257 Weatherby with 131gr Blackjacks?

[Hoss50]

Has anyone loaded this combo yet, and what worked for you? I am going to try some soon hopefully and I want to start tracking down the right powder for the load.

My 1:8" twist barrel arrived earlier this week. Once it is fitted it will be time to burn some powder.

 

[jasonco]

RL26, RL25, IMR 7977, H1000, and Retumbo.

 

[Nomosendero]

That should be quite the Hammer.
Savage or Remage ?

 

[Hoss50]

That should be quite the Hammer.
Savage or Remage ?

Neither. Howage. It is a Weatherby Vanguard (Howa action) using a prefit barrel from Oregon Mountain Rifles. The rifle put the hurt on a cow elk for me awhile back, and I am hoping with this new barrel and 131gr Blackjacks it will put the hurt on more things for my freezer.

 

[Hoss50]

RL26, RL25, IMR 7977, H1000, and Retumbo.

The old barrel loved H1000 with Berger 115gr. Hopefully it will work with this one as I have a stash of H1000 for the old barrel. I don't have much of the others you mentioned, just a 1/2 lb. Of RL26.

 

[jasonco]

I'v a 25 Creedmoor and am a Cold Miracle and Black Jack Bullets member on the FB. Lots of stuff shared and discussed there. Still making a decision on a FASTER 257, right now 257 PRC, is at the top of the list.

 

[Hoss50]

I'v a 25 Creedmoor and am a Cold Miracle and Black Jack Bullets member on the FB. Lots of stuff shared and discussed there. Still making a decision on a FASTER 257, right now 257 PRC, is at the top of the list.

I don't facebook. I did email blackjack awhile back asking for starting data, but they never replied. I assume for liability reasons.

I guess I will back off my pet load for the 115gr Bergers and start there with H1000. I dont think my Berger load was super hot, but it shot really well. It would shoot .75 moa or less in a box stock basic Vanguard.

 

[jasonco]

He was working on some load dev, for the Weatherby, but nothing published as of yet?

 

[Nomosendero]

Neither. Howage. It is a Weatherby Vanguard (Howa action) using a prefit barrel from Oregon Mountain Rifles. The rifle put the hurt on a cow elk for me awhile back, and I am hoping with this new barrel and 131gr Blackjacks it will put the hurt on more things for my freezer.

I read I think on the 6mmbr site that barrels/nuts were available for the Howa, I like that option. I know it may be harder to get good stocks but I bet several are available.

 

[Hoss50]

I read I think on the 6mmbr site that barrels/nuts were available for the Howa, I like that option. I know it may be harder to get good stocks but I bet several are available.

I have a new Bell & Carlson stock for it. I am a little concerned that the fat barrel may be pretty wide for the barrel channel but we will see...worst cast I have to see if McMillan will do one for me. I have another howa action I can use this stock on if i have to.

 

[Hoss50]

A couple more pics.

 

[snox801]

H 1000 is always a staple for the .257. But i would imagine rl33 would pick up speed over h1000. Rl 33 has replaced h1000 in almost all my large capacity rounds except my .257 cause I didn't feel like doing more load work but may revisit it this summer.

 

[BEEMAN]

That's going to be a fun gun. Should get great performance and velocity. My 25-06AI was shot out so I just re barreled to 25-284.

 

[adam32]

Hopefully that 1/8 will stabilize the Blackjack...they recommend a 1/7 for most cartridges and a 1/7.5 for the faster ones like the Weatherby. Altitude will help if you're in the mountains but I think you'll be on the edge of stable after a couple hundred yards.