non +P factory load set back

[primlantah]

I know that chambering a round many times will cause set back. How many of you really think of this as a safety concern with factory non +p loads? You increase pressure by reducing OAL but would this pressure be greater than whats achieved with +P?

 

[Steve C]

IMO the increase in pressure from shortening the OAL is minimal for most powders and cartridges. Most of the concern is generated from the warning regarding OAL in the Speer manual on 9mm loads that doesn't reference the powder being used. A good many powders can be or even must be loaded compressed without any pressure issues.

When rotating out old carry ammo I've personally shot quite a few rounds of "premium" jacketed HP ammo both standard and +P that the bullets have been set back due to frequent chambering. I have never seen any typical pressure signs, even anything indicating any pressure difference between the set back rounds and the others that where not set back (and I've looked for it).