quadruple impossible penetration?
A back action lock is one in which the operating part of the lock is behind the hammer or cock. I know that they were used on more than one type of gun but the only one with which I am familiar is the twist barrel design rifle. The back action placed the operating part of the lock back out of the way to allow the barrels to rotate. If one were to use a front action lock, it would place the action forward of the hammer and in the way of the rotation of the barrels.
Personally no way, I couldn't live with the thought of my girl Calamitty getting hurt due to me. Last week she got out, (went UNDER, a LOW fence??) anyways in 5 yr.s this was a first and we finally after 1 1/2 hours later found her 2 1/2 miles down the road, (man to my relief she was okay:) so I could have rode her home, but it was icy in spots and no way did I take the chance. We had a nice long walk back home. It's not worth the risk, to the horse or rider. I've been riding for 18 yr.s know and I'm not saying in all the yrs. I've not made mistakes, cuz I have just like everyone. Thanks goodness the rider and horse are okay.