pwoller wrote:Thanks Hoot. If I had to pick 2 loads based on the target results they would be 36.5 and 37.0. The shots out side of the 2 touching are almost completely horizontal. Should I load up 10 at 37 and see what it does? Without the magneto on the gun.
A true test of a suspected good load is repeatability. Not just groups but also velocity SD. The latter reflects a good balance between the gun, the recipe and the reloader's attention to detail. Good, repeatable groups are testing you, the shooter. AR's are not like bolt actions. I can pick up a bolt action after a month or two offline and it'll shoot just as well as when I last handled it. IMHO, AR's require constant re-familiarization with what it takes to keep them honest. Obviously, much is like riding a bike but when it comes to precision performance, like playing a musical instrument well, it requires constant attention. At leasty it does for me. If you load up 10 of those 37gr rounds, try shooting the first 5 for velocity. That should warm you up and relax you to where you can give a good 5-shot group a go without the magnetospeed. You want numbers that are statistically significant. Some and for good reason, will argue that 5-shot groups are still a small sample. I don't know about you but I know that I'm not a rich man and those bullets aren't cheap. Come to think of it, reloading isn't cheap anymore.
Hoot