Sunday is range day

[Flint62a1]

Got the M-40 out today. I wasn’t happy with the original load 40.5 I 4895 and an LCcase
These are the same, LC case fed primer and IMR4895. L-R 40.7 41 41.2 41.5
100 yards off the bench

 

[ColinW]

Good looking rifle! Bottom left looks like the winner. Which bullets? Have you tried adjusting the seating depth yet? I sent my R700 action into Patriot Valley Arms for a new barrel install with an M24 contour. I'm looking forward to having it back for new load development.

 

[Random Guy]

Your build looks nice. Bottom left target looks good, was that 41.2 of I-4895 with 168 SMK and Federal Match primer? Just curious.

 

[Flint62a1]

Yea bottom left is the 41.2 load IMR 4895 LC118lr brass fed 210 primer and a Sierra 168 match king
I wanted to try amd duplicate the LC 66 load but it wasn’t shooting very well and I kicked up the powder charge a bit.
Thanks, Kevin

 

[Flint62a1]

Good looking rifle! Bottom left looks like the winner. Which bullets? Have you tried adjusting the seating depth yet? I sent my R700 action into Patriot Valley Arms for a new barrel install with an M24 contour. I'm looking forward to having it back for new load development.

I havent played with the seating depth at all in truth I wanted to stay with the standard 2.280 308 OAL.

 

[ColinW]

I havent played with the seating depth at all in truth I wanted to stay with the standard 2.280 308 OAL.

Well, now that you've found an optimal powder charge weight, it may be beneficial to adjust the seating depth a bit. I did that with my .308 R700 shooting 175 SMK's and it shrunk the group even more. What you've got there certainly works, just tossing out ideas! I find my optimal charge weight, then adjust the seating depth, after that....It's off to longer distances.

 

[Flint62a1]

Well, now that you've found an optimal powder charge weight, it may be beneficial to adjust the seating depth a bit. I did that with my .308 R700 shooting 175 SMK's and it shrunk the group even more. What you've got there certainly works, just tossing out ideas! I find my optimal charge weight, then adjust the seating depth, after that....It's off to longer distances.

I guess that means I have to go back to the range and shoot it some more.
The struggle is real!

 

[ColinW]

I guess that means I have to go back to the range and shoot it some more.
The struggle is real!

Hey brother....Someone has to do it, ya know? I did seating depth adjustments with both 175 SMKs and 175 Berger VLD's. The VLD won for smallest group. Which I'm only partially upset with, because they cost a fair bit more than Sierra's to shoot. The price we pay for better bullets with superior external ballistics is the real struggle