04-24-2012, 03:18 PM
I don't think it will necessarily be too much trouble. A 24" barreled rifle would be used for special and limited applications. No different than a carbine vs. a precision rifle presently being used. A major advantage of a single caliber would be the loads could interchange if necessary. Chamber pressures wouldn't change that much from a load optimized for a SBR vs. a load optimized for a SPR/ precision rifle. There may be issues with over/under pressure through the gas operating system but that can be addressed.