Lets start over: how do you design a GPC?

[cory]

I don't disagree. What I question is if it is possible to get anywhere close to 130gr in a practical lead free bullet. This has been discussed ad nauseum on the MG&A forum, and most of the knowledgeable individuals there agree that ~108gr is about max.

That's a good question. You've got my wheels turning Stanc. Let me throw this out there. What's the implications of a lead free bullet that's more steel and less copper, relative to the current common ratios? Could that move us towards the weight we're looking for?

That's technically possible, of course, but who seriously thinks the US and NATO would go for it?...

I'd say the odds are about as good as the US and NATO replacing the 5.56 and 7.62 with a GPC.

I think the French use 55gr for rifles, and 62gr for LMGs, but that was accidental, not planned. (Besides, do we really want to emulate the French? :eek: :p )

What can I say when the French are... No on second thought I can't say it.

Where the French blunder into a good idea. Wait one second that's not a good idea in the 5.56. There's no legitimate reason to use a smaller round in the rifle than the LMG, unless you're going to use 77 SMKs in the LMGs and DMs.

However, in the Grendel it makes a lot of sense assuming we can accomplish a round in the 130gr family.