FMJ yaw and upset performance

[stanc]

Should we upgrade the cartridge from the 5.56 NATO to e.g., the Grendel, the LMG will be far more capable. Experience with its use by the infantry would likely result in it supplanting the GPMG in dismounted operations.

I agree. IMO, that's far more likely to occur than actually replacing 7.62 NATO in the system.

Back to the thread topic: I've seen mentions of the wounding potential of the Arisaka. I just found references in one of Stan's posts in another forum: http://history.amedd.army.mil/booksdocs/...gure45.jpg that helps illuminate the weight balance.

Thanks, John. I was trying to remember what book that was in.

Attaining the implied weight distribution with a single material may prove to be challenging...

Indeed. For Tony's interest -- the UK and Europe -- I suspect it will require an FMJ with a two-piece core, as in M855/SS109, although a one-piece core design similar to 5.45 M74 might possibly give the desired results.