RE: Most efficient cartridge?
 

.222

RE: Most efficient cartridge?
 

Funny that you asked that guestion, I just read an article in last months issue of Guns and Ammo. The writer said the win 308 was one of the best cal. for efficiency. Just my $.02 which isn't worth much!
Zeak

RE: Most efficient cartridge?
 

I remember reading somthing about the .308 being very efficient at turning a smaller amount of powder into lots of velocity. The article was comparing big game hunting rounds and did not mention .22 rimfires.

Just my $.02 (Canadian) which really isn't worth spit these days.

RE: Most efficient cartridge?
 

My .50BMG is more efficient in killing anything I was to aim it at...'nuff said.

RE: Most efficient cartridge?
 

Hk45USP,
Good answer.
I hope to find out soon how efficient the 6mm BR Remington is.

Rem. 222

RE: Most efficient cartridge?
 

If you're figuring in powder vs wieght with speed figured in...I would think that one of the 22 caliber cartridges would be right up there. Maybe a 223 or 22-250 or 220 swift...something like that.