Originally Posted by TheBob_1
Today, I had the exact same problem with the same ammo (PMC) in a brand new GP100. Okay, I had put thirty rounds of 38 thru it before - hardly enough to cause any buildup.
The PMC 357 was so tight I could barely close or rotate the cylinder, but all cartridges slid in and out of the chambers easily - the gun is too new and barely-used to be fouled and was even cleaned after the few 38's that had gone thru it.
Anyhow... I assumed 357 ammo was meant for a 357 revolver, so I went ahead and pushed it -- That is, I manually cocked the gun (SA required significant force) and ran the 6 PMC's thru it. Then shot six 38's easily (DA and SA were both fine), then loaded six more PMC's. Same problem: WAY TOO TIGHT!
Has anyone contacted PMC? I think I will, but would like to know what others have learned and experienced before I do. Hate to send the GP100 back for any modifications - especially to looser tolerances, and especially if it is the ammo's fault!
Bob(that is your name I hope, sry. If not): Which PMC ammo (what color box, bronze, silver) ? We have lots of PMC Bronze & Gold Match 9mm, and Bronze and Silver 38/357? Not to say it can't happen, and Ruger QA/QC is among the best in the industry( and I'm not just saying it because I own Rugers and we have a Forum member who works there), but it COULD be mismatched spacing with your cylinder, ( Read about this in my GunSmithing coursework)... This has happened as you can see, with some 20+ Y.O. Ammo we had that belonged to my late FIL for his J-Frame and K-frame Smiths,...
Also, if the ammo was stored improperly or transported through "Heat" for an extended period, lead bullets can soften just a bit,..but it's enough to cause a "mismatched tolerance," as what happened with 2 and a half boxes of Winchester super X 38 round nose,...20+ years of sitting in a warm attic storage space, on a top floor 3 story condo Apt., "dis-formed" The ammo so it would not fit in any 38 cylinder!
Not to say your ammo was old,..or your gun is warped. Have a competent smith look at it before you shoot with it again.
Funny aside: I once asked Joe( my FIL) after a range trip " why do you shoot with range ammo, and then after 60+ rounds and a cleaning, put back the same 5 rounds you had in the gun before the range? If it's like some old Cop superstition let me in the the great secret please" " No secret, these are silvertips, they are 5 of the last 10 I have" "And you can't buy any more? Last I heard every GS on Long Island sells them or can order them." I said. " I'm retired, you know how expensive they are now?"
By the way, when Joe passed a few months after we were married, he left me the 10 silvertips, not his 38(which went to my wife of course) not his Model 10 or his model 19,(my BIL) but I got his 1911, and 320 rds. of 45, and 10 38spl. silver tips....