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Double Rifles, Single Shots & Combinations >> Double Rifles

CJF
.300 member

Reged: 07/08/17
Posts: 216
Loc: United States

Re: John Dickson 500 BPE hammer gun
29/09/20 10:58 AM

Hi Tinker & 3DogMike -

I'll try to provide more information and answer your questions.

Regarding the firing position, I was at a bench, shooting off a Caldwell bag (not a lead sled). Left hand under the forearm, but NOT grasping hard or pulling in. (Similar to this bag: https://www.amazon.com/Caldwell-Deadshot-Construction-Resistance-Shooting/dp/B000PG7VRO)

Regarding the bore, I confess I don't have great confidence in my measurements, but I came up with 0.504 land and perhaps 0.508 groove. Bullets measured 0.502-0.503 and were just lubed, not paper patched (yet). They had a gas check. Cast. 370 grain. I do not have a sizer.

Charge was measured by volume. Compressed 1/8-1/4" inch when seating projectile. Standard rifle primers. After pouring, I tapped the case a few times to settle the charge before seating bullet on top of a cardboard wad cut by hand (so rough).

Lube was ancient Thompson Center lube from 30 years ago when I hunted with a flintlock, spread in the bullets grooves and also under the bullet. Rounds were fired 24 hours after loading.

Brass was new Hornady.

Results were much better for left barrel, with all 3 striking no more than 2.5" from centerline point of aim. First shot was low 2", left 1.5". 2nd was low 1/2", left 1/2", 3rd was high 2.25", left 2".

Right were all further out from POA, at outside ring (6") spaced starting at 2pm up thru 1pm.

I'll get a picture up later. I am a decent shot and I knew while shooting this that I could do better (I was a bit nervous and excited.)

I will double check my volume measure for the charge before repeating.

Chris

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Subject	Posted by	Posted on
John Dickson 500 BPE hammer gun	CJF	17/08/19 03:04 PM
Re: John Dickson 500 BPE hammer gun	DarylS	17/08/19 03:55 PM
Re: John Dickson 500 BPE hammer gun	CJF	17/08/19 10:24 PM
Re: John Dickson 500 BPE hammer gun	3DogMike	17/08/19 11:21 PM
Re: John Dickson 500 BPE hammer gun	CJF	18/08/19 02:22 AM
Re: John Dickson 500 BPE hammer gun	Kdgj	18/08/19 03:45 AM
Re: John Dickson 500 BPE hammer gun	CJF	18/08/19 04:33 AM
Re: John Dickson 500 BPE hammer gun	93x64mm	18/08/19 07:40 AM
Re: John Dickson 500 BPE hammer gun	DarylS	18/08/19 07:52 AM
Re: John Dickson 500 BPE hammer gun	CptCurl	18/08/19 09:58 AM
Re: John Dickson 500 BPE hammer gun	Iowa_303s	18/08/19 12:16 PM
Re: John Dickson 500 BPE hammer gun	CJF	18/08/19 07:35 PM
Re: John Dickson 500 BPE hammer gun	rigbymauser	18/08/19 07:58 PM
Re: John Dickson 500 BPE hammer gun	Huvius	19/08/19 12:45 AM
Re: John Dickson 500 BPE hammer gun	CJF	14/09/20 03:23 AM
Re: John Dickson 500 BPE hammer gun	MikeRowe	14/09/20 03:44 AM
Re: John Dickson 500 BPE hammer gun	CJF	29/09/20 06:15 AM
Re: John Dickson 500 BPE hammer gun	3DogMike	29/09/20 06:57 AM
Re: John Dickson 500 BPE hammer gun	MikeRowe	29/09/20 10:33 AM
Re: John Dickson 500 BPE hammer gun	CJF	29/09/20 10:58 AM
Re: John Dickson 500 BPE hammer gun	3DogMike	30/09/20 12:48 AM
Re: John Dickson 500 BPE hammer gun	tinker	30/09/20 10:50 AM
Re: John Dickson 500 BPE hammer gun	3DogMike	18/02/21 02:01 PM
Re: John Dickson 500 BPE hammer gun	CJF	27/02/23 07:13 AM
Re: John Dickson 500 BPE hammer gun	CJF	30/03/23 06:48 AM
Re: John Dickson 500 BPE hammer gun	CJF	23/06/23 12:34 PM
Re: John Dickson 500 BPE hammer gun	3DogMike	23/06/23 01:35 PM
Re: John Dickson 500 BPE hammer gun	MikeRowe	25/06/23 09:45 AM
Re: John Dickson 500 BPE hammer gun	CJF	29/06/23 10:01 AM
Re: John Dickson 500 BPE hammer gun	3DogMike	29/06/23 10:58 AM
Re: John Dickson 500 BPE hammer gun	Huvius	29/06/23 11:03 AM
Re: John Dickson 500 BPE hammer gun	CptCurl	29/06/23 09:38 PM
Re: John Dickson 500 BPE hammer gun	CJF	02/07/23 06:18 AM
Re: John Dickson 500 BPE hammer gun	CJF	19/09/23 09:33 AM
Re: John Dickson 500 BPE hammer gun	CJF	29/09/20 11:18 AM
Re: John Dickson 500 BPE hammer gun	tinker	29/09/20 06:53 AM
Re: John Dickson 500 BPE hammer gun	CJF	23/08/19 10:58 AM
Re: John Dickson 500 BPE hammer gun	3DogMike	23/08/19 11:21 AM
Re: John Dickson 500 BPE hammer gun	Kdgj	25/08/19 02:56 AM
Re: John Dickson 500 BPE hammer gun	3DogMike	25/08/19 08:18 AM
Re: John Dickson 500 BPE hammer gun	Kdgj	26/08/19 01:13 AM
Re: John Dickson 500 BPE hammer gun	CJF	09/09/19 12:25 AM
Re: John Dickson 500 BPE hammer gun	TH44	18/08/19 09:11 AM
Re: John Dickson 500 BPE hammer gun	CJF	18/08/19 01:40 AM
Re: John Dickson 500 BPE hammer gun	CJF	17/08/19 11:17 PM
Re: John Dickson 500 BPE hammer gun	CJF	17/08/19 11:19 PM

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