@sennasteve What DOPE chart and mounting system is that in your picture (post #18)?
- Thread starter Georgedubya
- Start date
@sennasteve What DOPE chart and mounting system is that in your picture (post #18)?
27 inch only for mine. Anything shorter is simply not ideal for the powder burn rates that are also ideal. 200 fps decrease, no thank you! Not conducive to optimal usage for this caliber in my opinion.
27 inch:
Code:
**** Input data: Date: 19-Jan-2020 Time: 19:54:44
Cartridge................. = .338 Lapua Mag.
Projectile type........... = .338, 285, Hornady ELD-M 33381 G7 with boattail
Max.avg.pressure(Piezo CIP)= 60916 psi Shot start / init pressure = 3626 psi
Projectile weight (gr)= 285 Groove caliber (in)= 0.338
Length of cartridge (in)= 3.778 Length of case (in)= 2.715
Case capacity(Grains Water)= 108.50 Length of projectile (in)= 1.728
Length of barrel (in)= 27.000
**** Values calculated:
Seating depth (in)= 0.665 Volume displaced (gn H2O)= 14.40
Comb.chamber volume(gn H2O)= 94.10 Projectile travel (in)= 24.950
**** Input data:
Propellant type........... = Hodgdon Retumbo
Charge weight..........(gr)= 93.0 Load density......(g/cu.cm)= 0.986
Heat of Explosion (cal/lb)= 401943 Ratio of spec. heats cp/cv = 1.231
Solid density (gr/cu.in)= 409.7 Weighting factor...........= 0.5
Burning rate factor Ba(1/s)= 0.337 Pro-/degressivity factor a = 1.600
Burning limit ......... z1 = 0.7 Combust.Chamber Vb(ft³)= 2.157399E-4
Factor.................. b = 2.554 X-S.Area of Bore A(ft²)= 6.12056E-4
Bulk density (gr/cu.in)= 233.9 Projectile mass mp (lb)= 4.071429E-2
Loading ratio (%)= 106.6 Projectile travel x(ft)= 2.079134E+0
**** Results calculated:
Maximum pressure ........ = 58158 psi Way of projectile at Pmax = 2.70 in
Muzzle velocity ......Ve = 2782 fps Muzzle pressure .......Pe = 10969 psi
Project. energy at muzzle = 4899 ft.lbs Fraction of powder burnt = 100 %
Projectile travel time from 10% Pmax to muzzle = 1.41 ms24 inch:
Code:
**** Input data: Date: 19-Jan-2020 Time: 19:55:28
Cartridge................. = .338 Lapua Mag.
Projectile type........... = .338, 285, Hornady ELD-M 33381 G7 with boattail
Max.avg.pressure(Piezo CIP)= 60916 psi Shot start / init pressure = 3626 psi
Projectile weight (gr)= 285 Groove caliber (in)= 0.338
Length of cartridge (in)= 3.778 Length of case (in)= 2.715
Case capacity(Grains Water)= 108.50 Length of projectile (in)= 1.728
Length of barrel (in)= 24.000
**** Values calculated:
Seating depth (in)= 0.665 Volume displaced (gn H2O)= 14.40
Comb.chamber volume(gn H2O)= 94.10 Projectile travel (in)= 21.950
**** Input data:
Propellant type........... = Hodgdon Retumbo
Charge weight..........(gr)= 93.0 Load density......(g/cu.cm)= 0.986
Heat of Explosion (cal/lb)= 401943 Ratio of spec. heats cp/cv = 1.231
Solid density (gr/cu.in)= 409.7 Weighting factor...........= 0.5
Burning rate factor Ba(1/s)= 0.337 Pro-/degressivity factor a = 1.600
Burning limit ......... z1 = 0.7 Combust.Chamber Vb(ft³)= 2.157399E-4
Factor.................. b = 2.554 X-S.Area of Bore A(ft²)= 6.12056E-4
Bulk density (gr/cu.in)= 233.9 Projectile mass mp (lb)= 4.071429E-2
Loading ratio (%)= 106.6 Projectile travel x(ft)= 1.829134E+0
**** Results calculated:
Maximum pressure ........ = 58158 psi Way of projectile at Pmax = 2.70 in
Muzzle velocity ......Ve = 2707 fps Muzzle pressure .......Pe = 12710 psi
Project. energy at muzzle = 4639 ft.lbs Fraction of powder burnt = 100 %
Projectile travel time from 10% Pmax to muzzle = 1.32 ms20 inch:
Code:
**** Input data: Date: 19-Jan-2020 Time: 19:55:45
Cartridge................. = .338 Lapua Mag.
Projectile type........... = .338, 285, Hornady ELD-M 33381 G7 with boattail
Max.avg.pressure(Piezo CIP)= 60916 psi Shot start / init pressure = 3626 psi
Projectile weight (gr)= 285 Groove caliber (in)= 0.338
Length of cartridge (in)= 3.778 Length of case (in)= 2.715
Case capacity(Grains Water)= 108.50 Length of projectile (in)= 1.728
Length of barrel (in)= 20.000
**** Values calculated:
Seating depth (in)= 0.665 Volume displaced (gn H2O)= 14.40
Comb.chamber volume(gn H2O)= 94.10 Projectile travel (in)= 17.950
**** Input data:
Propellant type........... = Hodgdon Retumbo
Charge weight..........(gr)= 93.0 Load density......(g/cu.cm)= 0.986
Heat of Explosion (cal/lb)= 401943 Ratio of spec. heats cp/cv = 1.231
Solid density (gr/cu.in)= 409.7 Weighting factor...........= 0.5
Burning rate factor Ba(1/s)= 0.337 Pro-/degressivity factor a = 1.600
Burning limit ......... z1 = 0.7 Combust.Chamber Vb(ft³)= 2.157399E-4
Factor.................. b = 2.554 X-S.Area of Bore A(ft²)= 6.12056E-4
Bulk density (gr/cu.in)= 233.9 Projectile mass mp (lb)= 4.071429E-2
Loading ratio (%)= 106.6 Projectile travel x(ft)= 1.495801E+0
**** Results calculated:
Maximum pressure ........ = 58158 psi Way of projectile at Pmax = 2.70 in
Muzzle velocity ......Ve = 2582 fps Muzzle pressure .......Pe = 15974 psi
Project. energy at muzzle = 4220 ft.lbs Fraction of powder burnt = 100 %
Projectile travel time from 10% Pmax to muzzle = 1.19 msThanks @AIAW this is gold 
Is it quickload? Seems like something I should get to make more educated guesses about loads.
My reason to 20" barrel would be that because it's easy to change it would be nice to have additional short barrel for some hunting situations where shooting distances are less than 200 meters and maneuverability is preferred. All barrels seems to be priced to 990€ here in Finland and I guess that you could get some discount.
Is it quickload? Seems like something I should get to make more educated guesses about loads.My reason to 20" barrel would be that because it's easy to change it would be nice to have additional short barrel for some hunting situations where shooting distances are less than 200 meters and maneuverability is preferred. All barrels seems to be priced to 990€ here in Finland and I guess that you could get some discount.
Thanks @AIAW this is gold
My reason to 20" barrel would be that because it's easy to change it would be nice to have additional short barrel for some hunting situations where shooting distances are less than 200 meters and maneuverability is preferred. All barrels seems to be priced to 990€ here in Finland and I guess that you could get some discount.
Yes sir it is. Excellent for these comparisons, in addition to load development. This is trued data directly from my Sako M10 (expect very similar from a TRG-42).
If it was an additional barrel no problem. I don’t think I would limit myself if the 20" was my only barrel.
Not that it will be needed, but with you being located in Finland you will get WAY better service than we get here in the States. We get screwed by having to deal with Beretta - and generally they just don‘t give a damn. Not Sako’s fault, mostly.
Yes! It would be lovely to have M10 here in Finland and service would be really good. Only problem is that we have quite restrictive licence policy and nowadays for some reason 338lm is difficult to get for hunting even though 338wm, 375h&h and some other quite similar heavy calibers are just fine.
Actually there is not so big difference between 338wm and 338lm but I would like to have that extra speed to make sure that TTSX or naturalis will open properly.
Actually there is not so big difference between 338wm and 338lm but I would like to have that extra speed to make sure that TTSX or naturalis will open properly.
Just received one in 308win today.
Got it from me friend to test, but im afraid, that it might make me want it
Got it from me friend to test, but im afraid, that it might make me want it
Just received one in 308win today.
Got it from me friend to test, but im afraid, that it might make me want it
Still a die-hard AI fan, but the M10 is special in a few places that I wish AI would adapt.
There's no doubt you'll want to keep it, so go go ahead and prepare for that.
Absolutely, go ahead and give in now!
It will be easier in the end. Otherwise the gun lust will just linger.
It will be easier in the end. Otherwise the gun lust will just linger.
I should sell all my rifles to get one M10, i hope i dont get too bad fever on this one
Deam, this M10 is awesome rig.
Maybe weekend i and my son are heading to the gunrange, and zero the scope.
30 MOA base in this rifle.
Maybe weekend i and my son are heading to the gunrange, and zero the scope.
30 MOA base in this rifle
.
Is Sako actually going to start selling them? I hit them up at SHOT last year, followed up with the product manager and no joy. Out of sheer blind luck I happened across a few.
who is doing your barrels?
Careful with that. I looked into it. They do some heat treating to make them strong enough.
Received a JAKI titanium super suppressor.
Tomorrow taking test shots.
Vortex Razor HD II with Spuhr is too low, A4 paper did not fir between the bell and forend
Only some gunporn pictures manage to take.
Must go with Steiner M7Xi.
Tomorrow taking test shots.
Vortex Razor HD II with Spuhr is too low, A4 paper did not fir between the bell and forend
Only some gunporn pictures manage to take.
Must go with Steiner M7Xi.
Slightly off topic but can someone provide 338 load data for this rifle with H1000 and 300 grain Bergers? I am using stock 27" 338 barrel. I prefer H1000 because I am using it for a couple other cartridges.
Code:
Bullet Manufacturer Bullet Bullet Weight (gr) Brass Manufacturer Primer Powder Charge (gr) OAL (in) BTO (in) Brass Sizing SD ES MV (fps) Temp (F)
Lapua Scenar 300 Lapua CCI 250 H1000 88 3.698 2.974 FL 6 14 2696 93Can get another node at 91.5g, but bolt lift isn't great and very faint ejector markings.
First smokes taken with M10.
Deam, this rig is super solid to shoot.
Deam, this rig is super solid to shoot
.
I saw that last year and asked euro optic but they knew nothing. We'll see if they show up as support of parts inventory really dried up last year.
Beretta and to a lesser extent Brownells have alot of the parts for that platform. All the vendors just order them from Beretta instead of stocking them do to the low volume of sales. I talked with the guy at Beretta a few weeks ago.
The one part they don't have is the barrel torque wrench. I checked with everyone. So I am building my own. I'll have to post pictures when complete.
What areas is the AI behind in in your opinion? Also in what way do your loads vary AI vs Sako? Which would you say handles pressure better?
They aren’t huge, but novel differences mainly.
M10:
Bolt can be used as the tool for removing the barrel, or to access the forend toolkit. Technically it can be used as a barrel nut wrench also.
Trigger shoe is rotation adjustable.
All magazines are the same external dimensions.
Ergonomics in the cheek-rest and grip are way better than an AX.
Folding stock lockup is solid and retained.
As far as loading pressure, I feed it pretty much the same diet at the same charge weights as my AX’s. Not a big difference here at all. I would say the Sako and AI have the same primary extraction force and timing. It really comes down to ergonomics. They are both going to shoot exceptionally.
Do you have a link for that info?
Quick dumb question, are both bolts securing the handguard captured or just the one closest to the reciever. Haven't done a barrel change on mine in awhile and on mine just the one is captured, not sure if I broke something or let loose some pins.
Only one is captured, you’re fine.
Statie07 check this out.
Does anyone know if there is enough barrel real estate to chase a 6.5 PRC reamer down the bore? I think I would buy a new creedmoor barrel just for that purpose.
It’s the Sako Export 2020 brochure, both calibers will be released soon
I actually prefer TRG-42 over A1. M10 is interesting because calibre change option not so much because of the looks. I would love to have another calibre and maybe shorter barrel at some point.
My budget at this point is maybe 6000€ For rifle, scope mount, bipod and brake so it’s not that far.
My budget at this point is maybe 6000€ For rifle, scope mount, bipod and brake so it’s not that far.
TRG-22 and TRG-42 are well thought, accurate and simple rifles. TRG bipod is also very good. If you don't need multiple calibers those are just awesome. Only thing that I don't like them is folding stock that folds to wrong side.
M10 is great due multiple calibers and really nice folding stock. And of course there is more than enough places to attach something. And of course with it you don't need to think what if..
Let's see how it goes. At least I have a license to acquire.
M10 is great due multiple calibers and really nice folding stock. And of course there is more than enough places to attach something. And of course with it you don't need to think what if..
Let's see how it goes. At least I have a license to acquire.
For those of you who have an M10, there is a guy that makes barrel bags and bolt pouches. He is starting to make magazine pouches as well. Everything has molle on the back so they can be hooked together. This makes it harder to forget to bring a bolt or magazine along with the barrel. His Hide alias is softcock. The quality and stitching is very good.
Attachments
Things didn’t happened that fast after all and it was indeed wayyyyy too expensive but my cabinet is a lot fuller than this morning
D
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I’ve had one. Shot great. Minuses are rattling magazine, rattling adjustable length of pull, broke the stock (weak point by screw on lower contact point), broke the monopod twice (stopped locking), not optimal ergonomics for shooting off barricades or bags (tapering foreend). Shot it 3k 338lm and 2k 308. Sold it. really nice bolt action, coating and feel however. Also like the barrel change system. Just not solid enough for hard use.
