I was wondering if anyone has shot the 450 and had any input? I am going to get the AR15 in 450 and was trying to find out some info on it.
Shot a friend's 458 SOCOM, and I have one on order from RRA. I went with the 458, for 2 main reasons... better selection of rifle bullets (450 is a pistol caliber, fewer options for a handloader), and 2, it uses the same magazine as a .223. I have tens of .223 mags.
It basically kicks like a 20 guage. Follow up shots are typical for a 20 guage. Great accuracy at 75 yards. I consider it a 0-100 yard rifle for most tasks.