Its a 25 cal rimfire for nail guns with a bullet in it.
Nit picky time...... 27 cal.
To heck with the round, let's talk about the new Savage. Detachable 8 round, flush, rotary mag and less than 4.5lbs for $300 +/-. I'm fairly warm on the cartridge but a light and handy (albeit ugly as sin) truck and woods bummin gun puts me over the top.
I'm curious as to something though....... How bad will the velocity drop if/when it's fired from an 18" barrel? At this point I don't think any of us have a clue but if it's not too bad I'll be cutting it down.