Don't take this wrong but #7 shot should not be used. The smallest if ya must should be #6 which I used for years and then have gone to #4s with reduced shot charge to give me more PFS which just penetrates harder- patterns better.

There are alot of people here who I be use #6 or #5.

Range if using #7 shot - NO more than 20 yards and closer than that!

Just my opinion...

JW