Hey guys, just purchased my second model 70 last weekend, a brand new model 70 featherweight in 7x57 mauser. For those of you who have used this caliber, what bullet weights do you recommend for plains game up to kudu in size? I just purchased a box of 160 gr. partitions for load development, but was wondering if the 140 gr. version would work just as good. I'll be brighing my other model 70, a 416 safari express for the larger species (eland). Thanks for your help in advance!