I have had great luck with IMR 4895 in a couple of my 243's...but I don't load any 87g bullets...have loaded 100g Nosler Partitions pushed with 34g of IMR 4895 and 55g Nosler Ballistic Tips with 43g of IMR 4895. For an 80g Hornady FMJ I loaded for my brother to use in Alaska for trapping and fur bearing I had the best of luck with 38g of IMR 4064. I know I loaded some 90g Nosler Ballistic tips but for some reason I can't find the load data I used (I know it was IMR 4895)...the Nosler Book showes a range of 33g - 37g for a 90g bullet.