Large bore fixed sighted gun

[awp_101]

Interesting that .45 ACP hardball headspaces against the cone of the .455 Eley chamber and stands proud enough to pull fired brass out with a fingernail. Not something you'd want to do in a Webley top-break. but Colt New Service is a sturdy, solid frame gu . Range report to follow.

Attachment 99998

Interesting! I'll have to try that in my British New Service...

[Poconnor]

Every C&S rear notch U I have installed needed shimming, I use tiny squares of sheet brass fit into the channel in front of the rear screw to get the elevation right then lock the screw down with LT243. But once I got that done they have all stayed zero'ed with the load I chose. Done it to my 627, 686-5, 625, and 28-2.

As C&S is closing up I just placed my last order for a small cache of those sights. I will happily trade no sharp edges for the effort required to re-zero them.

What thickness sheet brass are you using?

[fatdog]

What thickness sheet brass are you using?

36 Gauge (.005" Thick) and it often takes between 4 and 9 layers to get the shim height I need, I cut very small rectangles the width of the sight channel, place them just in front of the rear screw, and lay them in until I have it high enough, when verified I go back and loctite 243 both screws.

this stuff

We used to make wrap around front sight shrouds out of that stuff for cowboy guns since paint is not legal (at least in NCOWS) and epoxy them in place for front sight contrast.

Easier to buy smaller quantities on ebay, that roll is more than a lifetime supply for all the uses I have for that stuff.

[03RN]

[awp_101]

Interesting that .45 ACP hardball headspaces against the cone of the .455 Eley chamber and stands proud enough to pull fired brass out with a fingernail. Not something you'd want to do in a Webley top-break. but Colt New Service is a sturdy, solid frame gu . Range report to follow.

Attachment 99998

Interesting! I'll have to try that in my British New Service...

Alas, no joy.

[03RN]

[Colt191145lover]

Tell us more about the grips!

[03RN]

Tell us more about the grips!

Just some stag grips from eBay.

[03RN]

Poa/poi is pretty close. A little left at 20 yards. I'll bring a file next time I shoot.

[Outpost75]

Range report on my 2-3/4" Colt New Service .455

.45 ACP military ball headspaces on the chamber cone without a clip. Cylinder is original .455 Eley and has NOT been shaved. Use a BIC pen to poke out the ACP empties.

Speer 250-grain Deep Curl JHP with 4 grains of Bullseye in Starline brass expands well in water jugs. Stops in 4th gallon jug. Good penetration at 650 fps. This load is too hot for the top-break Webleys, but fine in the New Service.