Home Forums Hunting & Shooting AR and Tactical Rifles Had a "boom" yesterday

Known good rifle.

Blew the magazine out the bottom, blew the mag bottom off. Bolt hard stuck, case is still in there. See pictures.

223 rifle shooting reloads with 55 Hornady SP over 24.7 grains of TAC. Range brass (which might be the problem?), CCI 450s

Barrel does not seem bulged (as in obstruction), and it would be hard to fit too much TAC in a 223 case, especially under a 55 grain bullet.

Barreled upper is sitting at the 'smith's now waiting for him to have a look.

Thoughts on cause? Thoughts on breaking the rifle down to do forensics?