Looking at the adi data for bm2, 2206h and 2208 all popular powders in the 223 if the charge isn't reduced you'll be somewhere between 5 and 11 percent over maximum just swapping the projectile. Add to that the projectile is 20% heavier and has a larger bearing surface and I'd approach with caution. I realize the powder is unlikely to be one of those 3 but the principle of reducing charge with increasing weight still applies.
Bookmarks