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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
308 win AR platform reloading question
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<blockquote data-quote="stirner" data-source="post: 1771663" data-attributes="member: 44287"><p>You will find that the magazine is the limiting factor for COAL. I have yet to find a mag that will let me load a round long enough to come close to the lands, unless I use a round nose bullet. Some things that will help are to use ball powders, cup and core bullets, and rout the magazine. If the mag is a double-stack, you can cut out enough of the mag to accomodate about 4 cartridges before the mag starts to bulge, and becomes difficult to insert into the rifle. The way I did it was to load 4 rounds in the mag, and mark the front of the mag just a little wider than the bullet tips and a little deeper than the 4th round. The idea here is to remove as little metal as possible to allow loading a bullet longer than a closed mag would allow.</p><p></p><p>I have built a few ARs, and put an adjustable gas block on all of them. There's no sense in developing a fast, accurate load, only to not be able to properly cycle the rifle. Been there, no fun.</p><p></p><p>I have found that ball powders offer high load density. One of my favorites is Leverevolution. W748 and A2520 work well too.</p></blockquote><p></p>
[QUOTE="stirner, post: 1771663, member: 44287"] You will find that the magazine is the limiting factor for COAL. I have yet to find a mag that will let me load a round long enough to come close to the lands, unless I use a round nose bullet. Some things that will help are to use ball powders, cup and core bullets, and rout the magazine. If the mag is a double-stack, you can cut out enough of the mag to accomodate about 4 cartridges before the mag starts to bulge, and becomes difficult to insert into the rifle. The way I did it was to load 4 rounds in the mag, and mark the front of the mag just a little wider than the bullet tips and a little deeper than the 4th round. The idea here is to remove as little metal as possible to allow loading a bullet longer than a closed mag would allow. I have built a few ARs, and put an adjustable gas block on all of them. There's no sense in developing a fast, accurate load, only to not be able to properly cycle the rifle. Been there, no fun. I have found that ball powders offer high load density. One of my favorites is Leverevolution. W748 and A2520 work well too. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
308 win AR platform reloading question
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