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Old 07-11-2013, 05:52 PM   #21
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Quote:
Originally Posted by sniper762 View Post
European 7.62mm = .311 groove to groove (bore diameter)

Not all. 7.62 NATO is a .308 groove diameter.


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Old 07-11-2013, 06:25 PM   #22
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762 nato is NOT european



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Old 07-12-2013, 12:46 AM   #23
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Yep, confusing for sure.

People use the word caliber when the mean to ask what cartridge the gun is chambered for. You could have several guns that have a bore diameter of equal caliber, but they take different cartridges. .30-30, .308 Winchester, .30-06 Springfield, .300 Winchester Magnum, .300 WSSM, all may have the same caliber requirements for the bore and projectile diameter, but ehy all have different cartidge case shapes, powder volumes, etc.

But I guess asking, "What caliber is that?" is a bit more natural than "What is that rifle chambered for?"

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Old 07-12-2013, 02:41 AM   #24
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Quote:
Originally Posted by mseric View Post
Not all. 7.62 NATO is a .308 groove diameter.
Not exactly European. Actually Eastern European is more accurate. Think Commie, Russian Europeans and their Warsaw Pact buddies.
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Old 07-12-2013, 09:58 AM   #25
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Here is a good article from the NRA and American Rifleman.

http://www.americanrifleman.org/articles/how-to-read-center-fire-ammunition-boxes/?utm_source=newsletter&utm_campaign=Threaded&utm_c ontent=buffere6028&utm_medium=facebook

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Old 07-12-2013, 10:03 AM   #26
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Then you have people like lazzeroni who name them different all together.

He has a 7.21 Tomahawk which is a .284" dia bullet. Which if you use the 1"= 25.4mm is correct. as .284= 7.21mm


Most of it is marketing and that is all.

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Old 07-12-2013, 04:20 PM   #27
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Good article!


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