Re: Building an AR-15 for Coyote - 24" barrel?
I own AR's in 16, 20, and two 24" barrels. All are 1:9. One 24" is a heavy DPMS bull that I use for 300 yards eggs shoots and target competition, and it holds sub .5MOA at 300 yards and at 500 yards will keep 69grSMKs in a 3" circle nicely. Its very heavy and not practical to lug around for the type of coyote hunting I do. For the longer range varmint hunting my 24" R15 varmint with a 24" barrel is equally accurate but with the triangular barrel is a manageable weight , roughly 9 pounds. Light enough for off hand close in shots, but very stable for precision long range shooting. For the closer hunting I like the 16 and 20", but for the longer shots I can see a very noticeable difference in accuracy and wind drift with the longer tubes and extra velocity, 250+FPS. My buddy uses the 24" Bushmaster with the fluted barrel, also a good choice that has manageable weight, and excellent for precision work at the longer distances. Accuracy is similar to my R-15. IMO.
"Let us speak courteously, deal fairly, and keep ourselves armed and ready"-T. Roosevelt