mmbasser
20th November 2008, 18:20
Hello, first post after lurking a while.
I recently dug out my M1911 that I refurbed 15yrs ago from what could only be described as a beater. At that time I purchased a match barrel and a new slide. I do not recall doing any filing on the slide or upper/lower barrel lugs....polishing yes, but not much material removal. It passed the timing tests that I knew about at that time, so I figured I was ok.
I started to recheck all my previous work starting with barrel fitting. I found that the vertical lug engagement as best I can measure is between .055 and .058. I measured both the slide lug cuts and the barrel lugs, and the engagement measurement seems possible, but from what I've read in the last few weeks, 0.050 is considered 100% engagement.
At lock up, I can push down the barrel just a slight amount, so I don't have real solid vertical lockup on the SS pin. Also, it's quite obvious that the firing pin is hitting low on the primer.....so that leads me to the question. According to Kuenhausen(SP?), this condition may require a new oversized barrel that can be hard fit, and centered on the firing pin hole.
Are there any other options short of welding & recutting something?
Thanks
PS the engagment was measured using 1911tuners popsickle stick method described in one of the sticky posts. ;)
I recently dug out my M1911 that I refurbed 15yrs ago from what could only be described as a beater. At that time I purchased a match barrel and a new slide. I do not recall doing any filing on the slide or upper/lower barrel lugs....polishing yes, but not much material removal. It passed the timing tests that I knew about at that time, so I figured I was ok.
I started to recheck all my previous work starting with barrel fitting. I found that the vertical lug engagement as best I can measure is between .055 and .058. I measured both the slide lug cuts and the barrel lugs, and the engagement measurement seems possible, but from what I've read in the last few weeks, 0.050 is considered 100% engagement.
At lock up, I can push down the barrel just a slight amount, so I don't have real solid vertical lockup on the SS pin. Also, it's quite obvious that the firing pin is hitting low on the primer.....so that leads me to the question. According to Kuenhausen(SP?), this condition may require a new oversized barrel that can be hard fit, and centered on the firing pin hole.
Are there any other options short of welding & recutting something?
Thanks
PS the engagment was measured using 1911tuners popsickle stick method described in one of the sticky posts. ;)