- Messages
- 1,310
- Reactions
- 911
The R in 7.62x54R stands for Remington. Kip
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
In general, if you see an "R" in the designation, it is a cartridge designed under the "inch" standard, but converted to metric measurements for the european market..
The R in 7.62x54R stands for Remington. Kip
No, I was not being serious. Why would Remington have anything to do with this Russian(though it does in fact stand for rimmed, not Russian) round? I guess I should have put a little smiley face icon or something. The best jokes are the ones you have to explain. Kip
Why would Remington have anything to do with this Russian
So, what I'm gathering is the answer to my original interrogative is a 7.62 round is basically a 30 caliber.
Thank you everybody for your responses.
.310 diameter if that is what you are asking
It really does come down to the variation in design as to what parameter was used to measure the caliber.
Also worth noting is that caliber is often a measure of land diameter, not groove diameter, so a 7.62x39mm/7.62x54mmR bore diameter is indeed 7.62mm (.30, inline with the old 3-line designation) at its narrowest, but the grooves are 7.92mm, so the bullet diameter needs to be larger than the narrowest measurement of the bore.
7.62x51mm is actually a .308 (7.82mm) bullet diameter.
Again, it's just what point was used for measurement, much like the 45 Colt/.45ACP and 9mm variations mentioned above.
Right.
Okay, but my main question still is: what makes a 7.62x51 a .308? and what mathematical calculations do I use to come up with that :huh:
And what would a 7.62x39 be?
In the European countries they use bullet diameter and CASE length (not overall length) in metric. So for .30 caliber they call it 7.62. So ALL of their .30 caliber guns including pistols have names like 7.62x25, 7.62x39, 7.62x51, 7.62x54r (r is for rimmed rounds). They dont come up with cool little marking names like we do.