrel life, and what size projectile you are looking to launch (wind calls)
I think of it as 6xc vs 6x47... MV 2900-3100 fps for 115g but the 6XC has the slight edge in case capacity. I went 6XC because of the shooting games track record. Brass is available or easily made from 22-250.
or
6CM vs .243... if you are looking for more MV 3100-3300+fps for the 115s and the 6CM solves the shorter barrel life question of the .243 but you have to fiddle with brass. Also, I think at 3300+fps you are reaching the limit of the structural integrity of the bullet from an rpm perspective out of a 7.5 twist barrel so I'm not sure you want to go faster.
I had MT guns build me a 6xc with a chamber sized for the 115s and after 40 rounds through it I can say that it is phenomenally accurate and precise. I need to take it out to distance and see how my load works. I'd like to try for 3100fps using RL-17 and see how that works out 1000.
Re: New build...6 x 47 or 6. CM ?
Sniper-2,
6x47L, I'm biased
Here out west a 3100fps velocity cap for the practical precision matches is imposed. 6x47 easily gets close with 115's. The object with load work up is to find the barrel speed node your rifle likes for best accuracy. So don't get hung up on reaching a certain velocity as a goal. 50 fps either way won't matter and won't be realized in the real world. Mine is at 3020 fps with moderate pressure and H-4831 out of a 26" barrel.
Here's some +'s for 6x47.
Having a small rifle primer, small primer pocket and thick case web designed to handle nearly 54,000 psi makes for what "I believe" to be the strongest cartridge case on the market. If you combine this strength with custom dies (minimum sizing), annealing and moderate loads your brass life will be measured in years not months. I'm going on 5 years now and the primer pockets are still very tight. There are zero signs of brass fatigue at this point. A small quantity of brass I have set aside for load work only (they all weigh the same) has close to 30 firings on it!
The cartridge is a very efficient (short with 30 degree shoulder), has a longish neck and intrinsically accurate.
Throating so the baring surface of the bullet is out of the neck/shoulder junction and feeding from AI mags is easily achievable.
There is one negative I can tell you about 6x47L. You'll need to get your bolt bushed to avoid primer flow.
Sniper-2,
6x47L, I'm biased
Here out west a 3100fps velocity cap for the practical precision matches is imposed. 6x47 easily gets close with 115's. The object with load work up is to find the barrel speed node your rifle likes for best accuracy. So don't get hung up on reaching a certain velocity as a goal. 50 fps either way won't matter and won't be realized in the real world. Mine is at 3020 fps with moderate pressure and H-4831 out of a 26" barrel.
Here's some +'s for 6x47.
Having a small rifle primer, small primer pocket and thick case web designed to handle nearly 54,000 psi makes for what "I believe" to be the strongest cartridge case on the market. If you combine this strength with custom dies (minimum sizing), annealing and moderate loads your brass life will be measured in years not months. I'm going on 5 years now and the primer pockets are still very tight. There are zero signs of brass fatigue at this point. A small quantity of brass I have set aside for load work only (they all weigh the same) has close to 30 firings on it!
The cartridge is a very efficient (short with 30 degree shoulder), has a longish neck and intrinsically accurate.
Throating so the baring surface of the bullet is out of the neck/shoulder junction and feeding from AI mags is easily achievable.
There is one negative I can tell you about 6x47L. You'll need to get your bolt bushed to avoid primer flow.
Re: New build...6 x 47 or 6. CM ?
Sniper-2,
have components at my gunsmith for a 6mm build. Considered the two caliber you are as well as a straight 243 and 6SLR. I doubt there's much difference between any of them on target. I went with a 6SLR for the ease of forming, and hopefully better barrel life, we'll see on the barrel life. Good luck with your build.
Sniper-2,
have components at my gunsmith for a 6mm build. Considered the two caliber you are as well as a straight 243 and 6SLR. I doubt there's much difference between any of them on target. I went with a 6SLR for the ease of forming, and hopefully better barrel life, we'll see on the barrel life. Good luck with your build.
Re: New build...6 x 47 or 6. CM ?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SNIPER-2</div><div class="ubbcode-body">Whats the 6SLR ?
Could you give a brief over view on the 6SLR ?
Thank you'
For your time! </div></div>
http://www.6mmar.com/Super_LR.html
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SNIPER-2</div><div class="ubbcode-body">Whats the 6SLR ?
Could you give a brief over view on the 6SLR ?
Thank you'
For your time! </div></div>
http://www.6mmar.com/Super_LR.html
Re: New build...6 x 47 or 6. CM ?
Lets keep this thread going, I too am looking to build a 6mm of some kind.
Torn between the 6xc, Creedmoor and .243 also.
What kind of barrel life can one expect with the 6mm running 3000+fps with the 105grn and 115 dtacs?
Also can you run as long between bore cleanings vs say a 260 rem?
Thanks in advance
BnC
Lets keep this thread going, I too am looking to build a 6mm of some kind.
Torn between the 6xc, Creedmoor and .243 also.
What kind of barrel life can one expect with the 6mm running 3000+fps with the 105grn and 115 dtacs?
Also can you run as long between bore cleanings vs say a 260 rem?
Thanks in advance
BnC
Re: New build...6 x 47 or 6. CM ?
If you're after a 6mm why not go with a 6XC...what am I missing? Proven round, several sources for brass, easy to tune and good barrel life. I keep hearing about 6x47, .243, 6CM. Both the 6x47 and the 6CM have to be formed and the .243 has a short barrel life...why isn't there more of a 6XC following (I don't have one BTW)? I'm honestly curious...seems like an easy choice to me, but what am I missing?
If you're after a 6mm why not go with a 6XC...what am I missing? Proven round, several sources for brass, easy to tune and good barrel life. I keep hearing about 6x47, .243, 6CM. Both the 6x47 and the 6CM have to be formed and the .243 has a short barrel life...why isn't there more of a 6XC following (I don't have one BTW)? I'm honestly curious...seems like an easy choice to me, but what am I missing?
Re: New build...6 x 47 or 6. CM ?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bangnclang</div><div class="ubbcode-body">Lets keep this thread going, I too am looking to build a 6mm of some kind.
BnC </div></div>
I'd like to see some more opinions and info too.
I'm thinking about swapping out a new 6.5 barrel and building a 6x47 L.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bangnclang</div><div class="ubbcode-body">Lets keep this thread going, I too am looking to build a 6mm of some kind.
BnC </div></div>
I'd like to see some more opinions and info too.
I'm thinking about swapping out a new 6.5 barrel and building a 6x47 L.
Re: New build...6 x 47 or 6. CM ?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: ANGLICO Marine</div><div class="ubbcode-body">If you're after a 6mm why not go with a 6XC...what am I missing? Proven round, several sources for brass, easy to tune and good barrel life. I keep hearing about 6x47, .243, 6CM. Both the 6x47 and the 6CM have to be formed and the .243 has a short barrel life...why isn't there more of a 6XC following (I don't have one BTW)? I'm honestly curious...seems like an easy choice to me, but what am I missing?</div></div>
Here's why. Personally, I have yet to physically SEE a 6xc do what it's supposed to. Lots of people make claims, just never see it at the big matches.
Second, the 243 barrel life "myth" is BS. You'll get AT LEAST 2K rounds out of a 243 shooting 115s at 3000+.
You have MULTIPLE sources of brass. You want great quality? Lapua, Norma, et all. You want inexpensive brass for comps you don't mind loosing? Winchester works extremely well.
To me, IMO, the 6XC is nothing more than a marketing ploy and has yet to convince me it can match, let alone exceed, a 243.
The 6x47L is a waste of time and a PITA in my opinion.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: ANGLICO Marine</div><div class="ubbcode-body">If you're after a 6mm why not go with a 6XC...what am I missing? Proven round, several sources for brass, easy to tune and good barrel life. I keep hearing about 6x47, .243, 6CM. Both the 6x47 and the 6CM have to be formed and the .243 has a short barrel life...why isn't there more of a 6XC following (I don't have one BTW)? I'm honestly curious...seems like an easy choice to me, but what am I missing?</div></div>
Here's why. Personally, I have yet to physically SEE a 6xc do what it's supposed to. Lots of people make claims, just never see it at the big matches.
Second, the 243 barrel life "myth" is BS. You'll get AT LEAST 2K rounds out of a 243 shooting 115s at 3000+.
You have MULTIPLE sources of brass. You want great quality? Lapua, Norma, et all. You want inexpensive brass for comps you don't mind loosing? Winchester works extremely well.
To me, IMO, the 6XC is nothing more than a marketing ploy and has yet to convince me it can match, let alone exceed, a 243.
The 6x47L is a waste of time and a PITA in my opinion.
Re: New build...6 x 47 or 6. CM ?
I run my 6.5x47 Lapua alot.I get 1/2 MOA groups all the way out to 1000yds all day long.Hits on IPSC Steel targets at 100-1200yds is literally automatic!
I run my 6.5x47 Lapua alot.I get 1/2 MOA groups all the way out to 1000yds all day long.Hits on IPSC Steel targets at 100-1200yds is literally automatic!
Re: New build...6 x 47 or 6. CM ?
6x47 Lapua gets my vote... of course I might be bias !
Easy to neck the brass, hell you gotta run new brass thru the dies anyhow, what is so tough about this step ?? Brass lasts a long time, primers are easy to get... Can run the 115's and 105 range very well in a 7.5 twist....
Mine loves the 105 Amaxes...
<span style="font-weight: bold">I love it !!!</span>
<span style="font-weight: bold">BUT....Coyotes hate it !</span>
6x47 Lapua gets my vote... of course I might be bias !
Easy to neck the brass, hell you gotta run new brass thru the dies anyhow, what is so tough about this step ?? Brass lasts a long time, primers are easy to get... Can run the 115's and 105 range very well in a 7.5 twist....
Mine loves the 105 Amaxes...
<span style="font-weight: bold">I love it !!!</span>
<span style="font-weight: bold">BUT....Coyotes hate it !</span>
Re: New build...6 x 47 or 6. CM ?
Yea, SM, but you're such a good shot you could throw a stick and hit coyotes.
Yea, SM, but you're such a good shot you could throw a stick and hit coyotes.
Re: New build...6 x 47 or 6. CM ?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Mike</div><div class="ubbcode-body">Yea, SM, but you're such a good shot you could throw a stick and hit coyotes. </div></div>
a 6mm Whore is more like it...
have 5 variations... what is not to like about <span style="font-weight: bold">ANY</span> 6mm ??
not good Mike.. just lucky
GAP 6mm Crusader... coyotes hate it too !
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Mike</div><div class="ubbcode-body">Yea, SM, but you're such a good shot you could throw a stick and hit coyotes. </div></div>
a 6mm Whore is more like it...
have 5 variations... what is not to like about <span style="font-weight: bold">ANY</span> 6mm ??
not good Mike.. just lucky
GAP 6mm Crusader... coyotes hate it too !
Re: New build...6 x 47 or 6. CM ?
I am with Mike. Standard .243 can do anything the others can for less work and money. Wait until you are dumping half your expensive brass on the ground at matches and can't pick it up.
I am with Mike. Standard .243 can do anything the others can for less work and money. Wait until you are dumping half your expensive brass on the ground at matches and can't pick it up.
Re: New build...6 x 47 or 6. CM ?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Rob01</div><div class="ubbcode-body">I am with Mike. Standard .243 can do anything the others can for less work and money. Wait until you are dumping half your expensive brass on the ground at matches and can't pick it up.
</div></div>
yeah but when it says 6xc or 22-250 Win on the headstamp nobody else will want it
Besides, I catch all of my brass in mid air with my toes.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Rob01</div><div class="ubbcode-body">I am with Mike. Standard .243 can do anything the others can for less work and money. Wait until you are dumping half your expensive brass on the ground at matches and can't pick it up.
yeah but when it says 6xc or 22-250 Win on the headstamp nobody else will want it
Re: New build...6 x 47 or 6. CM ?
Some good reading on 6xc. Note that velocities were with a 31" barrel but I shoot a naked 115 DTAC out of a 26" Bartlein @ 3024, 105-107 class @ 3090-3063. Very accurate and no more temp sensitive in my testing than h4350 or 4831sc , I'm on 3rd or 4th jug and also use it in 308's. Brass life 7th-9 reload's with Norma brass. I'm not trying to change everyone's/anyone's mind, I know that would be an exercise in futility.
http://www.6mmbr.com/reloder17.html
Some good reading on 6xc. Note that velocities were with a 31" barrel but I shoot a naked 115 DTAC out of a 26" Bartlein @ 3024, 105-107 class @ 3090-3063. Very accurate and no more temp sensitive in my testing than h4350 or 4831sc , I'm on 3rd or 4th jug and also use it in 308's. Brass life 7th-9 reload's with Norma brass. I'm not trying to change everyone's/anyone's mind, I know that would be an exercise in futility.
http://www.6mmbr.com/reloder17.html
Re: New build...6 x 47 or 6. CM ?
Im liking that 6mm SLR cartridge. I was thinking of a straight 284 for my next one but I didnt want a long action. That 6 SLR though is perfect. Easy to get 3000-3100 with 115s, 2K+ round barrel life, good cheap Winchester brass available, one pass through the sizing die to make them, damn whats not to like?
Im liking that 6mm SLR cartridge. I was thinking of a straight 284 for my next one but I didnt want a long action. That 6 SLR though is perfect. Easy to get 3000-3100 with 115s, 2K+ round barrel life, good cheap Winchester brass available, one pass through the sizing die to make them, damn whats not to like?
Re: New build...6 x 47 or 6. CM ?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Mark S</div><div class="ubbcode-body">Some good reading on 6xc. Note that velocities were with a 31" barrel but I shoot a naked 115 DTAC out of a 26" Bartlein @ 3024, 105-107 class @ 3090-3063. Very accurate and no more temp sensitive in my testing than h4350 or 4831sc , I'm on 3rd or 4th jug and also use it in 308's. Brass life 7th-9 reload's with Norma brass. I'm not trying to change everyone's/anyone's mind, I know that would be an exercise in futility.
http://www.6mmbr.com/reloder17.html </div></div>
Mark- What loads of 4350 are getting you to 3024 with the 115s? I have the same barrel as you...26" Bartlein 6XC. I bought some RL-17 after reading that article and the 115s are grouping in the .2s with 37.5g... I have no idea how fast they are going but they can't be more accurate. The other thing that people don't talk about is how much smoother RL-17 feels in recoil. I had the feeling I was connected to the bullet as it flew down range whereas 4350 is kind an abrupt "crack".
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Mark S</div><div class="ubbcode-body">Some good reading on 6xc. Note that velocities were with a 31" barrel but I shoot a naked 115 DTAC out of a 26" Bartlein @ 3024, 105-107 class @ 3090-3063. Very accurate and no more temp sensitive in my testing than h4350 or 4831sc , I'm on 3rd or 4th jug and also use it in 308's. Brass life 7th-9 reload's with Norma brass. I'm not trying to change everyone's/anyone's mind, I know that would be an exercise in futility.
http://www.6mmbr.com/reloder17.html </div></div>
Mark- What loads of 4350 are getting you to 3024 with the 115s? I have the same barrel as you...26" Bartlein 6XC. I bought some RL-17 after reading that article and the 115s are grouping in the .2s with 37.5g... I have no idea how fast they are going but they can't be more accurate. The other thing that people don't talk about is how much smoother RL-17 feels in recoil. I had the feeling I was connected to the bullet as it flew down range whereas 4350 is kind an abrupt "crack".
Re: New build...6 x 47 or 6. CM ?
I'm using RL17 to get the 3024, 38.5 grains with the 115 into the lands. I tried 4350 but only to chrono and test a few 105-115's the 17 shot so well 'like yours' why bother. My Bartlein is a medium Palma contour on a Sako TRG. Since I really like the round and had the reamer I'm building another with a 24" Krieger on Stiller Tac 30 in an AIC's will know shortly if I can make 3000 with good brass life, bettin I can.
I'm using RL17 to get the 3024, 38.5 grains with the 115 into the lands. I tried 4350 but only to chrono and test a few 105-115's the 17 shot so well 'like yours' why bother. My Bartlein is a medium Palma contour on a Sako TRG. Since I really like the round and had the reamer I'm building another with a 24" Krieger on Stiller Tac 30 in an AIC's will know shortly if I can make 3000 with good brass life, bettin I can.
Re: New build...6 x 47 or 6. CM ?
ok, yeah that RL-17 seems to do the trick. I heard that folks running 4350 run out of case capacity or they start seeing pressure before they can get over 3000fps. When I get a day with a chrono I'll post my speeds. I want to see if I can work my way up to 40g of RL-17 3100+ and still have the same accuracy I'm seeing at 37.5.
ok, yeah that RL-17 seems to do the trick. I heard that folks running 4350 run out of case capacity or they start seeing pressure before they can get over 3000fps. When I get a day with a chrono I'll post my speeds. I want to see if I can work my way up to 40g of RL-17 3100+ and still have the same accuracy I'm seeing at 37.5.
