There are a lot of articles and discussion forum threads on barrel twist rate for AR-15s. So why am I writing one? Well, some of the information on the web is very wrong. Additionally, this closes out comment threads we've had here touching on this topic, EMail exchanges I've had with readers, and personal conversations I've had with shooters and friends about this subject. It's natural to put this down in case anyone else can benefit from the information. Or you may not benefit at [read more]
According to gun writer Chuck Hawks, the .270 made its debut in 1925 and was created to challenge the popular .30-06. (The .270 is a necked down 30-06). Famous Outdoor writer Jack O’Connor helped make the .270 popular when he recounted the .270’s lightning-quick kills at 300 yards! At that time the .270 was considered to be the flattest shooting big-game round in the world, according to Hawks. The .30-06 spits a 180 grain bullet at 2,700 feet per second. The .270 releases a 130-grain bullet at 3,140 feet per second. Equally impressive, according to the ballistics students, is the .270’s capacity to sustain its velocity down range: 130 grain bullet registers 2,320 feet per second at 300 yards!
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I also like the .270’s relative civility when it comes to recoil. A fellow elk hunter, who hunts with a Winchester .300 Magnum, always leaves the shooting range with a bruised, tender shoulder after zeroing his cannon. He also rations his rounds due to the cost. Granted, I’ll stick with him during a grizzly-bear charge, but the rest of the time give me the .270.
I have to say that I like the “relative civility” when it comes to recoil as well (as I have written before). The 0.270 is a sweet round. I can shoot a 12 gauge shotgun for hours (here substitute a large game round), but then my shoulder and chest complain to me for days.
I don’t know if anyone else has problems with this, but I lift weights, and with a somewhat enlarged chest there is little real “shoulder” left in which to fit the butt of the rifle (or shotgun). It simply sits across my chest / deltoids. The last time I shot clays I had a bruise as straight as a board down my right pectoral (I am right handed but left eye dominant, which is yet another problem in that I still shoot with my right eye).
I like moderate recoil, which is one reason I like carbine rounds. I consider the 0.270 to be a large game round without the kick.