Let's define a "shooter"...

[C grade]

That is a great question and I think each of us have a unique "line" between shooter and collectible. For me it is a shooter if shooting it regularly will not diminish the value of the gun. I have a few Parkers that I shoot regularly, other high condition guns I shoot rarely because regular shooting will diminish their value and then a rare few that are rare and in high condition and shooting them could cause significant loss of value and also the "loss" of one of a diminishing number of such Parkers. I treasure my shooter as much ,if not more ,than my other Parker but love them all.
David

[Bill Murphy]

Dave Dwyer has posted the "collector's definition" of a shooter. It's all about condition and future value, not about damage or barrels blowing up. If I can shoot a gun or hunt a collector gun without changing the condition or value, it is a shooter, regardless of its monetary value. Some other posters came close, but Dave hit it on the head.