Well to me shooting Hevi-13 7's in 3.5" at a taped 40yds I would say this. Now this is with the older stuff.
200 nothing to write home about for sure.
250 would be about avg or decent for most guns and turkey chokes
275 would be what I call good
300 would be what I call excellent
325 would be outstanding
350 or more would be extroadinary
In the older stuff in Hevi-13 3" #7's, I would say this.
200 would be a nice even pattern to kill easily at 40yds.
230 would be a good pattern
250 would be a very good pattern
260-270 would be excellent
280 or more would be outstanding