Especially if you believe in the concept of 'proofing'.

My recently acquired Parker DH had, in recent times, a good many standard factory skeet loads run through it's damascus barrel set.

I consider it 'proofed' to 9,500 psi.

My 'service pressure' hand loads run 6,000 psi.

The trick, is to keep the shells sorted - they all look alike.

"The price of good shotgunnery is constant practice" - Fred Kimble