Grendel as a Universal Infantry Cartridge

[LRRPF52]

Like the US, they copied the original SS109 bullet.

But, also like the US, the UK (and, IIRC, some other countries) made changes to the basic design.

I don't remember where I read it (Maybe on Tony Williams' site?), but my info is that the first version of SS109 used by the Brits fragmented like M855, so it was redesigned with a thicker jacket specifically to prevent fragmentation.

Also, the Swiss company RUAG currently markets an unleaded version of SS109 which is advertised as non-fragmenting.

IIRC, the Swedish SS109 is also reportedly non-fragmenting.

Yeah, I read on D. Water's 5.56 timeline that the Swedes felt that the M193 and 1/12 rifling was inhumane, so they apparently had some input into driving the direction of the NATO /7 twist for the 5.56 NATO 62 gr M855 to be 1/7 so that it would fragment less, but thin jackets help it do it anyway in the US loadings. Since Sweden is not even a part of NATO, and is one of the most non-combative nations now, I don't see why anyone would take any input from them on small arms wound ballistics, although they are the go-to guys for rockets, steel, artillery pieces, and other excellent war material they sell to us heathens, while assuming an air of moral superiority in the global scheme. I have close relations with Sweden, to include ancestry and living relatives, so I reserve the right to place criticism where it is due with them, especially from my Finnish side...lots of rivalry there.

You are fighting in the opposite direction with people who are looking for humane small arms cartridges when dealing with that mindset. I want the bullet to come apart, since the steel penetrator is for hard targets anyway. Thin jackets and 2600+ fps does the job fine.