87 gr + and 6-6.5x47 lapua

[stretch257]

I am looking to build a rifle in 6x47 lapua and shoot 87 gr vmax and up. I plan to build on a Black Widow. Kreiger or Broughton barrel with vias break and mbr stock. Looking to see what velocity I should expect with 87s and 107s. Building for 600 yard competition and prarie dogs secondary. What would be a good twist to choose. And best powder for both weights. Thanks

 

[NCVarhtr]

For the 107 GR Bullets, you will need an 8" twist. The 87 Gr Bullets will shoot well in that twist also based on my experience with 8" twist barrels....

 

[MrMajestic]

8tw, H4350, 3350 fps from 24" barrel and the 88 grain Berger

 

[stretch257]

What do they claim velocity change per inch of barrel would be on it. I was thinking 28 inch tube. Thanks

 

[WyleWD]

What do they claim velocity change per inch of barrel would be on it. I was thinking 28 inch tube. Thanks

Depending upon a few different factors.... 25-30fps. WD

 

[RDavies]

I have a 10" twist Dasher which shoots great with the 87gn Berger VLDs and 88gn LDs. I had previously tried heavier pills but they did not work well with the 10" twist. With the larger 6/6.5x47 and light bullets, maybe try Varget. I used H4350 with 105s in my 6/6.5x47, but Varget is worth a try with the lighter pills if you don't get the ES/SD you want with H4350.