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Rifles, Reloading, Optics, Equipment
Reloading
need help w/ M1A
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<blockquote data-quote="Kevin Thomas" data-source="post: 480488" data-attributes="member: 15748"><p>AK,</p><p> </p><p>Correction on Nomad's last, they'e still using RL-15 in the M118LR, and will no doubt continue to do so as long has ATK has the Lake City contract. The IMR 4895 was used way back when Remignton had the contract, and they still owned DuPont, who in turn made the IMR powders.</p><p> </p><p>Bottom line here though, is they're both good and they'll both do a fine job for you. As will WC-750 (non-cannister powder used when Olin ran the place, very similar to W-W 748), Varget, or 4064. Or, a bunch of others in the same burning range. The key to loading a Garand or an M1A/M14, is to use nothing heavier than 175 grains, and nothing slower than the powders in the 4895/4064 burn range. He's absolutely right that the 40.5-42.0 grain charge of 4895 under a 168 was THE load back in the day. If you polled the entire line of shooters at any given match, I'll bet you'd find 95% of them would be using this combination. The 5% who weren't, were probably newbies who just hadn't gotten the word yet. </p><p> </p><p>Incidentally, there is no specific load/charge weight for any of this ammo where the military stuff is concerned; they're loading to a performance standard. They require 2,580 fps @ 78 ft for the M118LR, which translates to about 2,625 fps (or thereabouts), and 2,550 fps @ 78 ft for the old M852 (168 grain Match) load. As powder lots vary from one to the next, whatever charge weight was required to reach that velocity standard was the charge weight they used. Seen them vary by a grain and a half or more from one lot to the next, with both lots giving identical velocites. Call it "somewhere" around 41 grains and you'll be in the ball park.</p><p> </p><p>Sorry for the delay here, been away for the past few days.</p></blockquote><p></p>
[QUOTE="Kevin Thomas, post: 480488, member: 15748"] AK, Correction on Nomad's last, they'e still using RL-15 in the M118LR, and will no doubt continue to do so as long has ATK has the Lake City contract. The IMR 4895 was used way back when Remignton had the contract, and they still owned DuPont, who in turn made the IMR powders. Bottom line here though, is they're both good and they'll both do a fine job for you. As will WC-750 (non-cannister powder used when Olin ran the place, very similar to W-W 748), Varget, or 4064. Or, a bunch of others in the same burning range. The key to loading a Garand or an M1A/M14, is to use nothing heavier than 175 grains, and nothing slower than the powders in the 4895/4064 burn range. He's absolutely right that the 40.5-42.0 grain charge of 4895 under a 168 was THE load back in the day. If you polled the entire line of shooters at any given match, I'll bet you'd find 95% of them would be using this combination. The 5% who weren't, were probably newbies who just hadn't gotten the word yet. Incidentally, there is no specific load/charge weight for any of this ammo where the military stuff is concerned; they're loading to a performance standard. They require 2,580 fps @ 78 ft for the M118LR, which translates to about 2,625 fps (or thereabouts), and 2,550 fps @ 78 ft for the old M852 (168 grain Match) load. As powder lots vary from one to the next, whatever charge weight was required to reach that velocity standard was the charge weight they used. Seen them vary by a grain and a half or more from one lot to the next, with both lots giving identical velocites. Call it "somewhere" around 41 grains and you'll be in the ball park. Sorry for the delay here, been away for the past few days. [/QUOTE]
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