In my opinion the 308 win is best "deer rifle" you can have. Most any thing short of half mile shooting in the mountains can be done with it. With right bullet, you can take anything from coyote to black bear. 308 was the first hunting rifle I bought, killed my first deer with it. And after 16...
Barnes should be loaded different than the nosler bullet. Nosler is a classic cup and core bullet. barnes is a all copper bullet. work your loads from scratch for the barnes bullet. reading the manuels and some research would have told you this.
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