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

Kaimiloa
.224 member

Reged: 12/03/09
Posts: 37
Loc: Arizona, USA

Re: 1840's Harkom
06/04/09 05:31 PM

Daryl,
I managed to review the majority of Greener's 9th Ed. over the past two days, and it now has MORE note-tags at the top of its pages - even tho it was already the most annotated and underlined book in my whole library of gun books!

I found the part where Greener shows his remarkable "shadow-graphs" of fired SG loads. He does mention that his interpretation of what is happening at the muzzle could be conjecture, but says it explains what appears to be happening with a choked load vs. one from a cylinder bore. I'm quite sure I've seen modern high-speed photographs that show it is not the wad pushing up thru the shot column that is causing a doughnut pattern. But again it is likely a choked muzzle was involved for the modern pics.

So I suspect both issues are correct, helping to explain what a troublesome issue doughnutting can be, and both gas activities at the muzzle and/or wad effects can be involved in that discouraging pattern effect.

I noted again that Greener really emphasizes the necessity of using a good-quality felt wad for SG loading, with a hard card beneath that to seal the lubed felt from the powder. He also thinks putting a thin card atop the felt wad is probably not necessary. I like the idea of making a "cookie" out of the lubed felt wad tho, using a card wad both below and above it, and think it makes it into a better gas-piston and bore-wiper.

I didn't find the part about considerably roughing up the muzzle end of the bore to retard the wads like a choke does. Can that be elsewhere - W. Greener maybe?

Aloha, Ka'imiloa

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Few pleasures exceed restoring a nice old gun and returning it to shooting and hunting.

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Subject	Posted by	Posted on
1840's Harkom	Mike_Bailey	30/03/09 08:24 PM
Re: 1840's Harkom	Dphariss	31/03/09 02:53 AM
Re: 1840's Harkom	DarylS	31/03/09 07:54 AM
Re: 1840's Harkom	Kaimiloa	31/03/09 07:44 PM
Re: 1840's Harkom	Mike_Bailey	31/03/09 11:25 PM
Re: 1840's Harkom	Kaimiloa	01/04/09 06:02 PM
Re: 1840's Harkom	Dphariss	02/04/09 05:33 PM
Re: 1840's Harkom	Mike_Bailey	02/04/09 06:09 PM
Re: 1840's Harkom	Kaimiloa	03/04/09 04:52 PM
Re: 1840's Harkom	Kaimiloa	06/04/09 05:42 PM
Re: 1840's Harkom	Mike_Bailey	06/04/09 09:53 PM
Re: 1840's Harkom	Kaimiloa	07/04/09 05:27 PM
Re: 1840's Harkom	Mike_Bailey	01/04/09 06:23 PM
Re: 1840's Harkom	DarylS	02/04/09 12:59 AM
Re: 1840's Harkom	Kaimiloa	03/04/09 05:16 PM
Re: 1840's Harkom	DarylS	04/04/09 03:10 AM
Re: 1840's Harkom	Kaimiloa	06/04/09 05:31 PM
Re: 1840's Harkom	DarylS	07/04/09 01:08 AM
Re: 1840's Harkom	Kaimiloa	07/04/09 05:41 PM
Re: 1840's Harkom	Mike_Bailey	08/04/09 12:35 AM
Re: 1840's Harkom	DarylS	01/04/09 02:14 AM
Re: 1840's Harkom	Mike_Bailey	30/03/09 08:32 PM
Re: 1840's Harkom	peter	30/03/09 10:53 PM
Re: 1840's Harkom	Mike_Bailey	31/03/09 12:11 AM
Re: 1840's Harkom	Mike_Bailey	31/03/09 12:22 AM

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