First time HEVI-Shot buyer has questions

[3" 870 Shell Shucker]

.665 is a great starting point in an 870.

The H13 7's will be awesome, and the 6's will be very good too.  I haven't tried the Mag Blend yet.

[longarm]

Well wouldn't you know it... A closer inspection of the regs and it appears no shot size smaller than #6 is allowed in Oregon.
So I ordered a box of #6.
May also order the #7s just to see what kind of pattern numbers I can get, but not for hunting. Oh well.