in625shooter
Master
- Mar 21, 2008
- 2,136
- 48
If you think 30carbine or 45acp are a more effective round then 5.56 against the human body i think we are done. Someone on INGO was saying 45acp was better then 7.62x51 was that you also?
No, and I wasn't saying that here,what I did say was the 45 (as well as the 30 Carbine) has a larger power factor (muzzle velocity multiplied by bullet weight and divided by 1,000) That is an old Jeff Cooper (I think he is the one that came up with it) USPSA/IPSC use it today. The 45 ACP and 30 carbine have a larger power factor by that scale but that doesn't necessarily make them better. My reference to this was done because some are all about the numbers. While the power factor scale is good it is antiquated. Look at the improvement of 9mm JHP ammunition these days compared to the dismal stoppers it was 25 years ago. The improvement has nothing to do with power factor (they still have the same bullet weights at the same velocity) it has to do with ammo companies getting the bullets and materials bullets are made from to both expand and penetrate at those speeds. Something they didn't really have down all those years ago.
Each caliber has their own trait/ While a 45 or 30 carbine might be better (or at least adequate) at short ranges obviously they wouldn't (and couldn't) at farther ranges. Could a 5.56 do the job at close range??? Of course Thats why a lot of SWAT teams (including the FBI) has migrated to the M4 from the MP 5 system. Others have a concern of over penetration (which some tests have shown handgun rounds penetrate more than previously thought, not to mention the development in technology by the ammo companies as mentioned above that have benefited the 9mm)