whats the standard us grain we use.... is it 7.65 or 5.56 nato round
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whats the standard us grain we use.... is it 7.65 or 5.56 nato round
could you phrase that better? I'm kinda confused...but if you're talking about bullet weights in grains, then the 5.56x45, depending on the application, can be either 62 or 63 grain(4.0 or 4.1 gram) for military purposes. By 7.65, I assume you mean 7.62x51, because the 7.65 is not in use by the canadian or US military as far as I know. .32 ACP could technically be called a 7.65, and there's a 7.65 longue, but that's pretty much it. the 7.62x51 uses a bullet that weighs 146.6 grains, or 9.5 grams.
5.56 is standard in most of the US rifles. 7.62 are used in a few LMGs.
"It is only the enlightened ruler and the wise general who will use the highest intelligence of the army for the purposes of spying, and thereby they achieve great results." - Sun Tzu
35W | LWOOD 20100630
Depends ZAK is correct on the grain if thats what you were asking about. The dimentions vary from 7.62 to 5.56 the SCAR-H is 7.62 while most service rifles are 5.56
The term 'grain' is a measurement of weight, commonly used to weigh bullets, and is equal to exactly 64.79891 milligrams. Usage comes from the historical practice of weighing bullets on a balance scale using grains of barley as counterweights/units of measurement. Common US weapons and their calibers are listed below -
M16A2, M16A4, M4 MWS, M4A1 rifles and the M249 Automatic Rifle and Light Machine Gun all fire the 5.56 x 45mm cartridge.
Cartridges in this caliber include M855 ball firing a 62 grain FMJ (full metal jacketed) bullet s 3,035 FPS, M856 Tracer, M995 AP (armor piercing), MK318 MOD 0 62-grain Open-Tipped Match/Hollow-Point Boat-Tail, Mk 262 Mod 0/1 77-grain Open-Tipped Match/Hollow-Point Boat-Tail cartridge - and others.
M60, M219 and M240 Machine guns, and the M14 and M21 sniper rifles fire the 7.62 x 51mm cartridge
Cartridges in this caliber include M80 Ball (firing a 392 grain FMJ bullet at 2,750 FPS), M62 Tracer, M61 Armor Piercing, M118 Special Ball (sniper), M276 Dim Tracer - and others.
That's probably way more than you wanted to know - but there you are.
68W4P, 31B4P, 0341, 0844
24 years and counting...
"Even if you know that a certain illustration in an art book is from the Kama Sutra, don't point that out to your art history class. They will think you're a pervert." - seen at learnfrommyfail.com
Yup everything you needed to know haha, I actually learned a thing or two just now
Nice Doc!!... Are you sure you are not an Armourer?... LOL... MultiSkilled is our Doc!!.. Kudos Doc!!.. Awesome!!..Originally Posted by Grunt Medic TXARNG
"Neither a wise nor a brave man lies down on the tracks of history to wait for the train of the future to run over him."
Gen Dwight D. Eisenhower
"Illac est haud effrigo aux veneratio"
Me!
Exo - every NCO in a combat unit should be familiar with the concepts above. I had to look up some of the specifics and the more unusual loadings, but there you are.
68W4P, 31B4P, 0341, 0844
24 years and counting...
"Even if you know that a certain illustration in an art book is from the Kama Sutra, don't point that out to your art history class. They will think you're a pervert." - seen at learnfrommyfail.com
Agreed, but unfortunately the ballastic knowledge wasnt there in my day... only a small portion of NCOs had the interest to find out themselves... and even smaller portion of PTEs...
"Neither a wise nor a brave man lies down on the tracks of history to wait for the train of the future to run over him."
Gen Dwight D. Eisenhower
"Illac est haud effrigo aux veneratio"
Me!
<is hoping his first Platoon Sergeant is something like Grunt>
2LT Papa Chop
25A - Signal Officer
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