How does the crown look?


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BowerR64
August 5, 2013, 12:21 AM
I had some issues in the past with a few .22s i bought the first of the year just shot really bad. I then read a post about the barrel crown and i started to look into mine. I noticed that those few pistols i had issues with also had very poor crowns.

Looking at them up close i noticed those that shot well had a nice uniform crown, those that peppered the target looked tore up. I started to pay more attention to then and even cleaned a few up and it helped ALOT.

I notice with these C&P revolvers i have a couple seem ok and a couple dont. I wasnt sure if it would matter with a ball rather then a conical bullet.

I recrowned 2 of them ill see if it helps or not. I didnt hurt them any so if i still cant hit anything then maybe its my loads.

before:after
http://i1292.photobucket.com/albums/b571/bowerr641/Firearms/Crown1_zps44e778a8.jpg

before:after
http://i1292.photobucket.com/albums/b571/bowerr641/Firearms/Crown2_zps6a40d21a.jpg

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BowerR64
August 5, 2013, 12:26 AM
Few simple tools is all i used to clean the edge up, a small ball grinder in a drill and a brass crown tool with a lapping compound. Got everything off e-bay

http://i1292.photobucket.com/albums/b571/bowerr641/Firearms/Crowntools_zps0685b0e0.jpg

I take the edge down with the ball grinder then i go over it with the brass tool with the lapping compound and that sort of polishes it.

the Black Spot
August 5, 2013, 10:18 AM
Looks good, firing test will tell.

BowerR64
August 6, 2013, 01:11 AM
I was going to try them today but it was hot and sticky. I think it will be better tomorrow.

I wanted to make up some other loads also.

Want to try a few with 2F and a few with filler.

Jim, West PA
August 6, 2013, 02:38 PM
Looking forward to your results Bower.

Prairie Dawg
August 6, 2013, 04:59 PM
Thanks for the post.
Looking forward to the shoot test.
I have a couple I want to do.
--Dawg

BowerR64
August 7, 2013, 02:24 AM
Well it seem to help the first one at the top, ive marked that one as "B"

I have 2 remingtons that are almost identical. One is A has fewer lands and grooves (5), B has more lands and grooves (7)

It seems to have made the groups a little smaller maybe?

I only shot it a few times before the crown repair.
This is 15 yards
http://i5.photobucket.com/albums/y191/BowerR64/Pistols/BlackpowderCrown_zps5433ff6b.jpg

How flat the muzzle is i cant really tell by the powder blast if its coming out uniformly or not.

A good crown has a nice uniform powder blast after a session of shooting but i cant tell on these C&P pistols.

Here is a crown i did on one of my .22s and you can see how uniform it looks when its working properly

http://i5.photobucket.com/albums/y191/BowerR64/Pistols/64barrelcutrecrownshoot_zps635292f2.jpg

Maybe if the end of the muzzle was shaped like the .22 is would show up easier?

zimmerstutzen
August 7, 2013, 11:57 AM
I use a countersink hand turned in a brace. (using a power machine causes chatter) Then I finish it off by turning a countersink backwards with emery cloth between the countersink and muzzle.

I would have thought that was a imprecise way of doing it, but the guys at H&H barrels (great match barrels but closed years ago) showed me to do it that way, during a visit to their shop.

BowerR64
August 7, 2013, 05:43 PM
I use a countersink hand turned in a brace. (using a power machine causes chatter) Then I finish it off by turning a countersink backwards with emery cloth between the countersink and muzzle.

I would have thought that was a imprecise way of doing it, but the guys at H&H barrels (great match barrels but closed years ago) showed me to do it that way, during a visit to their shop.
Do you have any pictures of yours?

Ive seen the tools for crowning at like midway USA and others that use a guide that goes down into the muzzle but ive also seen that type leave places on the lands and grooves where the guide runs down inside.

Im not trying to make a match grade barrel just help it a little.

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