Is IMR 4350 fast enough for M-1 Garand?

IMR-4350 is not too fast.

It is slower then typical powders used in the Garand such as IMR-4895, IMR-4064, BL-C2, and others.

It is not listed in the Hornady #6 manual for any bullet weight for use in the M1 Garand.

It is slow enough, it could cause high gas port pressure and a bent operating rod.

It can be safely used in the other calibers in bolt-action rifles.

However, it is too slow burning to be an optimal powder choice with most bullet weights in .303 or .308.

However if it is cheap enough, it will launch bullets down range.

rc

I've never heard of a powder charge causing compressed bullets?
As for IMR-4350 being too fast, no, it's actually a fairly slow burning powder in it's cartridge class. I use it for 30-06, .270 win, 25-06, .243 win, 6mm Rem, .280 rem., 7mm RM, and I'm sure I probably missed a few. But IMR-4350 has been a very popular powder, for a large number of high power cartridges, for a very long time. But as RC said, it may not be the best choice for your application.

GS

I use almost nothing other than H4350 for bolt action 30-06 ammo but 4350 in the smaller 308 case or the low pressure 303 British is probably not a good idea. It's just too slow a powder for those applications IMO. Hodgdon doesn't even provide load data for 4350 in the .308 Win and when that happens there's usually a very good reason. (sorry)

All the manuals I have don't list data for the .308 with 4350 and in the 303 British only with the heaviest bullets. (174gr)

IMR4350 or any of the other 4350 burn rate powders are too slow for the M1 Garand's gas system, unless you use an adjustable gas plug such as the Schuster.

Don

I've played w/ R17 and 208gr bullets in .308 recently. H4350 is similar. I assume IMR4350 is similar, but never used it. Best results were w/ the bullet loaded very long. I'm not sure if it was the reduced jump to rifling or the increased case capacity. With a ~150gr bullet in .308, 4895 is my favorite.

USSR said:

IMR4350 or any of the other 4350 burn rate powders are too slow for the M1 Garand's gas system, unless you use an adjustable gas plug such as the Schuster.

Don

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+1 Too slow, could cause op rod damage.

But, its one of the most accurate powders I've used for 30-06 with 165 to 180gr bullets.

IM-4350 will work well in 303 and 308 Win especially with the heavier bullet eights. It is not suitable for the M-1 Garand.

I would stick with IMR 4895.

Good luck.

IMR 4350 is a wonderful powder for the 30-06

IMR 4350 is a wonderful powder for the 30-06

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True, but not in a Garand. Probably not the best choice in any semi-auto.

It along with H-4350 is my go to powder in my 30-06 bolt rifles.

IMR 4895 or 4064.

rodinal220 said:

IMR 4895 or 4064.

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Short and sweet. I agree IMR4895, H4895, IMR4064, along with AA2495 (Accurate Arms 4895 equivalent), AA2520 (Accurate's Ball Powder equivalent for 4895) are all great powders in the M1 Garand. IMR4895 (Improved Military Powder) was developed to load the 30-06 cartridge for the M1.

IMR4895, H4895 and AA2495 are ALMOST interchangeable and they act almost identically. All three have slightly different data and the data is not interchangeable. I wonder why Accurate didn't name it AA4895, but they didn't. According to the Hodgdon charts IMR4895 is slightly faster than H4895 which is slightly faster than AA2495. The Accurate charts show the exact opposite, that's how close all 3 are. If you stick with any of those powders you will produce accurate 30-06 ammo which is perfectly safe to shoot in the M1 without using a variable gas plug.

As a side note, I have found IMR4064 to be most accurate in my .308 Win ammo, but that might just be in my loads and rifles.

IME, H4895 is faster than IMR4895.

MtnCreek said:

IME, H4895 is faster than IMR4895.

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I think that's more dependent on which cartridge you're loading, how heavy the bullet is and what pressures you're generating.

Hornady's current reloading manuals have "service rifle" loads for the M1, M14 (M1A) and I think AR15 too.

I like 4350 and it works great in bolt action 30-06 rifles. I don't think I would be grabbing for a can of it for my M1 Garand, though.
RC said it best.

LGB

.303 and .308 data using IMR 4350 http://stevespages.com/page8a.htm

I use IMR 4895 for the M1, (where it works beautifully) and IMR 4350 when loading 30-40 Krag and my other 30-caliber bolt-action rifles.