The grand slams are not a premium bullet and in my testing I've never had good accuracy with them. Because of this I've never used them hunting and can't report their usefulness on game.
If you want a premium bullet I suggest you look to Hornady's interbond, Nosler's accubond or partition, Swift's A-Frame, northforks, TBBCs or Woodleighs.
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.
Here is a good load for you, Using IMR 4895with 52.5 grs. will give you the vel you want and 3470ftlbs.Never had problems with grand slam bullets but have heard some people coun,t get them to grooup they way they wanted. You can only tell by trying some.But here are many other good bullets on the market.Nosler,and sieera good ones as well.
May not be a premium bullet but my partner uses160 GSin 280rem, it shoots them awesome. It has worked on everything he has pointed them at which includes black bear, moose, elk and deer. The bullets we have recovered were perfect mushrooms and retained 60 - 70% of there original weight...not to shabby IMHO for a standard bullet!
I however have not got them to shoot as well asothers in my 7mm rem mag.
Only one way to find out load and shoot them. I agree a lot of good bullets to choose from,best of luck.
Grand Slams in the 35 Whelen?
