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Shooting & Reloading - Mausers, Big Bores and others >> Lee Speed Forum & Archive

DarylS
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Reged: 10/08/05
Posts: 27000
Loc: Beautiful British Columbia, Ca...

Re: .303 British as a hunting calibre?
25/03/08 12:17 PM

No damage is done by shooting .311's or .312's through a .308" groove diameter barrel. In my friend's rifle, the neck area is cut with the .303 reamer, thus there is lots of room for the neck to expand. You might not be able to take a normal .308" rifle chambered for say, a .308 or .30/06 and chamber it with a round loaded with a .312" bullet. The bullet might be too large to allow sufficient expansion of the neck to release the bullet, thus excessive pressure could result.
: In Keith's rifle's case, there is lots of room and thus no tight-neck syndrome(which will cause problems if present). Due to the mid range to slower powders used that develope maximum pressure some distance down the bore, ie: 6" to 12" ahead of the chamber, the bullet is already sized properly and thus does not increase breech pressure a measurable amount. Parker O. Ackley proved this many years ago, using IMR reclaimed 4895 powder and an '06 case and barrel with up to .358" bullets, appropriately necked and throated, of course. The bullets are sized, swaged if you will, in the angle of the throat to properly fit. There is not much difference between .308" and .312" bullets - a mere .002" per side.

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

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

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Subject	Posted by	Posted on
.303 British as a hunting calibre?	JabaliHunter	25/03/08 01:33 AM
Re: .303 British as a hunting calibre?	Ripp	31/03/08 12:32 AM
Re: .303 British as a hunting calibre?	Grenadier	31/03/08 09:18 AM
Re: .303 British as a hunting calibre?	JabaliHunter	16/04/08 12:23 AM
Re: .303 British as a hunting calibre?	DarylS	16/04/08 12:54 AM
Re: .303 British as a hunting calibre?	9.3x57	16/04/08 12:47 PM
Re: .303 British as a hunting calibre?	Nakihunter	16/04/08 01:12 PM
Re: .303 British as a hunting calibre?	Anonymous	16/04/08 02:05 PM
Re: .303 British as a hunting calibre?	Mike_Bailey	16/04/08 12:53 AM
Re: .303 British as a hunting calibre?	bonanza	25/03/08 09:30 AM
Re: .303 British as a hunting calibre?	JabaliHunter	26/03/08 05:03 AM
Re: .303 British as a hunting calibre?	88MauSporter	25/03/08 10:31 AM
Re: .303 British as a hunting calibre?	JabaliHunter	26/03/08 05:02 AM
Re: .303 British as a hunting calibre?	9.3x57	25/03/08 11:37 AM
More .303 British bullet tests courtesy of 9ThreeXFifty7	JabaliHunter	15/04/08 10:39 PM
Re: More .303 British bullet tests courtesy of 9ThreeXFifty7	JabaliHunter	06/06/08 01:40 AM
Re: More .303 British bullet tests courtesy of 9ThreeXFifty7	oupa	07/06/08 06:15 AM
Re: More .303 British bullet tests courtesy of 9ThreeXFifty7	JabaliHunter	07/06/08 07:53 AM
Re: More .303 British bullet tests courtesy of 9ThreeXFifty7	tophet1	07/06/08 11:30 AM
Re: More .303 British bullet tests courtesy of 9ThreeXFifty7	oupa	14/06/08 01:23 AM
Re: More .303 British bullet tests courtesy of 9ThreeXFifty7	DarylS	14/06/08 09:59 PM
Re: More .303 British bullet tests courtesy of 9ThreeXFifty7	shinz	07/07/08 11:26 AM
.303 British bullet tests courtesy of 9ThreeXFifty7	JabaliHunter	15/04/08 10:35 PM
Re: .303 British bullet tests courtesy of 9ThreeXFifty7	iqbal	15/04/08 11:30 PM
Re: .303 British as a hunting calibre?	JabaliHunter	16/04/08 08:32 PM
Re: .303 British as a hunting calibre?	9.3x57	17/04/08 12:47 AM
Re: .303 British as a hunting calibre?	Plains99	17/04/08 06:57 AM
Re: .303 British as a hunting calibre?	weedypigeon	17/04/08 02:12 PM
Re: .303 British as a hunting calibre?	JabaliHunter	26/03/08 04:51 AM
Re: .303 British as a hunting calibre?	CowboyCS	25/03/08 11:18 AM
Re: .303 British as a hunting calibre?	ALAN_MCKENZIE	25/03/08 11:38 AM
Re: .303 British as a hunting calibre?	NitroX	26/03/08 01:01 PM
Re: .303 British as a hunting calibre?	9.3x57	26/03/08 02:57 PM
Re: .303 British as a hunting calibre?	JabaliHunter	26/03/08 04:59 AM
Re: .303 British as a hunting calibre?	9.3x57	25/03/08 02:13 AM
Re: .303 British as a hunting calibre?	JabaliHunter	25/03/08 03:22 AM
Re: .303 British as a hunting calibre?	DarylS	25/03/08 03:59 AM
Re: .303 British as a hunting calibre?	JabaliHunter	25/03/08 04:24 AM
Re: .303 British as a hunting calibre?	DarylS	25/03/08 12:17 PM
Re: .303 British as a hunting calibre?	JabaliHunter	26/03/08 05:00 AM
Re: .303 British as a hunting calibre?	moltogordo	06/07/08 02:25 PM
Re: .303 British as a hunting calibre?	DarylS	26/03/08 08:20 AM
Re: .303 British as a hunting calibre?	dnovo	26/03/08 09:16 AM
Re: .303 British as a hunting calibre?	9.3x57	26/03/08 10:40 AM

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