I am looking for the mag length of the Savage Weather Warrior 16/116 FCSS in 270 Win, i am planning of converting it to a 284 Win and try to figure how much mag room i have to play with. Thanks for any help.
Cartridge length will not be an issue changing to a 284Win, and may not be an issue with the slightly larger (.0302") case body diameter. You could probably just grind/sand the guide rails on the mag follower to make it feed, if any alteration is needed at all. Both of these cartridges share the same case head diameter so a new bolt head won't be necessary. Sounds like an easy conversion.
I fed a couple of 6.5x284 rounds through my remington 25-06 without chambering of course and they worked great. My COAL will be about 3.475 because I am going to seat them LONG and I am not sure if the mag is long enough.