Thanks for the Marlin Services information. They sent a manual and in big red letters DO NOT USE HYPER VELOCITY AMMUNITION. Went turkey hunting in Kentucky this past week and was invited back for a spring squirrel hunt in june. Purchasing a marlin 981T. I like the idea of being able to shoot S, L, LR. Thanks again. Oh, almost forgot. 1 turkey, 8 1/2" beard, 1 1/8" spurs, 19 lbs. and the squirrels i saw will eat the the ones we have in FL. for breakfast.