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Loads for .260 /.243/ 6.5x47/6.5 Creedmoor

Re: Loads for .260

Hi Onemoretime,

Thanks for that. I've read the comparison article, but not the second one about the 6.5 Creedmoor.

I'm thinking that I'll just go for the 6.5x47 and have done with it!

I like the idea of having something unusual (well it is here in the UK) and my mate has some of the brass, plus I can get Lapua brass fairly (?*!?) cheap through him.

I'm looking for reamer spec's now.

Neil
 
Re: Loads for .260

Revisiting this, all I can say about node testing, charge increments, etc. is that its all been covered very adequately here before, and I really don't have any revolutionary process that changes anything you'll already find here. The basic stuff still works fine.

For myself, I'm taking a different path now, which involves harmonic barrel tuners. It allows me to specifically tailer loads for ballistic and bore life advantages, then adjust the barrel to shoot well with the arbitrary loads. My tuner approch is lower in cost, can be easier on the bore, and requires no actual gunsmithing. Search the site for 'buck nut tuner', and you'll get the idea.

All I'll say for now is that it appears to be very promising, and initial results are quite good on my .260 LR gun. I'll be trying it with other guns/calibers soon, starting with a ten year old box-stock M700 VLS .223.

Greg
 
Re: Loads for .260

6.5x47
Shot 42.3 130 JLK this weekend still playing not happy yet.
Zero pressure issues easy bolt lift no ejector wipe
OAL 2.800 .010 jam, should be around 3000fps per QL
laser
going to try some more things maybe more jam, longer means yep more powder more fps Hmmmmmmmm funny how i tend to follow that route.
post more info after next round of testing
 
Re: Loads for .260

From a friend with some considerable experience hunting with a 260:

I've tried every powder under the sun, these worked for me.

For deer and elk it's a 130 Swift Sirocco and 45.5 grains of H4350. I loaded them to 2,900 fps.
130 Barnes should work well too.

For 120's use 45.5 grains of w760. The hit 3,000 fps.


For 140 Nosler Partition's I loaded 51 grains of RL25 in once fired cases for 2,800 fps. This would be a heck of an elk load.

For 85 grain HP's use RL15. One hole groups.
 
Re: Loads for .260

Well here is my new data that I shot today. This was with new Hornady brass, the cases were sorted by weight and these were the lightest group and weighed 147 gr. Fed LR Match primers. The bullets are the Hornady 140 gr A-Max that I coated with hBN. I am using 42.8 gr of RL-17 powder. The powder was thrown on a Pact powder dispenser. The barrel is a Rock 26” 1 in 8 twist with only 25 rd shot through it before this group of 10. Temp was 61. BP was 24.91

2889
2861
2849
2838
2875
2867
2833
2844
2835
2855
AV- 2854
ES-56
SD-18

Here is the second group of 10 rds. The crono missed one round so you will only see 9 rds.

2851
2852
2860
2851
2869
2883
2865
2881
2846
Av-2862
SD-13
ES-37

The cases look exactly like my previous post but those cases had been fired 4 times working up. You will notice that in my previous post that the speed are in the 2900 range. I think that is because the barrel was just cleaned so they shoot just a little faster till it get enough hBN in it to make it run better. You will notice the ES and SD dropped on the second group of 10.

All of the shots were taken one right after the other with no cool down or stoping and waiting between shots. The barrel didn't heat up much though. It feels like RL-17 shoots cool. After 10 rds you could put your hand on the barrel without a problem.

Scott
 
Re: Loads for .260

I am seeing sub 1/2 MoA goups with the following @100 Meters with my .260

41.7 Gr of N550 and 139 gr Lapua Scenars
40.5 Gr of N 550 and 123 gr Lapua Scenars
38.7 Gr of N 150 and 123 gr Lapua Scenars

CCI Br2 Primers
Neck Sized RP Brass trimmed to 2.015 in
The rifle is a Savage 110 FP with a 27.5 inch Walther Barrel 1 in 8 Twist.
 
Re: Loads for .260

Update on the buck nut tuner.

Not the miracle cure I once believed it to be. The spoiler is that the tuner goes out of tune very signficantly when the outdoor temperatures swing.

What seemed to be very quick and easy the first time I made it work soon became a serious chore, and waste of ammo and bore life when I found myself trying to get the sucker back into tune for about the tenth time.

I'm hearing that this is not the case with .22's, but I'm finding out for myself that for my centerfire rifles, the two (.260 and .223) that I tried it on seem to do better without the tuner in the long run.

Like Edison said, we just found another new way how not to make a lightbulb.

Greg
 
Re: Loads for .260

243 Win
Lapua Brass
105AMAX kissing the lands
41.5 H4350
Fed210M
3065FPS via 25" Hart
Under .5MOA
Low ES.
 
Re: Loads for .260

243 Win
Lapua Brass
105 Berger VLD .010 in the lands.
44.7 RL22
Fed210M
3060FPS via 25" Hart
Under .5MOA
Low ES.

The 107 SMK ran equally as well .010 off the lands.
 
Re: Loads for .260

Found the best load for my 243.

243 Win
Lapua Brass
105 Berger VLD .010 in the lands.
41.5 IMR 4350
Fed210M
3115FPS via 25" Hart
Under .5MOA
Single digit ES.
 
Re: Loads for .243

26" ruger KM77VT 1/9 rh twist. Best load
S&B brass
cci primer
100gr AMax
29.5 gr. 4064

.35" 5 shot group

Loaded with Lee powder scoop... Who knew???
 
Re: Loads for .243

Was that 105 amax? 243 correct? And 39.5 grains?

Thanks.
 
Re: Loads for .243

Sorry 105 gr amax. I was using 100 gr. pspbt but 29.5 gr is correct. I took it to 31.5 the 33.5 but but both opened up to an inch or better. Will using a lower charge save my barrel?
 
Re: Loads for .243

My .260 loads.

Sako M591, 8 Twist Broughton-24" (with less than 100 rounds down it).

Federal 210M Primers
Rem Brass/2.025 Trim
142 SMK
OAL 2.8
OGIVE 3.215

42gr H4350 2649 AVG .7"
43gr H4350 2730 AVG Sub .6"
44gr H4350 2793 AVG Sub .5"
45gr H4350 2844 AVG .85" ish

(wasn't really going for groups, just FPS readings). The 44gr load seemed to better the 43gr load, but very very slightly.

Will probably run the 43gr load due to low/med temp at testing.

No Psi signs what so ever. 2500ft elevation, 60 to 65F.

***Went with 44gr load. Man this is the ticket. Not sure I favor it over the .243, but man this dog barks! Thanks Jered at Patriot***
 
Re: Loads for .260

I shot the following loads through my 260 Remington, M700SA, HTG-ADJ, 26" Kreiger Heavy Palma 1x8'', Jewell, Wyatts Extended Box Magazine, Williams Bottom Metal, Farrell Base, NF Rings, NXS 5.5x22x50ZS. Built by WN Roscoe at Louisiana Precision Rifles.

(Load 1) per Quick Load should have generated a MV of 2886 FPS. But the MV was chronographed at 2760 FPS, 2749 FPS, 2724 FPS. The load was 140 VLD, 43.3- H4350, 243 Lapua Brass turned and sized, CCIBR, 2.940" COAL This 3 shot group measured 0.30" outside.

(Load 2) per Quick Load should have generated a MV of 2861 FPS. But the MV was chronographed at 2799 FPS, 2813 FPS, 2796 FPS. The load was 140 VLD, 46.9-RE22, 243 Lapua Brass turned and sized, CCIBR, 2.940" COAL This 3 shot group measured 0.90" outside.

(Load 3) per Quick Load should have generated a MV of 2828 FPS. But the MV was chronographed at 2729 FPS, 2719 FPS, 2751 FPS. The load was 140 VLD, 46.5-H4831SC, 243 Lapua Brass turned and sized, CCIBR, 2.940" COAL This 3 shot group measured 0.80" outside.

(Load 4) per Quick Load should have generated a MV of 3203 FPS and the MV was chronographed at 3148 FPS, - 3208 FPS. The load was 100 Nosler Balistic Tip, 42.5-IMR 4064, 243 Lapua Brass turned and sized, CCIBR, 2.850" COAL This 3 shot group measured 0.90" outside.

Mr. Roscoe builds very accurate rifles and is a good guy to work with.
 
Re: Loads for .260

Couple of hunting loads for 260 Rem.

129 SST 2.800 OAL 210M primer 47.0gr RL19 2850fps 24" factory tube.

120 TSX 2.765 OAL 210M 43.5 H4350 2850fps 24" barrel

120 corelokt 2.800 OAL 210M 45.0 H4350 2900 fps 24" barrel

100 NBT 2.800 OAL 210M 43.0 IMR 4064 3150FPS 20" M7

140 Hornady SP 2.800 OAL cci200 45.0 RL 19 2725 22" Ruger


Above loads shoot 3/4" or better at 100 yards and have been shot out of 4 different 260 Rems. They all shot consistently from rifle to rifle.
 
Re: Loads for .260

Recently re-bbled my 243 with a 1/7.7 Bartlien 5R.
This load simply hummed with all three bullets.

Load-
243Win
Lapua Brass
107SMK .010 jump
105Berger VLD .010 in the lands
105 AMAX kissin the lands
48grns of H1000
Fed210M
3075FPS(avg) via 26" Bartlien
Low ES, SD. Bugholes.
 
Re: Loads for .260

Guys i really need some data for the 6.5 creedmoor with 120gr bullets. I want to try H4350, RE17, and H414. Please advise!! Lee
 
Re: Loads for .260

Hornady published their data on this:
http://accurateshooter.wordpress.com/2007/11/07/hornady-introduces-new-65-creedmoor-cartridge/

I'd work with this, or pick a starting point for R17 and H414 to try. Also, call Hodgdon and Alliant to see what they have. Since R17 is a touch slower than H4350, you should be able to get a little more powder than H4350. 414 is a little slower than H4350, so you'll be working with a little less than the H4350 powder amount. You may need to work up loads for these powders in your rifle.

 
Re: Loads for .260 /.243/ 6.5x47/6.5 Creedmoor

260 Remington

44gr H4350, RP260 brass, BR2, 139gr Scenar, OAL 2.82":
~2825fps with 24" Krieger 1:9" twist.
~2860fps with 22" Lilja 1:8" twist

44gr N550, RP260 brass, 210M, 123gr Scenear, OAL 2.82":
~3000fps with 24" Lilja 1:8" twist

42.7gr N550, Lake City 308 brass, 210M, 120gr SMK, OAL 2.81":
~2950fps with 22" Lilja 1:8" twist (AR-10)

Mike
 
Re: Loads for .260 /.243/ 6.5x47/6.5 Creedmoor

What would be the smallest grained bullet you would run in a 260 8 twist?
 
Re: Loads for .260 /.243/ 6.5x47/6.5 Creedmoor

And would it be too much to ask for Ogive measurements instead of COAL, because bullet tips vary a lot.... I was just trying to load to 2.820 with 142 SMK's for my 260 and they are very different from bullet to bullet. I was getting 2.814, 2.823, 2.836, 2.810, etc...
 
Re: Loads for .260 /.243/ 6.5x47/6.5 Creedmoor

I second the request to break out each cartridge into it's own page. There are enough of these posts that guys leave out what cartridge they are shooting and you have to know your components to read along. (Ie. knowing Hornady doesn't make .260 brass)

Not only would it clarify and make things safer, it would also freshen up them as new topics.
 
Re: Loads for .260 /.243/ 6.5x47/6.5 Creedmoor

I am looking for any load data/experience for the following:
6.5x47L
140VLD
RL17

I have used RL17 with decent success with Berger 130gr VLD upto 2950fps, .5" group at 100yds. I can push the 130VLD to 3000fps but accuracy degrades to about 1 to 1.2".

Any info or experiences would be appreciated.
 
Re: Loads for .260 /.243/ 6.5x47/6.5 Creedmoor

Insert Name Here,

My loads for the Berger, 130VLD are COAL 2.803, Primer Rem 7-1/2
RL17 39.5gr, 2950 fps average, 5-shot group .75"
RL17 40.0gr, 2997 fps average, 5-shot group 1" or larger.

40gr RL7-1/2 is too hot for my rifle. I tried some BR-4 primers with 40gr RL17 and got less pressure signs with an average 10 fps increase, but no real improvement in accuracy. 39.5 is about the max with Rem 7-1/2 primers. Unfortunately, I have 5K of the Rem 7-1/2, but only 50 of the CCI BR-4.

Next I'll try berger 140 VLD. I am a little confused about the Berger 140's the box I have says 140 VLD with BC of .595. The Berger website says 140VLD is .615 and the 140LR is .592?

Anyway I'll report my RL17 and Berger 140VLD results next.
 
Re: Loads for .260 /.243/ 6.5x47/6.5 Creedmoor

Alright here are my results for 6.5x47L, Berger 140VLD, RL17, 39.7gr, Rem 7-1/2 primer, COAL 2.803, Lapua Brass.

Average Group size for five 5-shot groups and 1 3-shot group is .615"
Average Velocity is 2860 FPS for 30 rounds
ES for 30 rounds 31fps
SD for 30 rounds 9.75fps.

I am going to try and attach photos. Note 39.7gr of RL17 is absolute max in my rifle due to primer cratering. I believe that the rem 7-1/2 primers are softer that other primers and if I go to 40.2 gr of RL17 I start piercing primers. Some cratering is due to too much clearance around my firing pin. Firing pin protrusion is set to .040 +/-.005. a twice fired resized case head measures .4710 to .4711. After this load the case head measures .4717 to .4718. This is within normal expansion and there are no shinny extractor marks on the case head.

So far RL-17 is the only powder I have used that can get the 140VLD up to 2850fps without piercing the Rem 7-1/2 primers. I would prefer to use CCI BR-4, but cannot acquire them at this time due to the great primer hording going on.
[img:center]<a href="http://gs177.photobucket.com/groups/w214/JQEURFLHF1/?action=view&current=Scan0011.jpg" target="_blank"><img src="http://gi177.photobucket.com/groups/w214/JQEURFLHF1/Scan0011.jpg" border="0" alt="Berger 140VLD, RL17 39.7gr, second round"></a>[/img]
 
Re: Loads for .260 /.243/ 6.5x47/6.5 Creedmoor

Scan0011.jpg
 
Re: Loads for .260 /.243/ 6.5x47/6.5 Creedmoor

.243 Win

Lapua brass neck sized with a .270" bushing (for 0.003" nk tension)

CCI BR2 primer

47.5gr H1000 (It was a little more accurate than the Re25 was. Also of note, at 90*F ejector swipe and sticky bolt lift were present at 48.0gr H1000)

115gr BN coated DTAC seated at 2.850" COAL (0.030" jump)

2965fps out of a 27" 1-8 twist barrel at 75*F, 60' ASL
 
Re: Loads for .260 /.243/ 6.5x47/6.5 Creedmoor

Here is some RL-17 for a 6.5 Creedmoor. I loaded some ammo and shot at 1000 yesterday. It took 92 clicks of 1/4 moa click to get to 1000 or 23 moa. Shooting a 140 gr berger at 23.11 bp and 77 deg that gives me about a 2875 fps with a load of 42.2 gr of RL-17. When I cronoed these loads the crono said about 2900 fps, so my crono may be off by a bit. I had an ever so slight primer flow and no marks on the brass. From my experiance the RL-17 will give just about 25fps more speed than the H4350 with about the same pressure.

My prevoius data, as seen up a couple of posts, was with a diffrent barrel. This data is with my new barrel

Scott
 
Re: Loads for .260 /.243/ 6.5x47/6.5 Creedmoor

Test Reloader17, 6.5x47L, 120grbullet, CCI#41primer, 92F, 200yds

Wind was @5 from 5 to 7 o'clock.

.0025 neck tension
.0010 jump
3.101 oal hex comparator, sinclair
no sizer button
full length sized
26" 1/8" twist Kreiger
AI/AE action

41.3
.5MOA
3072 fpsmv av
ES 2

41.8
.3MOA
3084 FPSMV AV
ES 17

The 42 grain charge ran 3145fps but opened the group to 1.25moa.
Some of the opening was my fault. I was destracted by approaching a hot load.
Some have experienced this powder to fail at other distances in accuracy. I stopped because I didn't take enough brass to the range but I will shoot at 600yds next.
The bullet is made by Cauterucio, 10 caliber tangent ogive. I tried no other seating depth but might.
Groups were only three shots.
Reloader 15 and Varget shoot as accurate but 125fps slower with similar pressure signs indicated by primer extrusion, recoil and extraction.
 
Re: Loads for .260 /.243/ 6.5x47/6.5 Creedmoor

Got a SH Valkyrie a few months back. Here is the load that I am using now. It is a Badger action with a 24" Bartlein barrel. I am using Nolser brass, CCI BR2 primers, Lapua 139 gr Scenar bullets, and 43.5 grains of H4350. The OAL is 2.860. I am getting 2850 fps.
 
Re: Loads for .260 /.243/ 6.5x47/6.5 Creedmoor

Surgeon action, Bartlien 8 Twist-28" Heavy Palma, 1500 rounds est.
Std .243 Reamer.
All Loads are set up as follows except for powder charge.
Primer=F210M
Brass=Winchester
OAL=2.855/2.860
OGIVE=3.295
2500ft, 80F

***Will be running a couple of the loads and test for accuracy. The 38gr 107 load has been used quite a bit for 500M Varmint Silhouette matches. Very mild recoil, easy to see shots, very accurate out to 500M.
***The 2950 to 3000fps loads will be retested for accuracy at 200,300,385, and 500M. (Will have to stretch it on out afterwards though). All loads listed below are worthy of shooting the Varmint matches. I was truely amazed at how accurate the 5 shot groups looked on steel while testing these. Just didn't see anything that looked like it wouldn't really group.

All fps avg taken on at least 5 shots, if string was incomplete due to chrony issue, overcast, etc, string was retested.

***Also tested with another 8 twist Bartlien and results were very consistant 30fps faster than what is shown below. This barrel only has 200 rounds through it.

Surgeon 107SMK
2755 fps avg 36.5gr H4350
2766 fps avg 37gr H4350
2778 fps avg 37.5gr H4350
2835 fps avg 38gr H4350 VERY CONSISTANT
(Groups listed below were tested with CED Chrony)
2813 fps avg 38gr H4350
2821 fps avg 38.5gr H4350
2890 fps avg 39gr H4350
2883 fps avg 39.5gr H4350
2889 fps avg 40gr H4350
2921 fps avg 40.5gr H4350
2944 fps avg 41gr H4350
2979 fps avg 41.5gr H4350 Great Groups
3012 fps avg 42gr H4350 Great Groups

Surgeon 115gr DTAC
2825 fps avg 40gr H4350
2849 fps avg 40.5gr H4350
2877 fps avg 41gr H4350
2905 fps avg 41.5gr H4350
2933 fps avg 42gr H4350
2975 fps avg 42.5gr H4350
3010 fps avg 43gr H4350 Great 300yrd group
3024 fps avg 43.5gr H4350 Good 300yrd group
3056 fps avg 44gr H4350 Ejector Swipe

The last load listed at 44gr using 115gr DTAC's was the only load that showed any sign of pressure. First round on string was slight tight bolt, and 2 out of the 5 rounds had slight ejector swipe.



UPDATE ON 8-12-09.
Both of the loads below were tested for accuracy at 300 and 600 yards. Very very impressive results on steel.

Stiller Tac 30, Bartlien 8 twist 24", Rem Varmint Contour. 250rounds
107SMK
3034 fps avg 42gr H4350
(This load also performs very well in the Surgeon, but runs about 20fps slower.)


Surgeon Repeater, Barlien 8 twist 28", Heavy Palma contour. 1550 est rounds.
115gr DTAC BN Coated.
3010 fps avg 43gr H4350
(One round out of 25 had the slightest bolt lift, and the slightest ejector swipe).
 
Re: Loads for .260 /.243/ 6.5x47/6.5 Creedmoor

260 Rem
Win 7-08 brass necked down (.288 bushing for .002 NT)
Wolf LR primer
46.5gr H4831
142 SMK loaded to 2.840 OAL
2775 FPS
 
Re: Loads for .260 /.243/ 6.5x47/6.5 Creedmoor

Good thread guys! I'm new here so lots to learn. I have a .260 Rem rifle built by GA Precision. It has a 24" M24 counter barrel made by Rock Creek and carbon fiber wrapped by ABS Inc. Lawton action with AICS mags. Nightforce 12-42x56 BR scope. I started my load development with the standard slow powders most suggest for the .260 Rem like H4831SC. I found I could totally fill the cases and not get a 140 gr bullet over 2700 fps. 130gr also were only going about 2750fps with a full case. So I decided to try some slightly faster powders. Reloader 19 gave better velocity but high SD and extreme spread, and accuracy was not there. Ramshot Hunter also was not as accurate as I want. The powder I have found to work best is Hodgdon Hybrid 100V.

Remington cases
130gr Norma Diamondline
CCI BR-2 primer
45 gr Hybrid 100v
Seat to 2.810
Velocity 2950 fps SD 7-8
Accuracy 0.25-0.30 inch at 100 yards

with a good load in hand for a 130gr bullet I moved to on to another goal, a top notch hunting load. I am using the 130gr Swift Scirocco II bullet on 44.5 gr of Hybrid 100V. Same case and primer. Got 3000 fps 10 feet from the muzzle! 0.55 inch group, SD 7. Cases look fine, no pressure signs. Looks great. Has anybody else tried Hybrid 100V? Anybody tried Nosler .260 Rem brass?
 
Re: Loads for .260

Why do folks say that the 140 VLD is to big of a bullet for the 6.5X47L? That is what i'm planning on useing due to not being able to fine any 130 VLD's. Higher BC is always a plus. Loads useing the 140 VLD is HARD TO COME BY!!!! Anyone have any new intell???
 
Re: Loads for .260 /.243/ 6.5x47/6.5 Creedmoor

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: calbearz</div><div class="ubbcode-body">Good thread guys! I'm new here so lots to learn. I have a .260 Rem rifle built by GA Precision. It has a 24" M24 counter barrel made by Rock Creek and carbon fiber wrapped by ABS Inc. Lawton action with AICS mags. Nightforce 12-42x56 BR scope. I started my load development with the standard slow powders most suggest for the .260 Rem like H4831SC. I found I could totally fill the cases and not get a 140 gr bullet over 2700 fps. 130gr also were only going about 2750fps with a full case. So I decided to try some slightly faster powders. Reloader 19 gave better velocity but high SD and extreme spread, and accuracy was not there. Ramshot Hunter also was not as accurate as I want. The powder I have found to work best is Hodgdon Hybrid 100V.

Remington cases
130gr Norma Diamondline
CCI BR-2 primer
45 gr Hybrid 100v
Seat to 2.810
Velocity 2950 fps SD 7-8
Accuracy 0.25-0.30 inch at 100 yards

with a good load in hand for a 130gr bullet I moved to on to another goal, a top notch hunting load. I am using the 130gr Swift Scirocco II bullet on 44.5 gr of Hybrid 100V. Same case and primer. Got 3000 fps 10 feet from the muzzle! 0.55 inch group, SD 7. Cases look fine, no pressure signs. Looks great. Has anybody else tried Hybrid 100V? Anybody tried Nosler .260 Rem brass? </div></div>

Thanks interesting read.

I've been struggling with my .260 rifles. The 139 Scenar Black Hills load is pretty good and my reloads with combinations of 123 lapuas, 142 SMK's and 140 SMk's and H4831 and H4350 have been spotty at best.

I just picked up some H100V and some RL19 to try out.
 
Re: Loads for .260 /.243/ 6.5x47/6.5 Creedmoor

Dragging the Chrono out tomorrow and testing some 139 Scenars in the 6.5 Creedmoor.

I've loaded 10 rounds each in new brass, Fed 210M primers, H4350 powder in these increments:

42.5 (5 rounds)
42.7
42.9
43.2
43.5
43.7

I'll post results tomorrow...

Jason
 
Re: Loads for .260 /.243/ 6.5x47/6.5 Creedmoor

Back from the range, CM now makes me happy... The factory Hornady ammo was only getting me 2640fps, I've upped the powder charge a little, and now she's up around 2800 where it should be...

I used some 139 Scenars (thanks Mike!) and they seemed to do great.

I shot 2 5 shot groups of each loading. I suck at shooting groups, so take them with a grain of salt, but it told me what I needed to know.

Specs:

Rifle:
Badger Ordnance action, Bartlein 25" barrel with BO Thruster brake

Ammo:
New brass
Fed 210M primers
139 Lapua Scenars
H-4350 powder
COAL 2.815

<span style="font-weight: bold">First load:
</span>
I just threw 42.5 gr of powder with my Charge Master into unprepared, new brass, to make sure there were no pressure signs before I started laddering up. These 5 shots are on the top target marked "zero".
Ave Velocity: 2738
SD: 1
ES: 4

the rest of the loads had the full fussy monty done to them. Fully prepped brass, through the powder with the Charge Master, then checked it on my beam scale.

Low and behold, the first 5 I just threw and loaded had the best "numbers"...

<span style="font-weight: bold">Second load was 42.7 gr
</span>
Average Velocity: 2752
SD: 20
ES: 60


<span style="font-weight: bold">Third load was 42.9 gr
</span>
Average Velocity: 2773
SD: 14
ES: 51


<span style="font-weight: bold">Fourth load was 43.1 gr
</span>
Average Velocity: 2802
SD: 17
ES: 49


<span style="font-weight: bold">Fifth load was 43.3 gr
</span>
Average Velocity: 2807
SD: 24
ES: 67


<span style="font-weight: bold">Sixth load was 43.5 gr
</span>
Average Velocity: 2821
SD: 9
ES: 33

By the time I got to the last load I was done... I couldn't tell you if the group was really that bad, or if I just ass'd it all up...

Even at 43.5 there were no real pressure signs to be concerned about... Primers looked good, and only some very faint extractor marks on the case heads.

Target pics

DSC_0416.jpg

DSC_0417.jpg

 
Re: Loads for .260 /.243/ 6.5x47/6.5 Creedmoor

Off to the range tomorrow to try some hBN coated bullets w/ R-17 powder.

I'll update results.

DSC_0463-1.jpg
 
Re: Loads for .260 /.243/ 6.5x47/6.5 Creedmoor

Shot this load all year long. Best group was my son shoot in a F-Class match shot 20 shots. 15 in the x ring (3 inch) and 4 in the 10 ring and 1 9 ring. Most of the time will shoot in the 190s to 200s at 600.

Remm Brass
139 lapuas.
48.3 grs H4831SC
COAL 2.820
CCI BR2 primers
26" barrel 2870fps SD 7 Bartlien 8.5 twist
2 at 26" barrel 2850 SD 9 Kreiger 8 twist
24" barrel 2790 fps SD7 8 twist

All the barrels are cut with the same reamer.
 
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