4000 MR for 6.25-284?

[RileyL]

6.5-284 it's got a 1-8 Douglas barrel on it

 

[brant89]

A fellow member here rebarrelled a 1910 Mex Mauser for me in 6.5-284. I'm hoping it will shoot the 143's as well as yours does the 147's. Any update on velocity? What's the barrel length?

 

[RileyL]

No update on velocity just yet. Not a reliable source but 4000 Mr shoots very similar to r22 and that says 2850 with 52.5 in Hornadys book. It's a 26" barrel and I do still plan to get over a chronograph here hopefully soon ish.