Su M Tu W Th F Sa
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
Who's Online
1 registered (redoak), 3 Guests and 0 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
13917 Members
10 Forums
35069 Topics
492066 Posts

Max Online: 462 @ 08/05/16 09:13 PM
Topic Options
#15363 - 12/16/06 07:18 PM 20 gauge Rifle Loads

I've just developed a hankering for a 20 gauge rifle, after reading the article in the Autumn DGJ. What I have in mind is to get an accessory rifled 20 gauge barrel for my New England Firearms single shot break-open rifle. I know that I could just use rifled slugs, but I'd prefer to load my own and use paper or brass cases and cast lead conical bullets, probably paper-patched, and load it like a rifle. I may use black powder and smokeless as well. I'd like to hear inputs about cases, bullets, wads, powder, reloading dies and loading data. Will the thin Magtech brass cases work, or are there thick-walled brass cases available?

#15428 - 12/17/06 08:08 AM Re: 20 gauge Rifle Loads [Re: ]
SKB Offline

Registered: 12/31/01
Posts: 5556
Loc: Colorado
My only comment is to look carefully at the rate of twist on these rifles. They are made to shoot sabots I believe. I made a rifle similar to this using a hasting barrel liner in a break open british 12 bore. The 20 ga rifle I made shoots excellent, though I regulated it for Lightfield (saboted)slugs. Good Luck,

ACGG Professional metalsmith, firearms import services.

#15573 - 12/18/06 12:58 AM Re: 20 gauge Rifle Loads [Re: SKB]
doublegunhq Offline

Registered: 12/28/04
Posts: 386
Loc: Canby OR
Brass cases will be too thin unless you get the machined ones. Rem plastic cases worked for me in my 20 ga paradox. They grip the bullet well so you don't have to worry about crimping. For load data, look at loads for the same weight of shot. The conical bullet I use weighs right around 500gr (it's the WR design for their fauneta). You will have to put some felt wads in the case to take up the space. I also used plastic obturator wads just to be sure of getting a good seal. Thus loaded, this gun is WAY more gun than a 20ga foster slug. Waaaay more.
Fine English, American and German Double Shotguns and Rifles

#16257 - 12/21/06 11:01 PM Re: 20 gauge Rifle Loads [Re: doublegunhq]
Tom Hall Offline

Registered: 05/24/03
Posts: 339
Loc: Southeast, NY
Been there tried that with the NEF.
That twist is fast and you would need a very heavy (or long) bullet to stabilize well in the barrel (I calculated upward of 900gr). I shot up to a 515
Rem cases are probably the best to work with as they seem to give the best fit and roll crimp well. They also gave higher velocities and lower deviation. I believe that the groove was about .625 or so in the NEF barrel and the Magtechs are too thin. The proper twist seems to be about a 60" or so with reasonable 400-500gr slugs in the 20 if they were a standard conical design. Rem SP20 wads have a very wide base and act as a good seal

Carbonation without fermentation is tyranny

Top home | Welcome | Sponsors & Advertisers | DoubleGun Rack | Doublegun Book Rack

Order or request info | Other Useful Information

Updated every minute of everyday!

Copyright (c) 1993 - 2019 All rights reserved. - Bloomfield, NY 14469. USA These materials are provided by as a service to its customers and may be used for informational purposes only. 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. further does not warrant the accuracy or completeness of the information, text, graphics, links or other items contained within these materials. 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. may make changes to these materials, or to the products described therein, at any time without notice. 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: - 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.