scottjua
Master Member
These have been what I've been working on the past month or two non stop.
I had some real issues with these guns in particular, as it seemed each one needed replacement parts and special attention. There was a LOT of work to get them to function correctly and these were easily the hardest ones I've done so far, aside from my original first one.
One just needed some new parts as the originals were worn to death, and that one functioned the best when those parts were replaced.
One of them had been rebarreled and re chambered, and needed a total day's worth of careful filing, and metal work. It was as if the person who did the re-bore didn't bother to test if afterwards, as the chamber had sharp edges and the rounds wouldn't feed. there was some solder built up around the edges of the new chamber and the original steel and it was nasty. I had to re profile the feed ramp and chamber completely, and polish the entire feed and chamber. OMG it was a pain.
The final one's bolt looked as if the bottom locking lug catches had been used as a hammer. It would not smoothly let the bolt feed, and got caught on tow long burrs every single time. The bolt is hardened and even with super sharp carbide end mills is was slow going. A high grade file would NOT work. Only carbide... It also was a wartime commercial and the machining on those from the factory was pretty rough. There was a 100 year old burr inside the bolt guide groove and that needed filing down and reshaping too.
I polished all of the guide surfaces for the bolts on all of them too.
After MANY rounds and range trips I finally got them reliable. Thankfully...
That said, they're done.
I had some real issues with these guns in particular, as it seemed each one needed replacement parts and special attention. There was a LOT of work to get them to function correctly and these were easily the hardest ones I've done so far, aside from my original first one.
One just needed some new parts as the originals were worn to death, and that one functioned the best when those parts were replaced.
One of them had been rebarreled and re chambered, and needed a total day's worth of careful filing, and metal work. It was as if the person who did the re-bore didn't bother to test if afterwards, as the chamber had sharp edges and the rounds wouldn't feed. there was some solder built up around the edges of the new chamber and the original steel and it was nasty. I had to re profile the feed ramp and chamber completely, and polish the entire feed and chamber. OMG it was a pain.
The final one's bolt looked as if the bottom locking lug catches had been used as a hammer. It would not smoothly let the bolt feed, and got caught on tow long burrs every single time. The bolt is hardened and even with super sharp carbide end mills is was slow going. A high grade file would NOT work. Only carbide... It also was a wartime commercial and the machining on those from the factory was pretty rough. There was a 100 year old burr inside the bolt guide groove and that needed filing down and reshaping too.
I polished all of the guide surfaces for the bolts on all of them too.
After MANY rounds and range trips I finally got them reliable. Thankfully...
That said, they're done.
