twist rate

gpidaho wrote: Okay Guys this may get overly long winded so feel free to ignore this New B post if you like. I have a new to me 35cal. mould, a Saeco #352 it is a RNFP that weighs 240gr. when cast with my alloy. It is 1.040 from base to flat nose when cast with my alloy.  I have two 35cal. Handi rifle barrels, one 357mag one 35Rem. and would like to get one or both to work with this bullet. In the 357 when you drop a bullet in the bore and measure back you get 1.140 which means at max. COL  you would have a seating depth of only .140 in a 1.280 case. Not good.  On the other hand when using the same technique with the 35Rem. you end up with a bullet seated .498 deep in the 1.915 case at max. COL  this leaves the entire gas check and most of the first driving band below the case neck. Really not good. So a bullet I had hoped might work in both barrels doesn't seem well suited to either, which is too bad as the nose of this bullet fits both perfectly. Am I missing something obvious  to the more experienced?  Thoughts and ideas please.  GPI have never found or read a reliable report of seating depth having an effect on accuracy. If the nose on a bore rider engraves, and if a band seals the throat, from “gas-check-well-below-the-neck” to “gas-check-only-in-the-neck", they all seem to shoot accurately. All at ~1400-1600 fps, I know nothing about HV cast loads. I favor just the gc in the neck because it seems that the bullet aligns in the throat-but i cn't prove it. Load and shoot-then tell us.