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Double Rifles, Single Shots & Combinations >> Building Double Rifles & Gunsmithing
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DarylS
.700 member


Reged: 10/08/05
Posts: 26866
Loc: Beautiful British Columbia, Ca...
Re: Slow twist barrels
      25/12/11 06:46 AM

30 years ago, I wanted a 104" twist, as per Forsyth. Today, I've modified that desire to 80" which, with .007" or .008" rifling depth and narrow lands with wide grooves, will handle perfectly.

I think going too slow is a mistake as it then takes a LOT of powder (recoil) or speed to get decent accuracy. Of course, smokeless powder drops recoil while increasing velocity.

If made for a single shot, it's nice to be able to load down for plinking and still get good accuracy with an easy shooting load. Having to go full tilt all the time wears on my old bones and joints. A slightly faster twist than 100 will allow this. I'm concerned the 100" twist will require over 1,500fps for favourable accuracy. By that I'm talking 2" to 3" max. at 100 yards. It should do better than 2", BTW.

I'm intersted in such a barrel.

Any word on design - dimensions?

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


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

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Entire topic
Subject Posted by Posted on
* Slow twist barrels Smoke73 24/12/11 06:59 PM
. * * Re: Slow twist barrels Birdhunter50   25/12/11 12:14 AM
. * * Re: Slow twist barrels DarylS   25/12/11 06:46 AM
. * * Re: Slow twist barrels Smoke73   25/12/11 08:42 AM
. * * Re: Slow twist barrels DarylS   25/12/11 08:48 AM
. * * Re: Slow twist barrels Tom_H   26/12/11 12:37 PM
. * * Re: Slow twist barrels tinker   26/12/11 01:04 PM
. * * Re: Slow twist barrels CowboyCS   26/12/11 02:01 PM
. * * Re: Slow twist barrels bouldersmith   26/12/11 11:22 PM
. * * Re: Slow twist barrels DarylS   27/12/11 05:38 AM
. * * Re: Slow twist barrels CowboyCS   27/12/11 12:17 PM
. * * Re: Slow twist barrels Dphariss   06/01/12 06:30 AM
. * * Re: Slow twist barrels CowboyCS   06/01/12 01:10 PM
. * * Re: Slow twist barrels Dphariss   07/01/12 02:27 AM
. * * Re: Slow twist barrels Smoke73   07/01/12 02:49 AM
. * * Re: Slow twist barrels jaz   10/01/12 01:01 PM
. * * Re: Slow twist barrels DarylS   11/01/12 05:53 AM
. * * Re: Slow twist barrels Dphariss   06/01/12 06:55 AM
. * * Re: Slow twist barrels DarylS   06/01/12 11:18 AM
. * * Re: Slow twist barrels DarylS   28/12/11 05:32 AM
. * * Re: Slow twist barrels DarylS   06/01/12 05:06 AM
. * * Re: Slow twist barrels bouldersmith   27/12/11 10:04 AM
. * * Re: Slow twist barrels CptCurlAdministrator   24/12/11 10:19 PM

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