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Posted: 1/29/2014 4:40:43 PM EDT
| I would like to shoot 175 grain bullets (SMK, Nosler, or Berger OTM's) in a RRA LAR-8 Varmit w/ 26 inch 1:10 twist barrel. I would like the hive's opinion on the optimum powder, available or not, for this rifle. My thought was 4064, but I'd like to have the opinions of those who load for this type of gas gun before I buy. Thanks. |
| IMR 4064, Varget, and IMR 8208 are all good choices. Your gun and loading methods will pick the winner. A friend that reloaded pistol about 20 years ago recently got back into reloading and, on his second try, produced a 1/2 inch group from a DPMS LR-308 at 100 yards with 175 gr SMKs and Varget .... |
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I've had decent results with vihta vouri N-140 (better than N-540) and 155, 168, 175 grain bullets… but I've had better results with an AR-10T shooting lighter bullets -- 125 grain Bergers with a slightly faster burning powder such as IMR-4895. This is an approach you may wish to store in your memory for when you get tired of the 175 grainers.
ETA: Start with IMR 4064, since that is just about the only thing available, at the moment! |
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IMR-4895
H-4895 IMR-3031 IMR-4064 Varget RE-15 N-140 N-150 or if you prefer ball powders: WW-748 AA-2460 AA-2520 H-335 .308 works well with all of these powders, it's an easy cartridge to find good loads for. I use Varget, RE-15, N-140, IMR-4895 or H-4895 because I prefer extruded powders. IMR-4064 is one of the best powders but it requires hand weighing each charge because it meters so poorly. That alone is enough to dissuade it's use for anything other than long range competition, which requires hand weighing each charge anyway. |
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