years ago, doc drew and others told us that when a smokeless shotgun cartridge is detonated, the maximum pressure created by that explosion, occurs at the beginning of the forcing cones, directly in front of the chambers...and as the shot column proceeds down the barrels, the pressure decreases...

and if that be true, then it makes sense that the barrel wall thicknesses directly in front of the chambers, are critical for safe shooting...

anyone here wish to share any guidelines that they follow re minimum barrel wall thicknesses in front of chambers, for safe shooting?

Last edited by ed good; 07/08/22 04:35 PM.

keep it simple and keep it safe...