03-19-2013, 01:28 PM
LRRPF52 Wrote:Ooooh. Now we're talking. I like that barrel, 18" RLGS. All your other components are top-notch as well. What is the gas port diameter? That barrel will run more optimally with the 120-130gr class of bullets. 107gr and 108gr should run fine too, as they have longer shanks/engagement surface with the rifling to help build pressure.
It will be interesting to see what velocities you'll get with that 18"/RLGS.
I'm not sure how to go about measuring the port diameter. Are there gauges
or can it be done with my calipers?