On thing that I had to learn from my own that I would like to share is. Invest in a chamber brush (under $5) and clean that chamber with some solvents of a new barrel real good! I had just built a Adams Arms piston build from the ground up and was shooting steel cased Russian ammo and was getting shells stuck every 10 to 20 rounds.
SA XD-40 V10 (Ported) 40 S&W
New Frontier Stripped Lower
RRA LPK (Lower parts kit)
More to come....
"Don't thik of it as 'Gun Control', think of it as "Victim disarmament". If we make enough laws, we can ALL be criminals".