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Double Rifles, Single Shots & Combinations >> Paradox and Bore Guns

DarylS
.700 member

Reged: 10/08/05
Posts: 26870
Loc: Beautiful British Columbia, Ca...

Re: My new GP Greener Bore Gun
05/09/07 12:46 AM

Bob, I like your idea about the 60" twist as opposed to the 35". Back in the hayday of double ML's for dangerous game, the English makers were hung up over using twists in the 36" range, as noted by Forsyth in his little book " The Sporting Rifle and it's Projectiles" printed in 1861 or 2.
; He noted the fast twists stripped balls, and recommended slower twists, as slow as 1 in 12 feet in some instances. We know today, that is too slow as enormous charges are needed to get stability in those rates of twist.
; 60" to 70" would probably handle quite well with round balls and short slugs. My own 14 bore (.69 cal.) rifle, with it's 66" twist shot amazingly well with RB's as well as slugs in the 600gr. weight. 5 shot round balls groups off the bench ran 1 1/2" consistantly, over a 20 years of such use with only the express sights for aiming. The heavier slugs greatly increased recoil and were not used much, only for testing, however they did shoot to the same sights to 50 yards and ran roughly 2" fo groups, much larger than round balls.
: The round balls, if slightly hardened, would exit a moose so more penetration wasn't needed. RB's in pure lead weighted 480gr. at .680" diameter, while WW balls at .683"(same mould) weighed 466gr. I ran the balls at 1,550fps, same as my 12 bore ctg. gun did with 5 1/2 drams (150gr.) of 2F and .715" balls at 545gr. in pure lead.
: For most hunting, I'd use RB's and pick a rate of twist expecially for them. The 60" to 75" would be IT. Comprimise twists, like the 35" normally avialable nowadays, interest me little as they usually fail to deliver the best results from either projectile. My 12 bore double gun would average 2" at 25 yards, shooting lefts and rights, and it was a smoothbore. Longer range shooting would be necessary for a rifled bore to show it's potential, I believe.
; I suggest picking the appropriate twist for the projectile you wish to shoot.

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

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

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Subject	Posted by	Posted on
My new GP Greener Bore Gun	450_Ackley	16/07/07 05:41 PM
Re: My new GP Greener Bore Gun	Birdhunter50	23/07/08 09:23 AM
Re: My new GP Greener Bore Gun	Rolland	08/10/07 02:46 PM
Re: My new GP Greener Bore Gun	DarylS	09/10/07 09:08 PM
Re: My new GP Greener Bore Gun	Otto	23/10/07 11:27 PM
Re: My new GP Greener Bore Gun	mehulkamdar	24/10/07 11:12 AM
Re: My new GP Greener Bore Gun	DarylS	24/10/07 12:11 PM
Re: My new GP Greener Bore Gun	Otto	24/10/07 10:47 PM
Re: My new GP Greener Bore Gun	DarylS	19/09/07 03:55 AM
Re: My new GP Greener Bore Gun	450_Ackley	22/09/07 02:45 PM
Re: My new GP Greener Bore Gun	450	17/10/08 07:29 PM
Re: My new GP Greener Bore Gun	450	17/10/08 07:50 PM
Re: My new GP Greener Bore Gun	DarylS	18/10/08 02:51 AM
Re: My new GP Greener Bore Gun	bigdog	18/10/08 09:05 AM
Re: My new GP Greener Bore Gun	DarylS	19/10/08 09:34 AM
Re: My new GP Greener Bore Gun	lancaster	20/10/08 04:35 AM
Re: My new GP Greener Bore Gun	DarylS	20/10/08 04:45 AM
Re: My new GP Greener Bore Gun	tinker	20/10/08 04:56 AM
Re: My new GP Greener Bore Gun	DarylS	20/10/08 08:21 AM
Re: My new GP Greener Bore Gun	88MauSporter	20/10/08 11:37 AM
Re: My new GP Greener Bore Gun	DarylS	21/10/08 03:12 AM
Re: My new GP Greener Bore Gun	lancaster	21/10/08 04:54 AM
Re: My new GP Greener Bore Gun	DarylS	24/10/08 02:01 AM
Re: My new GP Greener Bore Gun	lancaster	24/10/08 03:38 AM
Re: My new GP Greener Bore Gun	tinker	24/10/08 04:24 AM
Re: My new GP Greener Bore Gun	DarylS	24/10/08 09:53 AM
Re: My new GP Greener Bore Gun	tinker	24/10/08 11:14 AM
Re: My new GP Greener Bore Gun	DarylS	25/10/08 02:43 AM
Re: My new GP Greener Bore Gun	lancaster	25/10/08 03:42 AM
Re: My new GP Greener Bore Gun	DarylS	19/12/08 06:11 PM
Re: My new GP Greener Bore Gun	lancaster	20/10/08 04:56 AM
Re: My new GP Greener Bore Gun	bigdog	19/10/08 03:38 PM
Re: My new GP Greener Bore Gun	450	15/10/08 05:16 PM
Re: My new GP Greener Bore Gun	450_Ackley	17/10/08 10:52 AM
Re: My new GP Greener Bore Gun	450	17/10/08 05:21 PM
Re: My new GP Greener Bore Gun	450_Ackley	17/10/08 06:45 PM
Re: My new GP Greener Bore Gun	tarawa	23/07/08 09:21 PM
Re: My new GP Greener Bore Gun	450_Ackley	24/07/08 08:18 PM
Re: My new GP Greener Bore Gun	450_Ackley	24/07/08 08:28 PM
Re: My new GP Greener Bore Gun	shinz	25/07/08 02:40 PM
Re: My new GP Greener Bore Gun	Newy	23/03/08 05:41 PM
Re: My new GP Greener Bore Gun	450_Ackley	24/03/08 04:02 PM
Re: My new GP Greener Bore Gun	kenbeth	23/07/08 07:42 AM
Re: My new GP Greener Bore Gun	shinz	23/07/08 08:59 AM
Re: My new GP Greener Bore Gun	mehulkamdar	02/10/07 01:59 PM
Re: My new GP Greener Bore Gun	450_Ackley	03/10/07 04:49 PM
Re: My new GP Greener Bore Gun	mehulkamdar	07/10/07 01:40 AM
Re: My new GP Greener Bore Gun	Jim_w	27/09/07 08:18 AM
Re: My new GP Greener Bore Gun	degoins	16/07/07 09:42 PM
Re: My new GP Greener Bore Gun	bouldersmith	16/07/07 09:46 PM
Re: My new GP Greener Bore Gun	rigbymauser	17/07/07 02:01 AM
Re: My new GP Greener Bore Gun DELETED	ALAN_MCKENZIE	17/07/07 10:12 PM
Re: My new GP Greener Bore Gun	DarylS	18/07/07 12:40 AM
Re: My new GP Greener Bore Gun	450_Ackley	18/07/07 07:15 AM
Re: My new GP Greener Bore Gun	450	18/07/07 05:19 PM
Re: My new GP Greener Bore Gun	Bigjim	19/12/08 08:55 AM
Re: My new GP Greener Bore Gun	450_Ackley	18/07/07 07:10 PM
Re: My new GP Greener Bore Gun	DarylS	19/07/07 01:38 AM
Re: My new GP Greener Bore Gun	450	19/07/07 10:05 AM
Re: My new GP Greener Bore Gun	450_Ackley	19/07/07 02:12 PM
Re: My new GP Greener Bore Gun	LukeinNZ	21/07/07 07:30 AM
Re: My new GP Greener Bore Gun	450_Ackley	21/07/07 08:04 AM
Re: My new GP Greener Bore Gun	Omnivorous_Bob	24/07/07 01:57 AM
Re: My new GP Greener Bore Gun	333_okh	03/09/07 07:36 AM
Re: My new GP Greener Bore Gun	ALAN_MCKENZIE	04/09/07 01:09 AM
Re: My new GP Greener Bore Gun	DarylS	05/09/07 12:46 AM
Re: My new GP Greener Bore Gun	DarylS	17/07/07 02:14 AM
Re: My new GP Greener Bore Gun	450_Ackley	17/07/07 07:39 AM
Range Results GP Greener 12 bore.	450_Ackley	17/07/07 07:31 PM
Re: Range Results GP Greener 12 bore.	shinz	23/07/08 09:10 AM
Re: Range Results GP Greener 12 bore.	degoins	17/07/07 09:31 PM
Re: My new GP Greener Bore Gun	500grains	17/07/07 06:32 AM

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