A chronograph will tell you a lot about an individual rifle.The throat has a lot to do with how much powder it will handle and different bullets do too.Some rifles you can load over book max and some you cannot.It will also show you how just changing seating depth can really change your velocity too.It's a useful tool for sure.

~Molɔ̀ːn Labé Skýla~
As Bob Hagel would say"You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong."Good words of wisdom...............