This is certainly my approach when attempting a powder for which I cannot come across data And that i normally Incorporate this with a chronograph maintaining a close eye on spikes or erratic numbers mixed with thorough assessment of your brass after Each individual shot. I do not recommend anyone abide by this and should they do, they do so at their own risk
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No. 290, (June-July 2014). The Powley Computer for Handloaders was a cardboard slide rule that utilized scenario potential, growth ratio, and ratio of demand to bullet bodyweight to compute the optimum powder and charge to get a offered combination of cartridge and bullet.
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For OP’s intent I'd toss fifty or so charges and weigh each to find out what sorry of statistical distribute I could be expecting. Then try out to locate a load exactly where that level of dispersion might be Risk-free after which evaluate precision.
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and i am lucky in that my cheapo Lee powder measure handles it pretty much. I positive would like it wasn't so prolonged and skinny, since the powder evaluate does want to grab hold of the stick anytime, but I've acquired to deal with it.
Opposition shooters know that the bullet’s placement inside the chamber throat/leade can drastically affect accuracy. Occasionally, I've experimented with different bulletseating depth to attain greater teams in my bolt actions, nevertheless the truly limited throat 223 loads with imr 3031 with the 223 Rem. cartridge situation severely boundaries just how much you can differ bulletseating depth, so I haven’t performed A lot of it.
I’ve attempted several of your swaging resources, but for me personally, the method is a hit-or-skip method. I typically desire chopping the crimp absent. If you select this route, don’t get aggressive and recut the pockets far too much. Only demo and error can instruct you just simply how much drive is required to cleanly chamfer the pocket lip instead of Lower away an excessive amount of the case content.
The gas port in a very piston-operated AR can be fixed but may perhaps include a dimensions adjustment function. In either AR action style, the buffer spring can get replaced to differ the spring charge over a minimal array.
Only clearly show this user all I can say is that this is just one very useful thread and I recognize the collective practical experience it signifies. I'm preserving all of it. many thanks shooters.
MoJoy99 said: anybody utilizing IMR3031 for reloading 223 in an AR platform? What do you think that of it? What exactly are your final results with it?
× just like a bolt gun, an AR has challenging Bodily options, but the design and Procedure tend to be more elaborate. In either a bolt action or an AR, the chamber and bore could possibly be Lower limited or unfastened. nonetheless, in direct-impingement ARs, the gas port diameter And just how significantly it’s Situated together the barrel are fixed.
it isn't an incredibly flexible powder, like 4895, nevertheless it's still capable of very good performance whenever you uncover the ideal combination of case ability, Functioning pressure and enlargement ratio.