PinnedAndRecessed
member
- Joined
- Aug 10, 2004
- Messages
- 1,541
Went to the range today with two 45s: a highly modified Mark 4/Series 70 and Sig 220ST. I used reloads (230 grain SWC plated + 6.0 grains Unique) and PMC 230 round nose (also plated).
The Sig functioned flawlessly.
The Colt, however, jammed five times out of 150 rounds.
Twice the cartridge jammed on the feed ramp.
Three times the spent case was turned 180 degrees with the mouth of the case against the firing pin hole: twice with the reloads and once with the PMC. It's never happened before.
Any suggestions? And don't tell me to have the feed ramp lowered. It's already got that. The slide has also been tightened, 3.5 pound trigger, sold bushing, ambi safety, etc.
Thanx in advance.
The Sig functioned flawlessly.
The Colt, however, jammed five times out of 150 rounds.
Twice the cartridge jammed on the feed ramp.
Three times the spent case was turned 180 degrees with the mouth of the case against the firing pin hole: twice with the reloads and once with the PMC. It's never happened before.
Any suggestions? And don't tell me to have the feed ramp lowered. It's already got that. The slide has also been tightened, 3.5 pound trigger, sold bushing, ambi safety, etc.
Thanx in advance.