recently bought a mint 9422 m for pccla,i have installed a Williams receiver peep and I am not sure what height lyman dovetail globe for factory front ramp,setup works for belly hold on most animals with rear sight bottomed out, 40gr maxi mag @1850 fps, hits center of chicken with belly/leg hold, ballistics tell me that belly/leg hold would work out to rams but it is always nice to have some adjustability if needed