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  #1  
Old 03-16-2005, 04:37 PM
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So, what does -06 mean?


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Hi all,

This has probably been asked a billion times, but what does the -06 mean in .30-06 (and .25-06, etc). My understanding is that the projectile in the .308, .30-30, .30-06, 300WM, etc is really close to the same diameter (although they are not interchangable, I know that). So what does the number after the dash mean?

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  #2  
Old 03-16-2005, 04:45 PM
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Cartridge was adopted by U.S in 1906

The originoal cartridge was a .30-03 (.30 caliber cartridge adopted in by the U.S. Army in 1903) that replaced the
.30/40 Krag used during the Spanish-American War. The 30-03 cartridge was changed in 1906 and became know as the .30-06. All the best...
Gil
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  #3  
Old 03-16-2005, 04:54 PM
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http://www.reloadbench.com/cartridges/3006s.html
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  #4  
Old 03-16-2005, 04:54 PM
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Quote:
Originally Posted by CavScout
Hi all,

This has probably been asked a billion times, but what does the -06 mean in .30-06 (and .25-06, etc). My understanding is that the projectile in the .308, .30-30, .30-06, 300WM, etc is really close to the same diameter (although they are not interchangable, I know that). So what does the number after the dash mean?

Thanks,
The "06" stands for the 30-06's apoption date by the military (pronounced "ought six")..and before that, there as a slightly longer necked/round nosed bullet using 30-03 (bit its' kind of rare as most of the rifles got converted to the 30-06).

Some calibers built on the 30-06 casadapted the "06" part of the name (as in 25-06).

The numbers in most of the caliber names doen't mean much of anything, just marketeind and a "sound good" kind of thing. .218Bee, .219Zipper, .220 Swift, .224Weatherby, .225 Wincester all use standard .224" bullets....the .22 Savage (also called the .22 High Power) uses .228" bullets...but the .22Long Rifle rim fire and the .22Jet centerfire (handgun round) both use .222" bullets. See...no real relationship between bullet diameter and name.

Don't know why the 30-30 got that name..it was never loaded commercially with black powder, so the second "30" is probably just left over from black powder designations (same is true for the 25/35).

Before smokless (back in the 1800's) it wasn't a little bit better. The common way to designate a round was by caliber-and black powder weight -and often by bullet weight. So you'd get things like the 45-70-500 or 40-82-260. But mixed in were "name" round sthat didn't have that numeric information (.44 Henry, .44 Evans, .44 Evans Long, 58 Miller, etc.)...and you'd have some folks tha nemaed them ack-basswards like the 56-46 Spencer where the SEOND number is the caliber.

Don't get me started on metrics.
---------
Back to the "ought six"...as time has come full cirle and we are back in dates ending with 04, 05, etc. We've seemed to just go with "oh five" rather than "ought five"...this is nice, will keep future generations from confusing the 1900's and the 2000's .

We've almost compeltely droped the "nought" for "zero". Wihc leadsme to the only other survivor of the "ounght years" are the names for buck shot ("double ought", etc.) and possibley the corrupted "do nut" ( which was once a dough nought).

Last edited by ribbonstone; 03-16-2005 at 04:59 PM.
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  #5  
Old 03-16-2005, 11:26 PM
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CavScout. The projectiles in the cartridges you named are interchangeable as far as diameter. You just don't want to uae a pointed bullet in a tube magazine for a 30-30. Some 30-30's are bolt action or single shot and it is safe to use pointed bullets in those particular guns.
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  #6  
Old 03-19-2005, 04:54 PM
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Hey thanks for the responses. I had been looking through my reloading manuals and my curiosity was stirred. That and my father-in-law owns a .30-30.
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  #7  
Old 03-22-2005, 01:52 PM
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The government's designation for the round is "Ball, Caliber 30, Model of 1906."

I read that Marlin coined the name "30-30" on their rifles so chambered because they didn't want to mark their rifles with the name of their chief competitor, "30 WCF" - WCF meaning Winchester Center Fire. It is true, however, that the 30-30 is loaded with approximately 30 grains of smokeless powder, the exact charge depending on the powder type of course.
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