I start at 25 or 50 yards and all holes must be touching before i move further out.

I use BH209 powder and never swab at the range unless i shoot some conicals with lube on them. Using T7 you may need to run a damp patch then a dry patch between shots...it not really a big deal.

I use a Led Sled for load development and then just bags and then verify the load with only my support or whatever im going to use while hunting....such as a hunting stick.