One more thing, there are some 240 weatherby reamers floating around out there with zero freebore. If someone else is cutting your chamber for you, I would make them double check that it is a saami reamer and not a zero freebore reamer that they plan on using.
For the gunsmiths: 240 Weatherby question
- Thread starter 8x68s
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MZmoose
Well-Known Member
Didn't see where you said what twist your running. Your gonna need a fast twist for the long bullets, throat won't matter if they don't stabilize.
By design, it does not need a lot of jump, unlike most WBTY chamberings. If you look at most longer bullets such as the Cayuga 100g hunting bullet recommend an optimal freebore of .100-.160" (https://patriotvalleyarms.com/flm-6mm-100gr-cayuga-hunting-bullets-50ct/). This will allow you the flexibility to get closer to the land. If you have throated longer, you will have a hard time chasing near the lands if that happens to be where the accuracy zone is. This is why zero freebore exist, as @DJ Fergus noted.
8x68s
Well-Known Member
I have spec'd 1:7.5 twist for the heavier bullets.
I think you chose well. Let us know how it shoots when you get it dialed in.
MZmoose
Well-Known Member
You're on top of it! Good luck!
8x68s
Well-Known Member
thank you, gentlemen. I appreciate your input. I have a lot of info in my head but I never fail to add more when I ask questions here. Cheers!
