.243 Winchester as a military calibre?

bushpig1998

Active member
I've been doing a lot of reading and comparing. The 7.62 NATO has too much recoil to be used as an AR round, the 5.56 is too small and not powerful enough....the 6x45 is a good idea, but just lacks that extra bit of punch.

So here's my idea? Why not use the .243? It has less recoil than the 7.62 NATO, yet has the same down range performance - good penetration and excellent ballistics. It will require that we start sing modified AR10's instead of M16/M4's - the magazine well in the M16/M4 series is not long enough to accomodate the longer .243 rounds, BUT is would really go a long way towards having a common round for infantry. Instead of 7.62 for MG and 5.56 for AR, we would have one round for both!
The 6mm bullet of the .243 offers better sectional density and ballistic coeffecient, thus also better acuracy than either the 5.56 or 7.62. since it uses necked down 7.62NATO brass, we already have half of the manufacturing out of the way!
 
The reason we have 7.62mm and 5.56mm is because of NATO standard.

5.56mm is a good penetration round, but I could go for a .243 .

I'd prefer a 7.62mm in my M240, thank you. Besides The M16/M4 and he M249 share the same round, plus it would cost a fortune to make a large enough amount of ammo for the military.

Outstanding idea though.
 
I personally like and have used the 7mm and found it to be the most repeatable shot group at 500 yards but I haven't tried it at anything further. That was the most devastating weapon used by Charles Whitman when he used the tower at UTA to kill so many people. I hate to use that analogy but the police said later that he was picking off targets from between columns three feet apart.
 
Heck maybe in the future well all be killing each other with 9mm rifle bullets and 12mm handgun ammo. OUCH!
 
Personnally, I would prefer something like a .224 Weatherby Mag necked out to .25 caliber. Or possibly just a .25 Remington.

Either of which are about half-way between the .223 & .308 in case diameter.

http://www.again.net/~steve/jpg/cd223remington.jpg
.378 x 1.760

http://www.again.net/~steve/jpg/cd224weatherbymagnum.jpg
.430 x 1.925

http://www.again.net/~steve/jpg/cd25remington.jpg
.422 x 2.050

http://www.again.net/~steve/jpg/cd308winchester.jpg
.473 x 2.015

A 100gr bullet is a nice round number but could be as high as 120gr depending on which gave the best ballistic performance.
 
Back
Top