I have experience with the Hornady .30 and .35 caliber bullets in .30-40 Krag and .35 Remington, respectively, in 14" barrels. Both work very well. So does the 180 Speer designed for the .35 Remington Rifle. I have some Sierra SSP bullets in 7mm and .30 caliber, but haven't connected with them yet.
RonF