Cast bullets in .35 Whelen - What weight?

[Black Jaque Janaviac]

I've got a .35 Whelen bbl with a 1:14" twist.  I'm thinking of getting a mold for a heavy weight bullet.  

Would the 1:14" twist be sufficient for a 275grain to 300 grain bullet?  

I'm thinking I'll paper patch the bullet so I can run it up to 2200 fps which should be a snap for the Whelen.