I've got a 7mm-08 build going to the smith in the next few days,my question is what barrel length?I would like to get 2750-2800 fps with a 162 a-max.Fyi, I have a 29" bartlein 1-9 twist 5r barrel so I guess I could go 28" or shorter.I would prefer 23"-25" but if that's not going to get me the velocity I want than obviously I will go longer,any advice is appreciated ,thanks.
- Thread starter glock270
- Start date
I don't think you would have any trouble at all getting your stated velocities from a 24" tube. Maybe even 22" with the right load.
22-25" will get you in the ball park.
When I tested the 162AMAX in my 708 last year the best load with 2000MR was 41grs(around 2650) from my 24" tube, XBR8208 will give you slightly more speed from a 24" tube, not sure how accurate that powder would be though, if it were me Id go 28".
My 7-08 build is at beanlands waiting in line. I'm going 25'' on mine.
My personal 22" 708 runs 162s @ 2725-2750 with H4350. I am building myself a 26" 708 with hopes of 2825-2850.
You must be running it pretty hot, Hodgdon get 2600 and change with 45grs in a 24".
In the last few years Hodgdon lowered their H4350/162 AMAX max load from 48.0 to whatever it is today. I run 48 grns in my rifle. No issues in thousands of rounds.
I'm gonna run a 27" tube on the new 7-08 build, push em fast and hard haha
