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#5602305 - 02/16/15 12:54 PM When does a caliber become a magnum?
HWY_MAN Online   content
THF Celebrity

Registered: 05/25/06
Posts: 25902
Loc: Howard County
Is it velocity, ft-lbs or something as simple as just adding a belt? Oop's some magnums don't have a belt.


Edited by HWY_MAN (02/16/15 12:55 PM)
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#5602388 - 02/16/15 01:28 PM Re: When does a caliber become a magnum? [Re: HWY_MAN]
dee Online   content
Extreme Tracker

Registered: 04/10/10
Posts: 4948
Loc: Red River way
I'd say anything that has more than 50gr powder capacity.
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#5602407 - 02/16/15 01:36 PM Re: When does a caliber become a magnum? [Re: dee]
bside Offline
Bird Dog

Registered: 06/10/14
Posts: 315
Loc: DFW
Originally Posted By: dee
I'd say anything that has more than 50gr powder capacity.


.30-06?

I'd call the differentiation more art than science. "Magnum" basically means "we took a chambering that exists and took it to 11" or "we're Holland and Holland and we like that term"

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#5602431 - 02/16/15 01:52 PM Re: When does a caliber become a magnum? [Re: HWY_MAN]
Colt W. Knight Offline
Veteran Tracker

Registered: 03/22/11
Posts: 2084
Loc: West Virginia
The only real definition I know is when Champagne comes in 1.5 liter bottles.

A 17 HMR doesn't have 50 grains of powder.

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#5602475 - 02/16/15 02:15 PM Re: When does a caliber become a magnum? [Re: HWY_MAN]
FiremanJG Online   content
THF Celebrity

Registered: 12/16/08
Posts: 20458
Loc: Wolfe City, TX
Long actions with a bolt face .Dia of .540 +/-

257 Weatherby, 264 Win Mag, 270 weatherby Mag, 7mm Rem Mag, 7mm Weatherby Mag, 7 STW,
7mm Rem Ultra Mag, 300 H & H, 300 Win Mag, 300 Weatherby Mag, 300 RUM, 303 Brit,
8mm Rem Mag, 338 Win Mag, 340 Weatherby Mag, 338 RUM, 375 H & H, 375 Weatherby,
375 RUM, 416 Rem Mag, 458 Win Mag, and the 458 Lott.

Long actions with a bolt face .Dia of .585 +/-

30/378 Weatherby, 338 Lapua, 338/378 Weatherby, 378 Weatherby mag, 416 Rigby,
416 Weatherby Mag, 460 Weatherby Mag, and the 470 Nitro Express.
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#5602477 - 02/16/15 02:16 PM Re: When does a caliber become a magnum? [Re: HWY_MAN]
SingleShot85 Online   content


Registered: 05/27/09
Posts: 1778
Loc: S.A. and Kinney Co.
any chambering with at least .532 bolt face..... is a good start. The .284 and has standard BF"... but its a baby magnum
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#5602488 - 02/16/15 02:20 PM Re: When does a caliber become a magnum? [Re: HWY_MAN]
RiverRider Online   content
THF Trophy Hunter

Registered: 11/11/07
Posts: 6909
Loc: Wise Co.
Its meaningless.
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Originally Posted By: Cleric
God I am hating caliber threads more and more

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#5602559 - 02/16/15 02:52 PM Re: When does a caliber become a magnum? [Re: HWY_MAN]
gusick Offline
Pro Tracker

Registered: 07/19/13
Posts: 1324
There are no rules whatsoever to naming cartridges. Half the time, they don't even name it by the right bore diameter.

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#5602572 - 02/16/15 02:56 PM Re: When does a caliber become a magnum? [Re: dee]
redchevy Online   content
THF Celebrity

Registered: 10/25/04
Posts: 25322
Loc: Texas
Originally Posted By: dee
I'd say anything that has more than 50gr powder capacity.


Guess my 270 win just became a magnum.
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#5602587 - 02/16/15 03:00 PM Re: When does a caliber become a magnum? [Re: RiverRider]
Nogalus Prairie Online   content
THF Celebrity

Registered: 11/22/10
Posts: 21791
Loc: Corsicana
Originally Posted By: RiverRider
Its meaningless.
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Originally Posted By: Russ79
I learned long ago you can't reason someone out of something they don't reason themselves into.



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#5602611 - 02/16/15 03:08 PM Re: When does a caliber become a magnum? [Re: HWY_MAN]
blackcoal Offline
THF Trophy Hunter

Registered: 01/19/12
Posts: 8332
Loc: 60 Mi North of DFW
Strictly in the name and nothing else. Example is .222 Magnum, short lived commercial round and was made extinct by the .223 Rem.
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#5602620 - 02/16/15 03:11 PM Re: When does a caliber become a magnum? [Re: HWY_MAN]
dkershen Online   content


Registered: 05/14/09
Posts: 16663
Loc: Denton/Argyle
It becomes a magnum when the marketing guy advertising the new product adds it to the name.
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#5602892 - 02/16/15 05:31 PM Re: When does a caliber become a magnum? [Re: HWY_MAN]
blackcoal Offline
THF Trophy Hunter

Registered: 01/19/12
Posts: 8332
Loc: 60 Mi North of DFW
Story goes when they came out with the .450 Marlin they originally were going to name it the .450 short magnum. However, Marketing decided it would stop buyers because they would associate it with African game calibers and super heavy recoil.
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The Greatest Enemy of knowledge is not ignorance,
it is the illusion of knowledge.--Stephen Hawking

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#5602910 - 02/16/15 05:40 PM Re: When does a caliber become a magnum? [Re: HWY_MAN]
kmon1 Offline
junior

Registered: 09/27/06
Posts: 21395
Loc: Texas
Magnum is just a name, some of the most powerful cartridges do not have Magnum in the name while some weak ones by comparison have Magnum. Look at the quarter bore 256 Winchester Magnum and 257 WBY magnum, both are named MAGNUM but one most here would not consider enough for hill country deer.
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#5602987 - 02/16/15 06:17 PM Re: When does a caliber become a magnum? [Re: HWY_MAN]
10ring Offline
Tracker

Registered: 11/19/12
Posts: 840
Loc: Pilot Point, TX
.22 wmr. Not very big compared to most magnums. Should have just called it the .22 extra long rifle!

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