The 7x65R would be okay for deer but marginal for elk/moose at distance.I would want the near equivilent of a 300mag or 7 mag for distance and knockdown power.

Sorry, but I just couldn't deal with a semiauto.Seen to many problems and have had too many jams with those I have owned.Had a buddy who had his jam up while hunting only to fix it and go back the next day and get charged by a black bear sow. He killed the charging bear but cringes with the thought of what would have happened had the bear charged him a day earlier.Mine have had poor accuracy--2-3 inches at 100yds. As discussed here previously the M1A is probably the most accurate reliable semi but it basically comes in 308.

The desired Double above would be reliable and work.Oh well, I can dream.