Get a 3 die set. Once the brass is fired in your rifle the first time, just use the neck sizer die and headspace on the case shoulder instead of on the belt. Brass will last longer and good chance it will be more accurate. The 300 is very easy to reload for. You will find very acceptable performance with many powder and bullet combinations. The 4350's, 4831's, RL-22 burn rate zone is good for 168-200g slugs while stuff a bit slower burning works well for the 190-220g slugs.
Enjoy!
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