Hello BuckBuster, My point with my post, "I'm pretty much old school, believe that if one were to compare the older cartridges/calibers to the "new" designer ones that are being promoted today there's really not enough difference to warrant changing over if one considers the distances being hunted at and the game that is being harvested." is one where I am saying that the old school calibers aren't so much different than the newer designer ones. From the Nosler reloading guide 8, I chose the fairly universal 30 caliber 180 grain bullet for a comparison. We have the "ole school" 308 Norma mag@2900fps, the 300 H&H@2900fps, 300WinMag@3100fps, 300Weatherby@3200fps. Now the designer "new school" 30 calibers 300SAUM@2900fps, 30-375@3250fps and the 300RUM@3200fps. Ole school averages out for the four calibers to 3025 fps and new school averages out to 3116fps.With these comparative ballistics, UNLESS one has to eek/squeak out every single drop of feet-per-second there's only about 400fps fro the slowest ole school caliber from the fastest new school. With these comparative ballistics, UNLESS one has to eek/squeak out every single drop of feet-per-second there's only about 400fps difference from ole school vs new school cartridges; and, averaged out between ole school and designer calibers it's 3025fps vs 3116fps for designer calibers.The 300 RUM is quite a bit more than the 300win. mag , as for both being 300 magnums ! It also has a lot more recoil then the 300 Winchester Magnum and that needs to be considered too, a break on the RUM is a big help !
Last edited: