Master Po M1 Garand Reload Data

Because the Master Po website is flaky and we don't want to lose this info, I'm posting it here for posterity. This info was copied from the master po website that is showing a tracking virus from my web software.

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Recommended .30 caliber M1 loadings from the NRA


147 - 155 grain FMJ or HPBT bullets

IMR 3031 - 48.0 grains
IMR 4895 - 49.0 grains
IMR 4064 - 50.0 grains
W748 - 48.0 grains
AA2460 - 49.0 grains
AA2520 - 51.0 grains
AA2495 - 50.5 grains
H4895 - 49.0 grains
BLC-2 - 49.0 grains
H335 - 49.0 grains
RL-12 - 48.0 grains

165/168 grain FMJ, HP or SP bullets

IMR 4895 - 47.0 grains
IMR 4094 - 48.0 grains
AA2520 - 47.5 grains
AA2495 - 47.0 grains
H4895 - 47.5 grains
BLC-2 - 49.0 grains
H335 - 47.0 grains
RL-12 - 44.5 grains

173/175 grain FMJ or HPBT bullets

IMR 4895 - 46.0 grains
IMR 4064 - 47.0 grains
AA2460 - 46.0 grains
AA2495 - 46.0 grains
H4895 - 47.0 grains
BLC-2 - 48.0 grains

180 grain FMJ, SP or HPBT bullets

IMR 4895 - 43.0 grains
AA2460 - 46.5 grains
AA2495 - 45.5 grains
H4895 - 44.0 grains
BLC-2 - 47.5 grains
RL-12 - 41.5 grains



Master Po's comments

These loads only duplicate military spec. velocities for the given bullet weight, using commercial cases and powders. If you are using military cases, drop all charges by 2 grains.

If you are looking for accuracy, drop all charges by 1 grain and work up .2 grains at a time.

Master Po's Ancient M1 load secret

This is my personal M1 load I use in my CMP M1. It will shoot better than Master Po can. I worked this load up, as you should for your own rifle.

Remington .30/06 cases, flash holes deburred and weighed within 1 grain.
Federal GM210M Primers (Master Po has heard the horror stories of Federal match primers in the M1/M1A rifles. If you're squeamish or new to reloading, use Winchester Large Rifle)
47.0 grains IMR 4064
Sierra 175 grain MatchKing
Overall length 3.340 inches

This load, in my M1, duplicates almost perfectly the M72 match load specification with a very low standard deviation. Groups off the bench run 1 - 1.5 inches with the original 1945 barrel on the rifle. Of course, Grasshopper YMMV.

God Job!

147 - 155 grain FMJ or HPBT bullets

IMR 4064 - 50.0 grains is my cmp compensation load with 9 1/2 remington primer.

Great idea, thanks for posting so these won’t get lost in the depths of the internet

Go to https://archive.org/ and paste whatever URL you want to save into the "Wayback Machine" search bar at the top.
Likely it's already recorded, but if it isn't you will get the option to "save this page in the Internet Archive".

ight also toss them a few bucks if you think preserving flaky pages is worthwhile.

Here is the archive: http://web.archive.org/web/20000620055732/home.att.net/~Masterpo/M1load.htm
A few years ago Master Po quit updating the website as he stated he had too much other stuff current in his life. He held High Master in NRA Highpower and used to contribute on another forum, but apparently has other interests that keep him busy.

Thanks for the info. I have used Hodgdon powders H-335 IMR-4895 and Win. W748 with good results. I also use the CCI military primers No.34.

Here's the American Rifleman article on it from 1986 by John Clarke.

https://www.scribd.com/document/40852596/Reloading-for-the-M1-Rifle-J-Clarke

ken792 said:

Here's the American Rifleman article on it from 1986 by John Clarke.

https://www.scribd.com/document/40852596/Reloading-for-the-M1-Rifle-J-Clarke

Click to expand...

Thanks! I lost the magazine or threw it out over the years. Oldie, but still relevant unless you just have to use the newest whiz-bang powders or hate old stuff just 'cause.
It's not old; it's retro!
It's not used; it's repurposed. HA HA HA. Whatever Kiddo. We agree, just use different labels.

Melnic said:

Because the Master Po website is flaky and we don't want to lose this info, I'm posting it here for posterity. This info was copied from the master po website that is showing a tracking virus from my web software.

*************************

Recommended .30 caliber M1 loadings from the NRA


147 - 155 grain FMJ or HPBT bullets


H335 - 49.0 grains

Click to expand...

Cool, H335 I have and only used on bolts. Didn't think it was Garand compatible.

I'm hoping to do some testing soon to get a load dialed in for my cmp hra garand.

Hornady Manual #9 has H335 in the Garand section for 150gr bullets, 36.9gr to 46.4gr.

Recommended .30 caliber M1 loadings from the NRA


147 - 155 grain FMJ or HPBT bullets

IMR 3031 - 48.0 grains
IMR 4895 - 49.0 grains

Click to expand...

That's a bit hotter than I load my Garand.
Using IMR 4895 W/ 150 GR FMJ-BT with 45.8gr.
Shoots well and seems easy on the rifle

Linking to the thread on CMP update on Ammo specs

https://www.mdshooters.com/showthread.php?t=256365

Dear CMP Family,

The CMP advises to not use .30/06 ammunition in M1 Garands, 1903s, and 1903A3s that is loaded beyond 50,000 CUP and has a bullet weight more than 172gr. These rifles are at least 70 years old and were not designed for max loads and super heavy bullets. Always wear hearing and eye protection when firing an M1 Garand, 1903 and/or 1903A3 rifle.

This warning is an update/addition to the Ammunition section in the Read This First manual enclosed with each rifle shipment (M1 Garand manual-page 6 and M1903 manual-page 10).

Civilian Marksmanship Program

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