shibiwan Posted August 26, 2014 Report Share Posted August 26, 2014 (edited) Trying to figure out some 300 AAC reloads for a buddy. He got these guys from another of his friends. They shoot but don't cycle properly. I've taken apart and reverse engineered my fair share of bullets and haven't seen anything like this being done on a 300 AAC. Probably explains why those rounds don't shoot for poop. What I've got so far: Load #1 - Federal 180gr Trophy Bonded Tip bullet (who even sells these? Never seen them available) - 5.56 converted case - 9.5 gr of a super coarse extruded powder. The load was so compressed I had to "dig" it out with a sharp tool. Load #2 - 147gr FMJ-BT bullet - 5.56 converted case - 18.5 gr of the same powder. Again the load was super compressed and had to be dug out. Here's a pic of that crap. Anyone have any clue what powder the guy's using? IMR4227? Doesn't look like it.... thoughts? Edited August 26, 2014 by shibiwan Quote Link to comment Share on other sites More sharing options...
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