I purchased this from a trusted gun shop. Took this in trade 200rds fired(gunsmith personally knew the customer).
Have used Gemtech, Fed blue box bulk, American Eagle, Rem Golden bullet and Win. 40gr truncated cone HP.
I have 5 & 10 rd mags.
When the mags get 3-4rds from empty as the bolt catches the base of the bullet it pushes the nose of the bullet down and hits the bottom of the chamber stopping the chambering process.
Only does this for the 3rd and 4th rd from empty,
My gunsmith says he has a rubber tool with embedded diamonds and wants to slightly round the bottom of the chamber opening to help feeding.
Any other options available? I'm stumped about what to do.