Originally Posted by
gnoahhh
So, what effect does high velocity/ high pressure loads with slow burning powder have on the gas operating system of that Garand? Common knowledge has it that slow burning powders give an extended pressure impulse that is very detrimental to the parts of the gas system, which is why the gov't used faster burning powders rather than slow burners for '06 ammo and we civilians are always cautioned to do the same. Are those super high velocity rounds operating within safe pressure parameters to begin with, and do you know that for a fact? Hate to see you come to grief with an heirloom.