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Interesting project. Could a 20 or 16 gauge barrel be sleeved to 54 caliber. There is also the regulation that now any thing over 50 caliber cartridge is considered a destructive device. A 12 gauge...

There will be a gap but as long as the firing pin is hitting the plunger the gap is just there it dosnt matter. Drill and tap the case for a 5/16 nylon point set screw or a plunger type thread it in...

There are those who cross fired and those who are about to.
A cross fire cost me making the presidents 100 one year I got in a hurry on the last shot at 600 yds and forgot to check number board put...

Most barrels have a small amount of taper from breech to muzzle, thats why the breech end is normally marked on a blank.
Using a gage pin will get you very close. Once you have this groove dia - (...

Sorry mine was second year when I looked up so 1958-59

327093

Here is a view of one of the projects ( Brass Ball Peen) and a end view of the lapping tool for the rolling block. Another interruption daughter grandson and 2 puppies to play with, I get...

Remembe chipmunks are small size the trap accordingly you done want to catch them by just the tail. A box trap will work if you can find where they travel and get it in a run where they have to go...

I would take a drill bit of the size of the flange on the primer and grind it to a point that matches the taper of the body slightly longer. sharpen point to cut brass so it dosnt grab back sides...

I intentionally ground my 12 tpi tool a few thousandths narrow, compound was set to zero ( parrallel to the spindle) I cut thread to depth then a couple passes at .001 per pass on the compound opened...

Keep up the good work a great forum and great people. Do what you need to keep it going.

Ink the case and see where its binding. the ink from a permanent marker will rub off and show the tight points. Then work from there.
The chamber could be polished out a couple thousandths to allow...

Finished up the test stud body today bored it to 1/2" and made a brass bushing to fit with 1/4" hole. Had to order a piece of brass to make the lap disk. Had 2 interruptions today in the shop so that...

Always like the tapered octagon barrels on handguns just looks right to me

Mine is 1955 made early one Picked it up at a gun show for 750 around 2000. 6" barrel.

6x45 may be an option also a 233 case necked up to 6mm. in an ar platform may be a great choice. Slightly longer powder column but better shoulder angle .

I believe the parent case for the 6ppc was the 5.? X 39 necked up and a change to the shoulder angle.
I had considered a 7.62 x 39 for cast bullets in the 180-200 grain range thinking the case...

Looks like a simple useful modification
A couple washers of the correct ID and OD would also add side to side location, Maybe a couple fender washers would work.
BUt as said a great idea simple...

Side to side the points will get you very close the up and down you cant control other than shimming the bases.A white paper behind the points you can see very close how well they match up. The 1...

flat black paint with a little talcum powder mixed in will give a very flat finish. Its almost as flat and deep as the soot from a carbide lamp.

I measured the rings side to side with calipers when they were the same reading each side I called them good. Then I made a set of the alignment bars and life got a lot easier. I also used my lap bar...

The original stainless winchester barrels had steel sintered into the outside surfaces to blue.
Most of the "paints are going to be thick enough to make the rib look rough.
You want a solution...

A 45 acp case would need to shrink to make this bullet at .457-458 swaging. A 45 acp case is probably around .475 at the base of the case. With the taper in the case walls it would be a heavy jacket...

327027

Got up this morning warmed up the surface grinder and ground my threading tool .042 wide. Set up with the compound set at 0 and dial zeroed. Ran around 200 rpm and .010 per pass to start as...

I believe his 4 H competition will satisfy the one and then belong to an affiliated club. Go to the cmps website and they will have it listed.

If hes shooting a scope hell have the adjustments he...

327008

Started on the rolling block project today. the above pic is the test barrel tenon I turned. Will grind the threading tool tomorrow and thread it. If all is right will bore 1/2" hole thru...