7,62x51mm v .308win
- Thread starter TheCanuck
- Start date
Lee Enfield
CGN Ultra frequent flyer
- Location
- Republic of Alberta
There are only 2(+1/2) practical differences:
1) The .308 chamber is held to smaller tollerences (ergo higher pressures)
2a) 7.62mm must fall within standardized pressures to reliably operate MGs
2b) 7.62mm chambers are generally larger to facilitate reliable feeding & extraction during battlefield conditions.
The combination of 2a&b tends to lead to lower chamber pressures. However 7.62mm brass tends to have slightly heavier walls (increasing pressures for a given charge weight-handloaders beware-).
There is no difference in the exterior dimentions of the cartridge case.
D.
1) The .308 chamber is held to smaller tollerences (ergo higher pressures)
2a) 7.62mm must fall within standardized pressures to reliably operate MGs
2b) 7.62mm chambers are generally larger to facilitate reliable feeding & extraction during battlefield conditions.
The combination of 2a&b tends to lead to lower chamber pressures. However 7.62mm brass tends to have slightly heavier walls (increasing pressures for a given charge weight-handloaders beware-).
There is no difference in the exterior dimentions of the cartridge case.
D.
Faster does not mean more accurate. A 155 bullet pushed out at 2850 will still be super sonic at 1000 yards. I have had 155 going out at just over 3000 fps, but found the best accuracy at 2940 fps in my rifle with a 30 inch barrel.
- Location
- Ft. Mac. Alberta
Take it out to 30'06 if you want it to "go faster".TheCanuck said:
But, as Maynard stated, it doesn't need to go that fast!
Cat
TheCanuck said:
A faster bullet of the same weigh would have higher energy (kinetic energy is porportional to Vsqrd) and it would be more lethal. Its BC would change little as its based mainly on bullet shape and density... there is a onlya slight dependence on velocity.
But its lethality depends entirely on your accuracy... you have to hit it :wink:
NormB
- Location
- Ft. Mac. Alberta
it aqll depends on the make of rifle.TheCanuck said:
However, if you are using the rig for hunting also, I wouldn't worry about the extra FPS that you would get out of the 30'06
Like NormB said, hit the critter in the right spot and he will go down with a 308, no problem....
Cat
TheCanuck:
Don't tell anybody that it's a WSM, tell them it's a .308. :wink:
The '06 usually goes in a "Standard" length action, a "long" action will acomodate H&H and Weatherby length cartridges.
No magnums?!? :shock:
You can't shoot .22WRM or .222 Remington Magnum (the equivalent of 5.56 NATO); but you could shoot .458 Lott or 7mm STW, because they don't have "Magnum" in their name?
Don't tell anybody that it's a WSM, tell them it's a .308. :wink:
The '06 usually goes in a "Standard" length action, a "long" action will acomodate H&H and Weatherby length cartridges.
No magnums?!? :shock:
You can't shoot .22WRM or .222 Remington Magnum (the equivalent of 5.56 NATO); but you could shoot .458 Lott or 7mm STW, because they don't have "Magnum" in their name?
no higher than .30cal and no magnums.At least thats what i get of it. Military range at St-Bruno. God knows why, the army just bought a ton of .338 timberwolf. Sucks, got a nice 1k range 12 minutes from home and i cant use anything decent other than 30.06 and 308. No, i do not consider 6br and .223 to be decent cartridges. 6.5-284 is getting there though :twisted:
You got that right! ruffled a few feathers? :wink: :lol:
Don't worry, just kidding!Looking forward to spending a day at the range with you guys soon! Counting the days till i get my pal, rifle will be in next week.Got my base last week, will get rings and scope next week as well. We should all go and have a beer or a meal sometime soon!
P.S.: Early this morning?
- Location
- Ft. Mac. Alberta
TheCanuck said:
"Not decent " for what?? :shock:
Cat
