RE: Slowest STW known to man
 

Well, I guess the guys at Chrony is correct. I moved the Chrony back to 15 feet past the muzzle. I shot my 7mmSTW loads and gained another 100fps velocity. I tried out some RL25 loads and got good velocity but accuracy was 1.1MOA average with 5-10MPH winds.

7mmSTW
160gr Accubond
74gr 7828
2990fps Average

160gr Accubond
80gr RL25
3120fps Average

RE: Slowest STW known to man
 

I sure wished I could help you as I am at mid stream myself on the darn thing. My rifle is a Sako 75 with a 25 inch, I think, barrel. I finally got it over 3300 with that 140gr but they were all over the place. I have a hunch...just a hunch mind you that it may perform better with the 150/160gr bullets. I did manage a 1/2 inch group with IMR4831at 3075 MV and gave up prior to deer season. I will not waste anymore powder in a rifle that underperforms a 7mag and I will not blow myself up stretching the evelope. My next testing will be with the 150 and 160gr bullet....all my buddies say it will shoot the 160's at 3300'/sec with no pressure problems...We'll see. regards, Rick.

RE: Slowest STW known to man
 

Actually I am pretty happy with 3150fps with 160gr bullet. I can live with that. I just couldn't live with 2900fps. I would just rechamber to a rem mag if thats the case. I didn't have any pressure signs with 80gr of RL25 but think I am stopping there.

RE: Slowest STW known to man
 

Would this be for magnums only or would it apply for regular cartridges also ?...

RE: Slowest STW known to man
 

yeah Im glad bigcountry finally got that thing to hit 3100 fps. I think he was ready to whoop my butt when he got it outta the case and I said "Oh so you're gonna shoot the turtle now huh??" :D

RE: Slowest STW known to man
 

RE: Slowest STW known to man
 

He didn't, I got a STW to go 3100fps

RE: Slowest STW known to man
 

my nosler manual lists 85 gr aa8700start 3058 89 max 3184 for 7mmstw the latter 98% case cap

RE: Slowest STW known to man
 

it was a JOKE!!! I do what I can to get the bigboy rattled! :D

RE: Slowest STW known to man
 

hey BChave you chronyed a 139 or 140 garin bullet in your STW?.I'm thinking of building one on an older sako action.

Thanks,
CB