RE: Grand Slams in the 35 Whelen?
First of all because it's a bolt action you can use pointed bullets, something that reloading data won't show. Second Hodgdon does show with BL-C 2503fps. Like I said you can use pointed bullets with your 98. For the traditional 35 flat point bullets the Grand Slam is fine, but I would with you action move up to Nosler Part. in 35.