Quote:
Originally Posted by Hamden
Jerry
At risk of thread drift, what do you think of this?
Barrel switching between a 1977ish "A" series and a 1959ish pre "A".
Dealing with 2 barrels each age (4 barrels total) that work fine on their respective pistol frame. Early barrel gun combination works fine. Later gun combination work fine. But put early barrels on later frame or vise versa, both wont feed. Barrels all seem to fit either frame just fine. No hangups in mounting at all. Magazines all work in either feeding gun, early or late. But they wont feed if they are in a mismatched age of barrel and frame.
77ish barrels=original 5.5" (relined by Alex Hamilton, D&T by Roddy Toyota) and more recent 7" (Millet sighted) cut to 5.5" from Gil Hebard. (The cut barrel has grouped 1/2" at 50 with 900B)
59ish barrels=field size, and 7 3/8 compensated type (don't use comp)
In other words, early barrel fits fine on later frame but won't feed. Later barrel on early frame-ditto. On their own frames they work perfect.
What I want to do is use the relined 1977 barrel on the 1959 frame.
Jack H
|
Hello Jack;
The first thing I would check is extractor timing, and, or cam out.
The clearance and cam out radius cut for the extractor, varies from gun to gun, (barrel to barrel) and can have a significant influence on reliability. I am ashamed to admit, I struggled with this problem for years, before the "light came on".. .22 rifles almost universially, use a 45 degree angle to cam out the extractor, which is much easier to adjust and time, than a radius..I now convert every .22 pistol to the 45 degree slot. The next thing to check, is breechface counter bore alignment with the chamber. If it is off slightly, it will effect function.
Goodluck
Jerry