Stabilizing the barrel

original: 1911pro.com
Retrieved: December 12, 2011
Last Post: September 25, 2011

Jerry Keefer
Sep 19, 2011

Got this gun in the other day, and noticed that the forum is in a lull. Maybe this will provoke a surge in discussion.:):) I'll post an after shot when it's complete, which will not be soon.

You can see how the smith used an old Bo Mar insert to put pressure on the hood. This is the second one I've seen. I believe there is considerable merit to this. I prefer to mill a slot in the slide over the hood and set the insert down into the slide. The Bo Mar part has an arch which contacts the hood at two points. I like to machine a flat on the hood, which is compatible with a flat on the insert. Careful fitting not only places pressure at this point, but adds a flat square area to actually stabilize the end of the barrel, which has no support. This particular gun is an old winner, with numerous major championships to its credit. It's obvious that it shot quite well.


donw
Sep 19, 2011

Very cool Jerry. Never seen that type of stabilizer before. Given the Tiger Tooth stippling, I'd guess it's a Clark gun.


Chuck Warner
Sep 19, 2011

It reminds me of a better version of the old solid barrel positioner. I have often wondered about something like that and maybe correponding ball detents in the upper lugs, maybe throw in the old Clark or Pachmayr slide positioner, and maybe the Pachmayr headspace detent... would be an interesting build with ball detents all over... Maybe one on either side of the lower lugs as well.


Jerry Keefer
Sep 19, 2011

donw wrote:
Given the Tiger Tooth stippling, I'd guess it's a Clark gun.

Don;
It's an old AMU build. .38AMU


Daniel Watters
Sep 25, 2011

Log, you forgot the set screws through the frame's dust cover against the slide's spring tunnel, a la Jim Clark.

The method of running set screws through the slide against the barrel's locking lugs was patented during the 1960s: US Patent #3,380,346.

patent


Chuck Warner
Sep 25, 2011

Thats a pretty cool patent. I would use set screws, or ball detents, instead of lugs though. And back up to the second lug.


BBBBill
Sep 25, 2011

Daniel Watters wrote:
...The method of running set screws through the slide against the barrel's locking lugs was patented during the 1960s:..

Bob Loveless (the knife maker) used that technique on at least one of his builds, a custom Commander.


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