Hornady Sub-X 190gr vs 175gr Sub-X

[nakneker]

Is there a reason everyone buys up the 190gr Sub-x? the 175 grain version is easy to find in stock. I’ve only been shooting the 300 blackout for a couple years, I bought a ton of the 190 grain Sub-x when the opportunity presented itself but I’m burning through them fairly fast, I have a 9 boxes left and those will be gone in a couple months. I’m shooting at subsonic velocities 100 yards and in. The obvious answer is buy a box of the 175s, load and shoot, then you have first hand results but I thought I would ask first.

 

[Park ranger]

I guess you get better case fill with a 190 vs a 175 so better SD’s. In theory anyways

 

[3Sigma]

As mentioned, more case fill and easier to keep subsonic.

Also, if I'm going to go slow, I want as much mass as possible. 220gr would be even better IMHO.

 

[dantiff2]

As mentioned, more case fill and easier to keep subsonic.

Also, if I'm going to go slow, I want as much mass as possible. 220gr would be even better IMHO.

^^^ This^^^
Twist rate also has something to do with it. For guys running 10 twist 308's subsonic, the 190's don't stabilize but the 175's will. The BO was designed to be subsonic so most barrels are fast twist for the heavier pills.
Dan

 

[nakneker]

I think I’ll wait and see if more 190s show up. Thanks for the input.