Home | Ezine | Forums | Links | Contact
NitroExpress.com: What accuracy to expect from the .72 double?

View recent messages : 24 hours | 48 hours | 7 days | 14 days | 30 days | 60 days | More Smilies


*** Enjoy NitroExpress.com? Participate and join in. ***

Shooting & Reloading - Mausers, Big Bores and others >> Muzzleloaders & Blackpowder

DarylSModerator
.700 member


Reged: 10/08/05
Posts: 27000
Loc: Beautiful British Columbia, Ca...
Re: What accuracy to expect from the .72 double?
      23/07/07 02:00 AM

: Do the barrels cross further with more powder?
: Do they shoot a smaller overall group with less powder?
: My buddy uses only 120gr. of 2F GOEX BP in his .75 for moose and gets one shot kills every time. More powder really isn't needed although some guns shoot better with more. His gun is a single, of course and he never needed the fast second shot, although he does carry paper ctgs. that can be loaded in 10 seconds in his gun, 8 seconds in my 14 bore. Nether of these guns need more powder than 120gr. although I routinely used 165gr. in mine.
; Try reducing the charge to 110gr. of Swiss. That should be equivalent to 120gr. GOEX, give sufficient power for any game you are likely to shoot in North America, including the big bears (not black bears) and may shoot closer together. It may also bring the barrels closer together.
: If it doens't, the only suggestion is to send it back to Italy for re-regulating, or to sight for one or the other barrel and use that for your first shot, knowing where the other hits. Many of the doubles of the 19th century didn't shoot together and the owners learned to shoot them accurately by holding accordingly.
: I would suggest your double should hold in 3" or less at 50 yards, firing alternatively, lefts and rights or visa-vis. ome guys use T7 or Pyrodex in them, however I trust only real black powder.
: The crowns of the barrels generally need to be rounded to allow loading sufficiently tight combinations as to give the requisite accuracy. A piece of 320 grit emery under your thumb, after a sharp taper (about 60 degrees) is cut with a chamfer tool, will give you the crown needed. This prevents cutting the patch upon seating the ball in the muzzle, prior to shoving it onto the charge.

--------------------
Daryl


"a gun without hammers is like a Spaniel without ears" King George V

Edited by Daryl_S (23/07/07 02:27 AM)

Post Extras Print Post   Remind Me!     Notify Moderator


Entire topic
Subject Posted by Posted on
* What accuracy to expect from the .72 double? pjb 22/07/07 10:57 PM
. * * Re: What accuracy to expect from the .72 double? DarylSModerator   23/07/07 02:00 AM
. * * Re: What accuracy to expect from the .72 double? pjb   23/07/07 04:19 AM

Extra information
0 registered and 25 anonymous users are browsing this forum.

Moderator:  DarylS 



Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled

Rating:
Thread views: 1737

Rate this thread

Jump to

Contact Us NitroExpress.com

Powered by UBB.threads™ 6.5.5


Home | Ezine | Forums | Links | Contact


Copyright 2003 to 2011 - all rights reserved