Here is some data from another web site, FYI. I pulled it from the following link:
Reloading Stuff
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
Cases:
*The loads listed above use comerical cases* WW seems to be the best cases. If yhou are using Millspec cases you should reduce the powder charge by 1.5 Gr and work up slowly.
Primers:
I also recommend the use of WW large rifle primers due the fact that they are almost as hard as mil spec. The CCI #34 is a mil spec primer but, it's a MAG primer as well and should be used with ball powder. Federal Gold Medal Match primers are very good primers but, some say they are are very soft and should not be used in a "M" gun due to the fact of SLAM FIRES!
Powders:
As far as powders go IMR 4895,H4895 and IMR 4064 are great powders to use with the M1 in .30 cal. Some use Varget,RL 15 and VV140 but, your results may vary. A word to the wise: The old rule of thumb on powder is nothing faster than 4895 and nothing slower than 4064. Good words to load by.
Bullets: The 168 Sierra Match King and the 175 Sierra Match King are the two bullets I would look to if I was looking to make "Match" ammo for a 1-10 twist GI rifle. The 168 is a 300 meter bullet with a older designed boat tail. It still works great but, the 175 MK is the way to fly. The BC is something like 19% better and that translates to less knob twisting at 600 yards or so. The 175 Mk is basically a redesigned 173 gr GI match bullet built to stabilize in a 1-12 twist barrel. I would not shoot bullets any heavier than a 175gr in a GI gun that I really cared about. People used to shoot the 180 gr MK but, thats before the 175mk came out.
Match Loads:
The old standard "M72" LC match ammo shoots pretty good in GI rifles and Federal Gold Medal Match shoots really good in some rifles but, if you want to come up with a load that shoots like a house a fire try these out for size. * I can not profess to be the guy who came up with these super duty match loads. The M1 has been around a long time now and there really is nothing new as far as loads go. Sure the VLD bullets and new designer powders have come out and made things better? Right?.......Right. For my money these will work all day every day.*
175gr MK
WW large Pri
WW case
47gr 4064
3.340 OaL MAX
168 MK
WW Large Pri
WW case
48 4064
3.340 OAL MAX
4895 works just as well in these loads just adjust the charge per the chart above. H4895 never hurt a thing either.
CCI #34 Mil Spec Primers
Hey Guys, Just a heads on Mil Spec Primers. I have been using the CCI#34 Mil Spec (Large Rifle) in my N.M. Garand and I have found out something I think you should know. The Mil spec Primers are hard MAGNUM PRIMER best used with ball powder or in any other load that you need a MAG primer. I have used them with IMR4895 and IMR 4064 and they tend to burn HOT! CCI says about 25% hotter than a normal large rifle primer. They do work great as far as preventing slam fires and I am sure they work well for their application just not so well with stick powder. Here it is from CCI:
CCI® No. 34 and No. 41 MILITARY RIFLE PRIMERS
Military-style semi-auto rifles seldom have firing pin retraction springs. If care is not used in assembling ammunition, a "slam-fire" can occur before the bolt locks. The military arsenals accomplish this using different techniques and components—including different primer sensitivity specifications—from their commercial counterparts. CCI makes rifle primers for commercial sale that matches military sensitivity specs that reduce the chance of a slam-fire when other factors go out of control*. If you're reloading for a military semi-auto, look to CCI Military primers.
*Effective slam-fire prevention requires more than special primers. Headspace, chamber condition, firing pin shape and protrusion, bolt velocity, cartridge case condition, and other factors can affect slam-fire potential.
FEATURES & BENEFITS:
Mil-spec sensitivity
Initiator mix optimized for ball/spherical propellants
Available in large (No.34) and small (No. 41) rifle
Use the same data as CCI Magnum primers
USAGE:
Military-style semi-automatic rifles
_________________
Another useful link is here:
M1 Garand loads - AR15.COM
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.