Day at the range with W-W 6.5 Stayball

[Iron Worker]

Just back from the range burning 6.5 Staball in 3 cartridges
22/250 55gr sierra SPBT 42.5grs average velocity 3885 FPS 26"cut rifled bbl Spectacular accuracy 3/8ths groups 100 yds 40.6 grs behind 60gr Sierra TMK again under 1/2 inch 5 shot groups average Velocity 3700 FPS. 220 Swift 1885 28" Octagon bbl,couldn't use Magnetto Chron . But 43grs of 6.5 Staball again produced under 1/2 inch groups with 55gr Speer TNT. 6mm Creedmoor 5/10ths below Max charge 42.8 pushing 115 DTACs locked up the bolt on my custom Rem 700 . I'll back that off a couple of grs and try again. All and all thumbs up for 6.5 Stay Ball

 

[jjmp]

Great report !!! Thks for posting !,Cheers

 

[kiwikid]

Great info Iron Worker! It appears that your velocities with the 22-250 basically mirrors Wincheters info. That is quick for a 55gr pill.

 

[Iron Worker]

Well their reports were out of a 24" bbl.

 

[B23]

Iron Worker, is there any chance you'll be trying some Nosler 70gr Ballistic Tips in your 6CM with the StaBall 6.5 powder???

 

[Dmagna]

Johnnys reloading bench on YouTube did a temp stability test, for this powder. It still is not as good as i would think it would be for a powder that's advertised as being temp stabile

 

[Iron Worker]

Iron Worker, is there any chance you'll be trying some Nosler 70gr Ballistic Tips in your 6CM with the StaBall 6.5 powder???

No . My bbl is an 8"twist, also the powder is best with heavier bullets . I'd suggest trying W-W 760 for 70gr bullets.

 

[B23]

No . My bbl is an 8"twist, also the powder is best with heavier bullets . I'd suggest trying W-W 760 for 70gr bullets.

Mine 6CM build will be using a 20in 9tw Proof barrel and those 70gr BT's with RL16 will probably be what I try first, but I think that new StaBall 6.5 will work well with pretty much all of the different bullet weights in the Creedmoor size cases. Being that it's a ball powder, running out of room in the case and not being able to get enough in there, shouldn't be a problem like some of the other stick powders.