Someone Ackleyerized it, so it's somewhere between a 250 Savage and 257 Roberts. It's a 15% capacity increase, which should amount to something close to a 4% velocity increase (ie: 2600 fps with a 115 grain should now go 2700 fps, which is about like a 257 Roberts).
Looks like better than standard wood, plus an ebony tip, which I don't remember seeing on Ruger 77s in the past. Got a good enough deal that it really doesn't matter at this point because it should just be a fun little gun.
Ackley's favorite imp cartridge was the 250 Savage. He said it gained more than any other cartridge by improving it. I used to struggle with improved cartridge's quite a bit. kept thinking what I needed to do was have my 243 improved. never did it and doubt I ever will. I think at this point I only wanted to do it to have something different. A friend has one on a Marlin bolt rifle, 250 Ack, don't remember the model, a newer one. I've shot it once and it it shot very well. It did seem to me that the cartridge didn't chamber as well as it should have. Maybe a problem by the guy that did the rifle.
Looks good, i have always liked ruger rifles. You are lucky to be able to use Gunbrokers: Many times i see something i like and would buy but lots of sellers in there will not ship internationally, eventhough i have a place that has a valid FFL to have it shipped to. I guess on the bright side i save money.
When it come to turkey calls some of us have only one or two. Then there are the ones that have and can't go in the turkey woods without at least a dozen or so. Remember that old calls still work. Just take a little time and freshen up your old style calling tactics.There are most likely more than a hundred types of turkey calls out there on the market. Just waiting for you to pull out the green and spend it on them. From Hunter's Specialties, Lynch, and even the famous Drury brothers calls...