And not ALL 180s in .30-cal from the same manufacturer (i.e. - Speer, Hornady, Barnes, etc) give the same exact results in psi and MV, given the same load from the same rifle, as indicated in manuals. And that applies to other same weight bullets in other calibers from the same companies with differences in bullet structure, such as bonded vs non-bonded, mono metal vs lead core with gilding metal jacket, etc. While listed in manuals as giving the same results, often there can be significant distinctions. One example: The 225gr NP/.35-cal gave significantly higher MV from my .35 Whelen than the 225 AB using an identical load from the same rifle.
Bob
www.bigbores.ca
