March
S M T W T F S
1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31
Who's Online Now
5 members (Jimmy W, KDGJ, smlekid, Owenjj3, Argo44), 822 guests, and 3 robots.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums10
Topics38,374
Posts544,009
Members14,391
Most Online1,131
Jan 21st, 2024
Previous Thread
Next Thread
Print Thread
#609654 01/18/22 09:53 AM
Joined: Feb 2002
Posts: 202
R.C. Offline OP
Sidelock
OP Offline
Sidelock

Joined: Feb 2002
Posts: 202
Looking at getting choke opening work done on a very tightly choked double, (.045) a Belgium made boxlock from 1930's. As may have been the custom in that era, the choke sections are quite lengthy, the choke forcing cone starting about five inches from the muzzles. If the choke opening consists only of machining out metal in a cylindrical manner, by rough estimate opening to .015 the end result would be choke parallel sections exceeding three inches. I'm thinking this odd configuration may not produce pattern results I'm trying to achieve (skeet 2 or light mod). Is this a realistic concern?

Joined: Jan 2006
Posts: 9,398
Likes: 307
Sidelock
***
Offline
Sidelock
***

Joined: Jan 2006
Posts: 9,398
Likes: 307
Proper choke opening is indeed reboring, from the breech and using a pilot to insure the choke is cut perfectly parallel to the bore.
An entirely new choke contour (based on the reamer chosen) will be cut in your barrel


Joined: Jan 2004
Posts: 6,670
Likes: 372
Sidelock
**
Offline
Sidelock
**

Joined: Jan 2004
Posts: 6,670
Likes: 372
What is the risk of losing pattern regulation by opening the chokes? Can any ol' gunsmith pull this off?


_________
BrentD, (Professor - just for Stan)

[Linked Image from i.imgur.com]


Joined: Mar 2002
Posts: 7,693
Likes: 450
Sidelock
**
Offline
Sidelock
**

Joined: Mar 2002
Posts: 7,693
Likes: 450
Long chokes work well. Often we see short chokes because they are easier and I expect cheaper to do. Anyone opening up chokes should use a pilot to keep your chokes centered Many use Mike O for the job. First thing is to pattern your gun to verify POI. If off you could adjust it when altering chokes. Going from .045 to .015 is a big jump. I might open one barrel to .025 and the second to .015 which has worked well for me in the past. Again pattern it to see if it meets your needs.

1 member likes this: John Roberts
Joined: Mar 2002
Posts: 3,081
Likes: 332
Sidelock
**
Offline
Sidelock
**

Joined: Mar 2002
Posts: 3,081
Likes: 332
Whatever you decide, just send it to Skeet's Gunshop in Tahlequah, OK and let Dean Harris do the work. Best there is and reasonable.
JR


Be strong, be of good courage.
God bless America, long live the Republic.
1 member likes this: Stanton Hillis
Joined: Mar 2016
Posts: 50
Likes: 3
Sidelock
Offline
Sidelock

Joined: Mar 2016
Posts: 50
Likes: 3
In my past experience, Dean is the Master,

2 members like this: Stanton Hillis, John Roberts
Joined: Oct 2004
Posts: 1,826
Likes: 12
Sidelock
**
Offline
Sidelock
**

Joined: Oct 2004
Posts: 1,826
Likes: 12
I normally do my own, for 12ga anyways. But I bought a little 410 SxS and had Dick Williams do it not having a 410 reamer. He charged like 65 for both barrels. 1-989-777-1240 - in Michigan.

Last edited by Paul Harm; 01/19/22 12:20 PM.
Joined: Mar 2002
Posts: 3,081
Likes: 332
Sidelock
**
Offline
Sidelock
**

Joined: Mar 2002
Posts: 3,081
Likes: 332
Originally Posted by Paul Harm
I normally do my own, for 12ga anyways. But I bought a little 410 SxS and had Dick Williams do it not having a 410 reamer. He charged like 65 for both barrels. 1-989-777-1240 - in Michigan.
That's dirt cheap for the work, Paul. Hope the quality of work did not reflect the price.
JR


Be strong, be of good courage.
God bless America, long live the Republic.
Joined: Feb 2002
Posts: 202
R.C. Offline OP
Sidelock
OP Offline
Sidelock

Joined: Feb 2002
Posts: 202
Thanks for the replies, I called Skeet's and spoke to Dean, sending him my barrel set.

Joined: Jan 2002
Posts: 13,127
Likes: 1128
Sidelock
**
Offline
Sidelock
**

Joined: Jan 2002
Posts: 13,127
Likes: 1128
I second Dean for choke work, and helping with regulation issues. Willingness to take time to discuss the work being requested goes a long way with me, and he is the best at that I've ever dealt with. I sent him a 20 ga. double that I had determined had regulation issues. It cross-fired badly with 7/8 oz. loads, to the tune of 8" each way at 25 yards. He said, in phone conversation, that he would do what he could to move the patterns for me. When he called back with the verdict he said that all the gun needed to regulate perfectly was to use 1 ounce loads at about 1150 - 1175 fps. He could have modified the muzzle interior profiles to try to move the patterns for me with the lighter loads, and I'd never have known the difference. But, Dean is an honest man and felt I would be happier with using the one ounce loads. I am.

He also opened the chokes on it, and lengthened the chambers to 2 3/4 inches. Perfect work, and no change in regulation from the choke "relieving" done.

Color me a big fan of Dean Harris.


May God bless America and those who defend her.

Link Copied to Clipboard

doublegunshop.com home | Welcome | Sponsors & Advertisers | DoubleGun Rack | Doublegun Book Rack

Order or request info | Other Useful Information

Updated every minute of everyday!


Copyright (c) 1993 - 2024 doublegunshop.com. All rights reserved. doublegunshop.com - Bloomfield, NY 14469. USA These materials are provided by doublegunshop.com as a service to its customers and may be used for informational purposes only. doublegunshop.com assumes no responsibility for errors or omissions in these materials. THESE MATERIALS ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANT-ABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. doublegunshop.com further does not warrant the accuracy or completeness of the information, text, graphics, links or other items contained within these materials. doublegunshop.com shall not be liable for any special, indirect, incidental, or consequential damages, including without limitation, lost revenues or lost profits, which may result from the use of these materials. doublegunshop.com may make changes to these materials, or to the products described therein, at any time without notice. doublegunshop.com makes no commitment to update the information contained herein. This is a public un-moderated forum participate at your own risk.

Note: The posting of Copyrighted material on this forum is prohibited without prior written consent of the Copyright holder. For specifics on Copyright Law and restrictions refer to: http://www.copyright.gov/laws/ - doublegunshop.com will not monitor nor will they be held liable for copyright violations presented on the BBS which is an open and un-moderated public forum.

Powered by UBB.threads™ PHP Forum Software 7.7.5
(Release build 20201027)
Responsive Width:

PHP: 7.0.33-0+deb9u11+hw1 Page Time: 0.072s Queries: 39 (0.050s) Memory: 0.8425 MB (Peak: 1.8988 MB) Data Comp: Off Server Time: 2024-03-28 22:51:44 UTC
Valid HTML 5 and Valid CSS