Range time and bullet selections
I had the opportunity to get out to the range again this week. I tend to bring the same bullet weights with me to firing ranges whenever I’m shooting my ARs because there can be really big differences in bullet trajectory when shooting out to 600yds. There is also a very big difference between bullet drift with just a few extra grains of weight. I’ve pulled the trigger on 150gr FMJ bullets out to 500yds that missed targets just depending on whether or not I fired during a wind gust or not. It’s really a lot of fun to shoot distances because you find out that it’s not all about how well you hold a gun down and how well you pull the trigger. Timing is something that really plays a factor when shooting into the wind. I use to shoot at a range that had a wind that blew from right from 100-300yds and when you got out to the 400-600yds, the wind blew from the left.
Today I was testing out how well an M4 could shoot 75gr bullets and tested the difference between a 1-7 twist and the 1-9. I normally shoot a lot of the M855 ammo for target shooting, just because it’s so darn accurate, but IMHO it is not the type of round that any civillian should consider using for self defense. The round penetrates entirely too much for urban environments and out of an M4 does not perform as well as 55gr ball ammo. I have noticed considereable accuracy differnces in my 1-7 twist rifle vs the 1-9 and I am a firm believer in that the 75gr HPBT is a better round for th M4 rifles even if you are using a 1-9 twist. I have tried swapping out some of my AR 15 Uppers to different bullet twists and I still think the shorter the rifle, the faster the twist and weights should be.