With 869 powder, for example, the 26 will burn 90 gr. with 120 gr. bullets and I'd think the 28 would be pretty close with 140's, etc. The 7mm RUM burns 100+ gr. 869 with 140's. The difference in velocity is going to be much less than the difference in powder burned. Or said another way, that extra 10+ gr. 869 won't produce enough extra velocity to make that big of a difference.
It seems to me, the Creedmoor/.260 discussion may be a rough parallel. The Creed is set up to accommodate longer, heavy for caliber bullets and still fit a SA box mag. And, the performance difference between those two isn't that remarkable.
We've never had the selection of powders currently available. And with those selections, std. rounds can sometimes do extraordinary things. Bigger is better, generally, but not always the optimal choice...
With Nosler's marketing prowess, I think the 28 will be a success. They'll see to it.
DF
Last edited by Dirtfarmer; 01/21/15.
