Author Topic: intermediate caliber  (Read 13149 times)

PegLeg45

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Re: intermediate caliber
« Reply #10 on: July 11, 2017, 12:35:09 PM »
How come for the first 75 years of smokeless powder did all military's settle on a round rifle caliber between 6.5 and 7.92 ?

I guess they were still in the "bigger bullet to compensate for slower velocity" mindset...until they finally figured out that speed kills almost as good if the bullet is made right.  ;D

Now I guess everyone is still trying to find that happy medium magic cartridge.  :D
"I expect perdition, I always have. I keep this building at my back, and several guns handy, in case perdition arrives in a form that's susceptible to bullets. I expect it will come in the disease form, though. I'm susceptible to diseases, and you can't shoot a damned disease." ~ Judge Roy Bean, Streets of Laredo

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les snyder

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Re: intermediate caliber
« Reply #11 on: July 11, 2017, 09:16:23 PM »
look for your 6.5 to be a 6.5x51 or longer case to make use of the superior ballistic coefficient of the 6.5 bullets...for 1500m targets

tombogan03884

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Re: intermediate caliber
« Reply #12 on: July 12, 2017, 06:12:04 AM »
Over on Forgotten Weapons some one wondered why second rate powers , Japan, Italy, Switzerland, Austria-Hungary , etc chose 6.5 variants while the major players such as England, Russia, Germany, and France went with 7.62 to 8 mm range. Ian's answer was that he thought it might just be coincidence.
I notice though that the larger bore countries were all more or less colonial powers habitually fighting savages while the 6.5 countries, with the exception of Italy, were only fighting each other.

les snyder

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Re: intermediate caliber
« Reply #13 on: July 12, 2017, 08:01:24 AM »
longer range shooting... across the valley from one side of the mountain to the next

TAB

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Re: intermediate caliber
« Reply #14 on: July 12, 2017, 02:48:27 PM »
I like the 6.8 spc personally.    the only thing I like about 556 is you can carry a lot of it.    still if I am in the sand box, I want more.   not so much for the longer range, but so I know if I hit them, they go down.  there is an ~800 ft lbs difference betweent he 556 and the 762
I always break all the clay pigeons,  some times its even with lead.

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Re: intermediate caliber
« Reply #15 on: Today at 04:50:52 PM »

Big Frank

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Re: intermediate caliber
« Reply #15 on: July 19, 2017, 11:09:32 PM »
"So how does a varmint round, a high power .22 qualify as an "intermediate" caliber ?" Simple. It's intermediate in power between pistol cartridges like .45 ACP and main battle rifle cartridges like 7.62x51mm.
""It may be laid down as a primary position, and the basis of our system, that every Citizen who enjoys the protection of a free Government, owes not only a proportion of his property, but even his personal services to the defence of it, and consequently that the Citizens of America (with a few legal and official exceptions) from 18 to 50 Years of Age should be borne on the Militia Rolls, provided with uniform Arms, and so far accustomed to the use of them, that the Total strength of the Country might be called forth at a Short Notice on any very interesting Emergency." - George Washington. Letter to Alexander Hamilton, Friday, May 02, 1783

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tombogan03884

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Re: intermediate caliber
« Reply #16 on: July 20, 2017, 06:02:06 AM »
Frank, the whole point of this thread is that it ISN'T half way between.45 and a battle rifle round. 5.56/.223 isn't even in the same class as a real military round.

Big Frank

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Re: intermediate caliber
« Reply #17 on: July 20, 2017, 04:16:12 PM »
Frank, the whole point of this thread is that it ISN'T half way between.45 and a battle rifle round. 5.56/.223 isn't even in the same class as a real military round.

You're right. It's MORE THAN halfway between them. The last time I looked up the muzzle energy of the 3 rounds, the 5.56x45mm was over 3 times the power of the .45 and about half the power of the 7.62mm. If it's not, then what has changed? Perhaps I should have said the 5.56x45mm is intermediate in power between a .22 rimfire rifle and a .30-06.
""It may be laid down as a primary position, and the basis of our system, that every Citizen who enjoys the protection of a free Government, owes not only a proportion of his property, but even his personal services to the defence of it, and consequently that the Citizens of America (with a few legal and official exceptions) from 18 to 50 Years of Age should be borne on the Militia Rolls, provided with uniform Arms, and so far accustomed to the use of them, that the Total strength of the Country might be called forth at a Short Notice on any very interesting Emergency." - George Washington. Letter to Alexander Hamilton, Friday, May 02, 1783

THE RIGHT TO BUY WEAPONS IS THE RIGHT TO BE FREE - A. E. van Vogt, The Weapon Shops of Isher

les snyder

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Re: intermediate caliber
« Reply #18 on: July 20, 2017, 10:58:53 PM »
don't overlook the effect that Army (Marine) doctrine plays in the selection of military small arms...if non symmetrical urban warfare against dismounted troops is the most likely opposition, a MK18's 10.3" or M4's 14.5" barrel makes a lot of sense ...

Rastus

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Re: intermediate caliber
« Reply #19 on: July 21, 2017, 05:36:21 AM »
Intermediate caliber, isn't that something like 75 to 150 kilitons?
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