sorry guys I bought the gun as a thought it was a good deal heavy 26", bedded action, 250 bullets, and a can of imr4350. I really want to find the t.rate now that you guys asked.
If you have a cleaning rod and I'm sure you do, wrap a cleaning patch around your jag, so that it fits tightly in the bore.
Mark your cleaning rod in line with a reference point on the rifle. Also mark a top dead center back by the push handle.
Push your rod down the bore, until the "top dead center mark" is at the top again.
Make another mark at the same reference point used when you started pushing the jag.
Now, push the rod all the way through, take off the patch and pull the rod back.
Measure the distance between the two reference marks you used to establish where the rod started and where the rod made one complete turn.
The whole process will take less than five minutes. Maybe more if it's your first time.
The rifle was a good deal, especially if the throat is in decent condition. That barrel is worth $400. If you add the cost of installation and reamer, add another $250-$300.
The stock and action are worth a minimum of $350 and if it has a match trigger, depending on type, more.
If the throat is worn, that barrel can be set back by a gunsmith, until the rifling is almost pristine again. If the smith has a reamer, it may cost another $250 to bring it back to being a tack driver, if it ever was.
That rifle should be capable of 1/4 inch groups at 100m.
You don't mention if the scope came with the rifle.
There is no adjustable parallax on it that I can see.
You need a proper match grade scope, with adjustable parallax to get pinpoint accuracy.
The scope you have is likely only parallax free at 150m, this will give you up to 1/2 inch of parallax at short ranges and increase accordingly at longer ranges.