Ratsmacker: I simply must ask - are you using the correct ammunition in those 5 (five!) Ruger Americans?
Because I, and my batch of high volume Ground Squirrel shooting friends, don't seem to have any difficulties along the line that you describe.
And I am sure I have run 4,000 rounds through my three RAR-V's myself - in 2,019 alone!
I don't understand?
By the way do you have any connection with CZ or savage arms?
Inexplicable and unbelievable.
Hold into the wind
VarmintGuy