doublegunshop.com - home Forums General Discussion DoubleGun BBS @ doublegunshop.com .639 Purdey Express double rifle 7 to 8 dram

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Re: .639 Purdey Express double rifle 7 to 8 dram GaryD007 #538750 02/22/19 04:42 PM
Joined: Jun 2006 Posts: 2,966 Likes: 293 Great Lakes region ClapperZapper Sidelock
ClapperZapper Sidelock Joined: Jun 2006 Posts: 2,966 Likes: 293 Great Lakes region	I believe you are correct. Enjoy the vacation. Out there doing it best I can.

Re: .639 Purdey Express double rifle 7 to 8 dram GaryD007 #539136 02/25/19 11:54 AM
Joined: Jun 2008 Posts: 2,736 Likes: 96 Derbyshire, England lagopus Sidelock
lagopus Sidelock Joined: Jun 2008 Posts: 2,736 Likes: 96 Derbyshire, England	I suspect that it is a .369 Purdey and the 639 is a misprint. Lagopus�..

Re: .639 Purdey Express double rifle 7 to 8 dram lagopus #539182 02/25/19 06:22 PM
Joined: Jul 2011 Posts: 152 Ohio GaryD007 OP Sidelock
OP GaryD007 Sidelock Joined: Jul 2011 Posts: 152 Ohio	I see where you are coming from but the catalog is dated 1885 and lists 6 t0 7 drams of blackpowder.

Re: .639 Purdey Express double rifle 7 to 8 dram GaryD007 #539229 02/25/19 10:14 PM
Joined: Dec 2001 Posts: 12,743 Lynchburg TN 2-piper Sidelock
2-piper Sidelock Joined: Dec 2001 Posts: 12,743 Lynchburg TN	6 to 7 drams of black powder weighs 164-191 grains. You couldn't cram that much powder in a .50-110 Win case, full to the brim without the bullet, much less a .369. At .639" diameter, it would take 2�" of case length to put in 7 drams of black. Miller/TN I Didn't Say Everything I Said, Yogi Berra

Re: .639 Purdey Express double rifle 7 to 8 dram 2-piper #539233 02/25/19 10:50 PM
Joined: Jan 2005 Posts: 948 Likes: 2 Northern NV Tinker Sidelock
Tinker Sidelock Joined: Jan 2005 Posts: 948 Likes: 2 Northern NV	Originally Posted By: 2-piper 6 to 7 drams of black powder weighs 164-191 grains. You couldn't cram that much powder in a .50-110 Win case, full to the brim without the bullet, much less a .369. At .639" diameter, it would take 2�" of case length to put in 7 drams of black. The long case 20 bore Purdey I'd seen had perhaps 3" cases I really need to find my notes and photos on that rifle

Re: .639 Purdey Express double rifle 7 to 8 dram GaryD007 #539266 02/26/19 08:37 AM
Joined: Jul 2011 Posts: 152 Ohio GaryD007 OP Sidelock
OP GaryD007 Sidelock Joined: Jul 2011 Posts: 152 Ohio	The 1885 copy of the Purdey catalog is in the appendix of the latest Purdey book by Dallas.

Re: .639 Purdey Express double rifle 7 to 8 dram GaryD007 #539276 02/26/19 10:51 AM
Joined: Dec 2001 Posts: 12,743 Lynchburg TN 2-piper Sidelock
2-piper Sidelock Joined: Dec 2001 Posts: 12,743 Lynchburg TN	Tinker; It would certainly appear that long 20 would hold that much powder & still allow seating a bullet, but try it with an approximate 92� gauge which is what a ,369 would be with decimals dropped to 1 place. Miller/TN I Didn't Say Everything I Said, Yogi Berra

Re: .639 Purdey Express double rifle 7 to 8 dram GaryD007 #638103 11/27/23 10:34 AM
Joined: Nov 2005 Posts: 298 Likes: 43 North Carolina CJF Sidelock
CJF Sidelock Joined: Nov 2005 Posts: 298 Likes: 43 North Carolina	Saw this article that goes deeper into the .639 https://www.vintageguns.co.uk/magazine/stepping-things-up

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