All guns are tested from the factory to shoot 5 rounds of loads that are 3 times the max load advertised. would I do this? no. +P is the highest Ill go.
I am sorry - I find it highly incredible that factory guns are tested at 3x max load. depending on the round, standard pressures are 10,000 -50,000 psi. Those guns are built for those pressures. You're talking about overbuilding them to take up to 150,000 psi and then selling those guns.
It's metallurgical nonsense. Barrels will split, locking lugs blow off, bolts ejected, actions explode.
Most kabooms from reloading happen when people mix up powders. Put fast burning pistol powder into a rifle cartridge, bam. Those pressures probably spike to 200-300% normal. Another screw up are squibs and then a normal round.
Where did you pick this up? Do you by chance have a credible source for this?
I'll also point out that the gun industry is largely unregulated and pays its engineers extremely poorly.
Every single gun manufacturer out there voids their warranty if and when hand loads are ever used. Their guns are warrantied only with factory SAAMI spec loads and for good reason.
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