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Shooting & Reloading - Mausers, Big Bores and others >> Big Bore Rifles

450_Ackley
.375 member

Reged: 06/02/03
Posts: 583
Loc: Darling Downs, Qld Australia

Re: CZ 550 in 505 Gibbs
30/03/11 12:27 PM

All,
The original load the guy tried was 100 grains of AR 2208, which should have given him about 2150-2200 fps, not that underloaded, but not a heavy load either. No fillers were used at all, that I'm aware of.
I've personally seen the chamber cast, and the throat is ridiculously long, we are only theorising that the long throat had something to do with it as well. (Also Bertram cases were used in the original loading, not that that should have a bearing either)
It was quite a surprise when the 600 grn Woodleigh could be dropped into the throat, a sized case chambered and no resistance felt at all. This is where the short neck on a 500 J is a downside, whereas the much nicer neck on a 505 might have permitted him to seat the bullet out to be just shy of the lands.
My own 500 J was built using a Clymer reamer that Pro-Cal had at the time, it has a much shorter throat, I can seat a 535 out to touch the lands if I needed to.

DC

Post Extras

Entire topic
Subject	Posted by	Posted on
CZ 550 in 505 Gibbs	Empire375	29/03/11 07:28 PM
Re: CZ 550 in 505 Gibbs	fourbore	03/04/11 07:24 PM
Re: CZ 550 in 505 Gibbs	Ben	03/04/11 07:43 PM
Re: CZ 550 in 505 Gibbs	chuck375	04/04/11 07:40 AM
Re: CZ 550 in 505 Gibbs	Empire375	04/04/11 10:07 AM
Re: CZ 550 in 505 Gibbs	500grains	29/03/11 09:08 PM
Re: CZ 550 in 505 Gibbs	FATBOY404	29/03/11 09:26 PM
Re: CZ 550 in 505 Gibbs	mauserand9mm	29/03/11 10:15 PM
Re: CZ 550 in 505 Gibbs	450_Ackley	30/03/11 07:33 AM
Re: CZ 550 in 505 Gibbs	FATBOY404	30/03/11 07:39 AM
Re: CZ 550 in 505 Gibbs	450_Ackley	30/03/11 08:19 AM
Re: CZ 550 in 505 Gibbs	Empire375	30/03/11 10:26 AM
Re: CZ 550 in 505 Gibbs	500Nitro	30/03/11 10:32 AM
Re: CZ 550 in 505 Gibbs	Empire375	30/03/11 10:57 AM
Re: CZ 550 in 505 Gibbs	500Nitro	30/03/11 11:09 AM
Re: CZ 550 in 505 Gibbs	mauserand9mm	30/03/11 11:48 AM
Re: CZ 550 in 505 Gibbs	500Nitro	30/03/11 11:51 AM
Re: CZ 550 in 505 Gibbs	NitroX	30/03/11 12:10 PM
Re: CZ 550 in 505 Gibbs	450_Ackley	30/03/11 12:27 PM
Re: CZ 550 in 505 Gibbs	mauserand9mm	30/03/11 12:40 PM
Re: CZ 550 in 505 Gibbs	500Nitro	30/03/11 12:31 PM
Re: CZ 550 in 505 Gibbs	NitroX	30/03/11 01:32 PM
Re: CZ 550 in 505 Gibbs	500Nitro	30/03/11 01:36 PM
Re: CZ 550 in 505 Gibbs	450_Ackley	30/03/11 01:55 PM
Re: CZ 550 in 505 Gibbs	500Nitro	30/03/11 02:05 PM
Re: CZ 550 in 505 Gibbs	450_Ackley	30/03/11 03:15 PM
Re: CZ 550 in 505 Gibbs	500Nitro	30/03/11 03:44 PM
Re: CZ 550 in 505 Gibbs	NitroX	30/03/11 04:07 PM
Re: CZ 550 in 505 Gibbs	450_Ackley	30/03/11 05:18 PM
Re: CZ 550 in 505 Gibbs	NitroX	31/03/11 03:06 AM
Re: CZ 550 in 505 Gibbs	chuck375	31/03/11 07:22 PM
Re: CZ 550 in 505 Gibbs	Ben	31/03/11 08:03 PM
Re: CZ 550 in 505 Gibbs	chuck375	31/03/11 11:54 PM
Re: CZ 550 in 505 Gibbs	fourbore	03/04/11 07:11 PM
Re: CZ 550 in 505 Gibbs	500Nitro	31/03/11 05:03 AM
Re: CZ 550 in 505 Gibbs	Ben	31/03/11 08:10 AM
Re: CZ 550 in 505 Gibbs	500Nitro	31/03/11 08:13 AM
Re: CZ 550 in 505 Gibbs	mauserand9mm	30/03/11 04:35 PM
Re: CZ 550 in 505 Gibbs	FATBOY404	30/03/11 12:39 PM

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