[230FMJ]

“—gee whiz—next they’ll think up the .30 Luger or Mauser cartridges—”

Except those 2 are bottle necks with the same case diameter as the 9mm, whereas the 30SC has a case diameter close to a 32ACP which allows the higher round count in similar sized magazines.

I’ll reserve judgment until I get a chance to test it out.

[Travis McGee]

Another orphan caliber? Hard to imagine displacing 9mm unless the ballistics are just incredible.

[Jeff Chandler]

those 2 are bottle necks with the same case diameter as the 9mm, whereas the 30SC has a case diameter close to a 32ACP which allows the higher round count in similar sized magazines.

Which also is an advantage over the screaming hot Tokarev round.

[Raymann]

A lot of people forget that the .380 was a dead round until about 15 years ago. I don’t think I even knew about it until ruger came out with the lcp.

So if this offers better performance then the 380 at the same price then good. This is coming from someone who owns several 380’s.

[Myrddin]

I haven't looked at the specs yet, but I reload all of my center fire cartridges. The 9mm is not a straight walled brass casing. It is slightly tapered. The straight wall cases e.g. 45Auto, 40S&W, 10mm are easier to reload and consistently headspace on the case mouth. It makes them usable in a revolver cylinder without need of "moon clips". The flaring and crimping of the case mouth is easier with a straight wall.

Let's see how this plays out. The ubiquitous nature of 9mm lead to high quality and choice in suppliers. Bringing out a new caliber risks being an orphan. I found a very nice Tanfoglio 1911 pattern pistol at a local pawn shop. It had been there for a couple months. A trip to Sportsmanswarehouse was revealing. The pistol was chambered in 38 Super. There was exactly ONE box of ammo from a single supplier. No thanks. I'm already smarting from the 5.7x28 supply shortage.

I'm waiting on my LGS to notify me when the S&W M&P 2.0 4.6" 10mm arrives.