Re: Colt Series 70 / Series 80
I bought a brand new-in-box 80-series Colt Combat Government. From the serial number it was made around mid 1983.
The frame cracked from the middle of the dust cover all the way back to the triggerguard (visibly) after approximately 200 rounds of Winchester 230 grain FMJs.
Reason may have been a flaw in the cast iron, it was visibly thinner in that area and had a small pit where the crack started.
Trigger pull was acceptable, finnish was gtg and overall "feel" was ok. Groupings were not bad, and slide-to-frame fit was fairly smooth. I was fairly happy with it besides the crack so I wanted a similar one.
I got it replaced and fortunately there was one like it left so I got that, shot 300 rounds and couldnt hit the broadside of a barn.
Slide-to-frame fit felt exceptionally loose even for a mil-spec, trigger was a "three-stage" with a lot of creep and weighed in at between 6-10 lbs, depending on mood I guess...
4-finger "spring" bushing had a loose fit in the slide.
Besides that the "beavertail" had sharp burrs cutting the skin between my thumb and hand.
Sent it off to a smith after verifying it at least hadnt cracked.
He confirmed groupings were way off, (at least it wasnt just me) and it had other issues as well.
Plunger housing was loose, had to be re-staked.(read; replaced)
Slide to frame fit was exceptionally loose and required some handywork.
Slide stop had been machined way off and had to be replaced.
Main spring housing was stuck du to burrs and basically just press-fitted in there.
One grip bushing was screwed in at an angle, stripping the threads and had to be replaced with an oversize one.
There was more but this is what I remember from the top of my head...
Thankfully it was ment to be a project gun and I wanted it for the steel quality.
I wont even start the firing-pin-safety-discussion, I know mines gone (removed part can be dropped back in if needed) and thats how I want it...
Cant wait for it to arrive back home, it will be a real nice piece once finnished, but next time I will try a Springfield