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

DarylS
.700 member

Reged: 10/08/05
Posts: 26992
Loc: Beautiful British Columbia, Ca...

Re: My 35.303 is Finally Finished
15/02/11 09:45 AM

It would be nice to think the case merely blows foreward at the neck/shoulder joint - unfortunately it doesn't always happen there, seems rarely happens there, but below the shoulder and frequently right at the web.

When we fireform our wildcats on rimmed cases, we establish a false shoulder for positive headspace just as with a rimless case. Failure to do that, results in poor case life due to constant stretch every shot with resulting lengthening of the case at the neck - requiring frequent trimming.

An Example: A Ctg. with the weakest sloping of shoulders, ie: Hornet and Bee, with loads that some people cringe about, fired from CZ's and Rugers, loads that match the .222 and .223 for speeds, have lasted 17 firings and only needed annealing. No stretching - ever.

When necking .22 Hornet's down for .17AH cases, we establish a false shoulder to headspace on, for a crush fit. that way, the cae merely blwos outward, not stretching foreward as would happen if the shoulder was not prelocated.

The brass fitted before being fired, and was only neck sized afterwards - never touching nor needing to touch the shoulder - no bumping, no FL sizing - ever- standard .22 Hornets, .218Bee's or the .17Cal variants.

Same deal with larger wildcats on rimmed or bleted cases - always use shoulder to bolt face for tight headspace.

It is common knowledge with wildcats or amongst wildcatters that in making the brass fit case head to shoulder before it is fired, it will last much longer.

If you wish to ignore this - that's just fine - it is only a suggestion to help your brass last.

Buddy Keith, who shoots a LOT of .303, has great caselife and does not spare the horsepower, expecially in his P-14's. You cannot use once-fired brass for this, only new brass, as once fired and stretched, it is of little or no use, it's already ruined.

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

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

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Subject	Posted by	Posted on
My 35.303 is Finally Finished	Perry	31/01/11 11:23 PM
Re: My 35.303 is Finally Finished	mehulkamdar	05/02/11 03:23 AM
Re: My 35.303 is Finally Finished	Perry	14/02/11 07:11 AM
Re: My 35.303 is Finally Finished	Rule303	14/02/11 12:25 PM
Re: My 35.303 is Finally Finished	Perry	14/02/11 08:11 PM
Re: My 35.303 is Finally Finished	ovny	14/02/11 08:26 PM
Re: My 35.303 is Finally Finished	DarylS	15/02/11 03:16 AM
Re: My 35.303 is Finally Finished	mauserand9mm	15/02/11 08:57 AM
Re: My 35.303 is Finally Finished	DarylS	15/02/11 09:45 AM
Re: My 35.303 is Finally Finished	mauserand9mm	15/02/11 02:39 PM
Re: My 35.303 is Finally Finished	450_Ackley	15/02/11 05:25 PM
Re: My 35.303 is Finally Finished	Perry	15/02/11 10:17 PM
Re: My 35.303 is Finally Finished	DarylS	16/02/11 01:40 AM
Re: My 35.303 is Finally Finished	mauserand9mm	16/02/11 09:01 AM
Re: My 35.303 is Finally Finished	450_Ackley	16/02/11 03:51 PM
Re: My 35.303 is Finally Finished	mauserand9mm	16/02/11 05:11 PM
Re: My 35.303 is Finally Finished	DarylS	17/02/11 03:50 AM
Re: My 35.303 is Finally Finished	Rule303	20/02/11 07:35 PM
Re: My 35.303 is Finally Finished	mauserand9mm	17/02/11 08:44 AM
Re: My 35.303 is Finally Finished	NitroX	31/01/11 11:51 PM
Re: My 35.303 is Finally Finished	rigbymauser	01/02/11 04:03 AM
Re: My 35.303 is Finally Finished	Perry	01/02/11 06:49 AM
Re: My 35.303 is Finally Finished	Ben	01/02/11 07:04 AM
Re: My 35.303 is Finally Finished	458Shooter	02/02/11 07:22 AM
Re: My 35.303 is Finally Finished	Rule303	02/02/11 10:33 AM
Re: My 35.303 is Finally Finished	NitroX	02/02/11 03:20 PM
Re: My 35.303 is Finally Finished	DarylS	03/02/11 08:49 AM

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