Use what the US ARMY uses
Bisonite used by Military builders 4 Snipers & the Rifles used by AMTU.
I have used all types of epoxies However Bisonite is 7 to 1 with
a powdered thickiner to use in those special areas. Im not sure who sells
it now just google it or look at
www.championchoice.com
If you want the best longest lasting tightest most used by the Pros.
If you were not trained my a Military Builder I can understand why
you never heard of Bisonite. Want a 6 Mos to almost a year then
gone is that ping & the X Ring is just a day dream use Epoxies.
Don't take me wrong I like the many types & uses for Epoxy. It
was not made for M14s/M21s , M24s , M40s & some that have no
names. Take a PSS bed it with Bisonite, & you will be surprized at your
Groups & cold shot repeat. That makes a real differance when
others are shooting back at you in the real World.
Mike