Saad, your new information raises a whole new possibility. SEE, or secondary explosion effect is a well-documented phenomenon primarily applying to metallic cartridges. It is generally associated with low velocity / pressure loads made up with relatively slow-burning powders, loaded substantially below maximum.
Very basically, the powder starts to burn, pushes the bullet down the bore, pressure falls, burning slows or nearly stops, then almost the whole charge burns very fast or nearly detonates. I can easily envision this happening occasionally with blooper loads, although I cannot cite a proven example IN A SHOTGUN LOAD.
Whether it was a stuck wad or possibly SEE is of academic interest only. It seems virtually certain that the failure was caused by one of the blooper loads.
Last edited by Fred; 12/18/06 03:22 PM.
