300 WM--- Best Velocity for Accuracy?

[samson]

For all you guys shooting a 300 WM. At what velocity do you seem to get your best accuracy? I am shooting a 200 Grn Accubond and 208 Amax. At first I was trying to get the fastest velocity with no pressure signs, but I am learning that this may not be the best for accuracy. I will be using this for hunting purposes.

 

[RockZ]

For my savage 300 win with 200smk's and 26" barrel I found the best combination of velocity and accuracy at 2850fps .
I was using imr 7828ssc.

 

[SES50]

With a 26" T/C Encore Barrel and 200 Gn TSX I found the best accuracy to be at 2880 fps.

 

[magicofmt]

200 gr accubonds at 2860 or so was best for my gun with H-1000. Tried faster to 3100 but no accuacy. 26 in barrel

 

[ivo]

178gr Amax 75gr RL22 3028fps .5moa
180gr NAB 82gr H1000 3050fps .5moa
180gr Scirocco 74.5gr RL22 3175fps .5moa
208gr Amax 70.5gr H4831sc 2880fps .5moa

I don't load for speed just sometimes I get it sometimes I don't.
I just noticed my velocities seem to be on the high end... I treat my barrels with Gun Juice, maybe thats why, I don't know but there are no pressure sings in my rifle at these velocities but there may be in your rifle. Start 10% less charge and work up.

Ivo

 

[magicofmt]

Ivo, do you get a cruching sound using 82 grs of H-1000? I use 80grs and it's a full case load with slight crushing of the powder with 180 gr Scirocos

 

[RockZ]

IVO,
Looks like your velocities are appropriate.
I shoot the 200's at 2850 and the 180's at 3100.

 

[ivo]

1.)Yes, the charge with h1000 is a compressed load.
2.)I thought my velocities sounded kind of high but I guess not. Maybe I've been shooting the .308 too much lately.

 

[Moman]

ivo, my 300 WM has its best accuracy at 2900 fps with the 180 AB. Occassionally I'll speed it up a little and the groups will open up a bit. Not too bad, still under .75 MOA.