PH, I had a factory 10" encore in 7mm BR that was the most accurate encore I ever owned. I also had a 10" 7x30 in a contender and the 7BR was MUCH BETTER option for deer hunting. The 7BR would do 200 yards with ease. My son now now has all my contenders and encores but one my 30 Herrett contender. My experience is based on actual field experience with these calibers. First year encore options in 10" were 44 mag, 7BR, 480 Ruger, 7-08 Rem, 454 Cas,and 7.62x39, I had all but the 7.62x39. I hope this helps. Lonnie