That rifle was put together about 1995 by me. The barrel was installed by Montana rifle barrels. It was 32 in long originally.
Tha load I used for it was 105 grns of 3031, 800 grn hawk soft copper coated bullet, magnum primers. Shot very well never killed anything with it.
I did shoot it using up to 124 grns of 3031 but at that level it was too much for me to handle. Also tried 750 grn amax 50 bmg bullets but those boat tails kicked enough to numb my shoulder.
Glenn