One powder for functioning M1A and M1 Garand loads?

[Outpost75]

Outpost, as you pointed out, I appreciate the warning. I certainly wouldn’t want anyone to endanger themselves, others, or their rifles. Data came from Army TM 43-0001-27, dated April, 94, with change 2, Dec, 96. This is in line with the Hodgdon manual for IMR 4895.

Does not agree with pressure test data conducted by William C.Davis, Jr. for NRA in the 1980s, or with Camp Perry experience during same period with broken right locking lugs on TRW M14 bolts. Larry Gibson may have further info.

[Castaway]

Can’t answer to that. Last thing I want is a conflict, but the TM data is within Hodgdon book, although at max end. Good case for starting low and working up

[AlaskaMike]

I gave up on my cast loads in my M1 and M1a , once I was able to get 100% cycle with H4895 and 5477 Accuracy declined.
Those are the only 2 powders I tried to get function and accuracy. Accuracy was good with 2400, trailboss.
bullets tried , Lee 170s , Lyman 314299 sized to .310 --best non functioning accuracy was a Flat nose 160 grain TL design from RanchDog

Maybe a like new gas system and some worn springs would help?

I think you've probably discovered why many of us use slower powders like 4831 and 4350 with cast loads. See my earlier post about the sticky thread.

[dale2242]

I have found 32-34 gr of IMR4895 or IMR4064 to be very accurate in my M1.
I add 1gr of Dacron filler.
I get 100% function with bullets in the 170 gr range.

[Petrol & Powder]

For 308 Winchester (7.62 NATO) I landed on IMR 4895 years ago and saw no reason to look further. It consistently produced excellent results.

I've had people swear to me that 748 is better but it produced larger groups (not by much but larger) than 4895.

In the smaller caliber cartridges based on the 308, such as the 7mm-08 and 243 Win., I switch to IMR4064. I could probably use 4064 in 308 if needed.

[dogmower]

I use a 200 grain boolit in the garand, pc and sized .311 over 35 imr 4895, 34 aa2460 or 32 of shooters world Buffalo
All shoot to the same point of aim, are accurate, and cycle 100%

[relics6165]

Silvercreek:

27 grains Accurate Arms 5744 with a 155 or 168 Matchking or Custom Competition will almost cycle a Garand, a few more surely would. AA5744 can also be found as Shooters World Buffalo Rifle, at a much lower price (if you can find any...........).

IMR or H4895 can be reduced to a point where a Garand won't cycle, then increased just enough to assure reliable cycling. Loads can easily and safely reduced to 60% of full loads.

This is for 30-06 only, but the same idea applies for 308/7.62.

[Lloyd Smale]

4895 is THE 308 powder. I try all the new wiz bang powders but keep going back to it. With pc you dont have to download near as much if any with a hard bullet. but if your chasing jacketed accuracy and running your action. Good luck, youll need it.

[dale2242]

I get jacketed "read ball ammo type loads here" accuracy with my cast loads.

[iron brigade]

Here's a group I shot with my M1 @100 yards
34 grains of imr 4895 and a 165 silhouette bullet
I only load six rounds in the clip. The m1 is quite capable of good accuracy.

[fatelvis]

36 grains of H4895 under any 180-200gen GC bullet will cycle both my Garand's actions, and will be mild and accurate at 100 yds.

[cvn 71]

i have been following this thread because i have the same question except i have a308 garand and ar 10 i am looking for a load for.i am trying to stay with imr 4895 and a 311299 since that is what i use in my 06 garands.not too concerned with the ar10.i wasnt sure how much different the m1a and the 308 garand operating systems are.anyone have a good starting load?

[fatelvis]

i have been following this thread because i have the same question except i have a308 garand and ar 10 i am looking for a load for.i am trying to stay with imr 4895 and a 311299 since that is what i use in my 06 garands.not too concerned with the ar10.i wasnt sure how much different the m1a and the 308 garand operating systems are.anyone have a good starting load?

My load for Garands is 36.0 H4895 under a 311299. In your 308, I would start with 34.0 grns, and if it doesnt function your action, keep bumping up.5 or one grain until it functions 100%.

[cvn 71]

My load for Garands is 36.0 H4895 under a 311299. In your 308, I would start with 34.0 grns, and if it doesnt function your action, keep bumping up.5 or one grain until it functions 100%.

that sounds like a good place to start.looking at the lyman manual that looks safe.i probably would have picked a low starting charge and went with that but its always nice to get a second opinion!