I just finished watching the "Modern Rifle Adnentures" episode on Florida Gators with the AR platform, and the older dude was using an R15 in 450B.
He said he was using the ammo made by Remington that utilizes the same bullet that is used for saboted shotgun slugs.
Have any of you guys seen any such Remington 450 ammo advertised anywhere, or heard of any load data for their factory loads.
I think it's something we need to investigate ! !