Yep, unwarranted assumptions. Just like the quail plantation's ban.

He does mention the most frequent cause of bursts as obstructions, and that's no doubt accurate.

The second most frequent cause is undoubtedly improperly loaded shells, not weak barrels incapable of handling standard pressure.

Note that I didn't say improperly reloaded shells. It matters not who does the loading as in the case of the new Italian made and proofed gun that blew with factory shells. No, you won't hear specifics since the man's 'settlement' prohibits him discussing it.

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