There are a few differences here.

On Savage;

First, the Savage Muzzleloaders are all proof tested to 1.3X the Maximum allowed pressure.

Second, it is unclear weather Toby blew his gun on purpose or not. However he told no one (other than Savage and Henry Ball)about it till Savage fired him. He then tried to blackmail Savage and Henry ball.

Third, people have shot ramrods out of their Savage's on top of full hunting charges and not blown their guns. Most have ringed their barrels though. To this day there is one known blow up of a Savage, that of Toby Bridges. No one knows what happened and he has changed his story so many times that no one knows what the truth is except Toby.

On CVA/BPI;

First, 10,000 psi is aproxamately 1/3 the pressure of a service load. There are Pyrodex loads that exceed 25,000 PSI. You can look it up in "The CompleteBlackpowder Handbook". The 10,000 doesn't even get you in the door when shooting muzzleloaders. That's about Round ball pressure.

Second, the Maximum load according to Hodgdon is 100 gr in 50 caliber. This means 100 gr of Powder or pellets and no more. Thus the liability for promoting heavier loads than that fall squarely on the gun companys.

Third, there are folks who are getting hurt with BPI guns. A few people have been hurt on the first shot out of a new rifle. 3 pellets and a 295 gr Powerbelt seems to be a popular choice.On the flip side, I've not heard of anyone getting hurt with 100 gr loads. If you own one I'd stay at 100 gr or under. I had one for a few years that I never shot more than 100 gr. out of. The problems seem to be with 3 pellet loads and a few rifles.