Apples and oranges you say?
Not really. Out of longer barrel (6"+) a hot 10mm is surprisingly close to .300blk performance. You can expect 1700fps @ 135gr for the 10mm, and and 2000-2200fps @ 125gr for the .300blk.
It begs, of course, the question of platform. Since Kriss is going 10mm on the Vector, that would be a viable option, as are other carbines that use Glock G20 mags.
There's also the G40, which gives you 800lb-ft in a surprisingly reasonable form factor.
So the ballistics seem somewhat comparable. What about the terminal performance?
The main problem is see is bullet suitability. 10mm bullets aren't designed for 1700fps. JHPs are way oversped and will under penetrate or come apart. FMJs won't do the damage you want (let's put aside the Lehigh/Underwood load for now).
On the 300BLK side, you have bullets that are designed for higher speeds being driven somewhat slow. No .30 cal bullet can be optimized for a speed range from 300blk to .308 to 300winmag. Perhaps a Barnes or Lehigh non lead round might be an exception?
What about ammo capacity? The G40 9" is powerful, but you only get 15 rounds.
The AR platform of .300blk gives you more ammo capacity. But can you handle a .300blk pistol with much dexterity? Is it really desirable to have a ton of ammo capacity if that mag is always getting in the way? Drop down to a 20rd mag for handling and the capacity difference is almost rendered moot.
I'd be really curious to see if someone shot a qual course with a 9" barrel G40 versus a much heavier .300blk pistol.
Which do you think would perform better in terms of speed and accuracy: long slide Glock or short barrel .300blk pistol?
Not really. Out of longer barrel (6"+) a hot 10mm is surprisingly close to .300blk performance. You can expect 1700fps @ 135gr for the 10mm, and and 2000-2200fps @ 125gr for the .300blk.
It begs, of course, the question of platform. Since Kriss is going 10mm on the Vector, that would be a viable option, as are other carbines that use Glock G20 mags.
There's also the G40, which gives you 800lb-ft in a surprisingly reasonable form factor.
So the ballistics seem somewhat comparable. What about the terminal performance?
The main problem is see is bullet suitability. 10mm bullets aren't designed for 1700fps. JHPs are way oversped and will under penetrate or come apart. FMJs won't do the damage you want (let's put aside the Lehigh/Underwood load for now).
On the 300BLK side, you have bullets that are designed for higher speeds being driven somewhat slow. No .30 cal bullet can be optimized for a speed range from 300blk to .308 to 300winmag. Perhaps a Barnes or Lehigh non lead round might be an exception?
What about ammo capacity? The G40 9" is powerful, but you only get 15 rounds.
The AR platform of .300blk gives you more ammo capacity. But can you handle a .300blk pistol with much dexterity? Is it really desirable to have a ton of ammo capacity if that mag is always getting in the way? Drop down to a 20rd mag for handling and the capacity difference is almost rendered moot.
I'd be really curious to see if someone shot a qual course with a 9" barrel G40 versus a much heavier .300blk pistol.
Which do you think would perform better in terms of speed and accuracy: long slide Glock or short barrel .300blk pistol?
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I mean 10mm is fantastic. And I understand what some are saying about how you can carry a 10mm on your hip. But if you are not carrying it around with you I'll take a 300blk AR every time.
