I'm taking the plunge and am getting into reloading major military rifle calibers with hard cast lead. Those calibers are 30-06, 308, 7.62x39, 6.5mm Swede,7.5mm Swiss, 8mm Mauser.
I was wondering if there's a preferred powder for these - I know you can load just about anything with Unique, and some loads are listed for 5744, but is there a particular reason for a particular powder I should be ordering? I plan to load to the higher end of practical velocity - not just squib/"gallery" loads. The bullets I'm looking for are gas checked. I want to order what I need "right on the first time" so I don't pay hazmat over and over while I experiment.
Advice is appreciated. Thanks!
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November 18, 2008, 10:40 AM
You need to talk to the people over at Cast Boolits. There is more info in that site than we can ever use up. Millions of years of experience. Talk to them.
November 18, 2008, 10:43 AM
Ditto. Going to be using cast lead in my 7.62x39mm too, when I get around to it.
November 18, 2008, 10:44 AM
2400 will work well in most of them and will get you to velocities of 1800+ fps (this is the fastest I've pushed cast rifle bullets).
6.5x55 in swedish mausers often times doesn't like 2400 for some reason. Unique seems to work well with it though, but your velociites aren't going to be much over 1500 fps. A fast burning rifle powder might be better yet, though I haven't experimented with this yet.
7.62x39 I have no experience loading cast for, yet.
November 18, 2008, 11:10 AM
5744 Info (http://www.accuratepowder.com/data/5744.htm)
November 18, 2008, 11:28 AM
Pick up a Lyman reloading book it will give several different powders for each bullet design. Then start testing the load combinations in your firearms until you achieve the level of accuracy acceptable to you.
November 18, 2008, 01:12 PM
Lyman book says XMP-5744 is the "Best Accuracy" load in many of the calibers you mentioned.
It will also give you all the velocity a cast bullet will tolerate, and then some.
IMR-4227 is another one worth investigating.
November 18, 2008, 02:15 PM
I've loaded gas checked Lee 312-155 bullets for 7.62x39 with both 2400 and AA1680.
haven't spent enough time with this to discover a load that groups well.