The boomer14 is best purchased in 5.56
Ruger Mini Thirty vs Mini 14 in 300 Blackout
Tyler Martinez
Carter Ortiz
I would have gone with the Mini 30. I already have a 14 in .223 so that's naturally the next one to get. Like FPBP wrote I would only go for .300 Memeout if I was going to put a can on it.
Juan Long
This post really shoots muh doggo
Jack Sanders
Neither. If the 30 can't shoot steel cased then it's near useless because most 7.62x39 is steel cased. I would rather get a SKS (yes even with current prices).
As for 300 Blackout, it has it's uses but it's generally for short barrel /short overall length rifle. So I wouldn't get a Mini 14 in 300 Blackout unless you were somehow getting ammo for real cheap and can't own a AR.
300 blackout's main selling points are it's usage in short barrels (which the Mini 14 doesn't have), it's compatibility with the AR platform (which the Mini doesn't have), and the fact that you can take your old split 5.56 cases and cut them down to 300 blackout length. The only reason to buy a Mini 14 in 300 blackout would be if you lived somewhere where you can't own AR's.
Also, mini mags are expensive compared to AR mags.
Samuel Howard
.223 is almost the same case dimensions as a 9mmx19