" It is stronger than the Contender & others such as the Trapdoor."
Sorry, don't mean to hi-jack the post, this is a pet peeve of mine! My Dad has collected Trapdoor Springfields since I was a sprat, and I always bridle at the horse pucky that they have a "weak" action! Due to his owning ,and now my owning a dozen or so at any given time we got the pleasure of shooting them.....a lot. I killed my first deer with an old 1884 someone had sawed off to carbine specs and jb welded a set of Remingtonon M600 sights on it. The bore looked like a sewer pipe, but the little western Oklahoma buck that "caught it" in the boiler-room didn't know the difference from a new Weatherby!
Any way, what i'm getting at is That when the Army was phasing in the Krag rifles and phasing out the trapdoors, they re-barrelled a fair number to the 30/40 Krag ctg to see if it would be feasable to issue them to geurilas, or sell them through the CMP And they were able to handle some pretty high pressure loads, in fact, they tried to do some "destructive" tests increasing the powder charges and blocking the bores by degrees untill the actions "let go" (failed) and something like 60% of the rifles required a full case of ball powder compressed under a steel core bullet with another 30 cal bullet driven midway down the barrel to stop them.and even then, the new barrels blew out and ruptered just ahead of the chamber.the actions held!
The trapdoor is made of steels considered obsolete nowdays, but if you look at how it works, it would take a LOT of pressure to shear that massive wedge, and the "door" would have to buckle to open without shearing it which would leave a huge gap to vent the pressure.IT WOULDN'T BE FUN BUT IT IS SURVIVABLE!
Is every trapdoor as strong as a Handi? No! Are some Trapdoors stronger than some Handi's? Almost certainly! Are Handis,And trapdoors asa strong a design as the Mauser 98 Absolutely NOT!
My opinion on the original question is like my friends, Start on the low side of safe and work up CAREFULLY from there and back off at the first pressure signs I usually find that the recopil shuts me down long before I see pressure signs these days.
JMHO
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