Isn’t bullet velocity the culprit in barrel degradation? I see a listed muzzle velocity of 2830 fps. That’s not excessive.
Isn’t bullet velocity the culprit in barrel degradation? I see a listed muzzle velocity of 2830 fps. That’s not excessive
-——————————————————————————————It’s not that simple.
Generally “overbore” cartridges will have a shorter barrel life than none overbore? cartridges. Someone can tell me if right or wrong but I believe shot out barrels are more shot out chambers. Heat at ingnition and such...Plus unburned powder down the bore. Anyway, heat is the problem, not velocity. Which is not to say that velocity has nothing to do with heat. Or something....
Although, I don’t have any experience at 80,000 psi. Doubt anyone much has any either.
No.
Barrels wear out from the breech, where bullet velocity is lowest, not at the muzzle, where it's highest. The culprit is the high temperatures in the firing chamber, which creates a blowtorch effect on the leade and near riflings. And while it's in this superheated state, it gets bombarded with granules of flying gunpowder, like a sand blaster.