I just got a Stevens 44 in 22lr. It has a very nice old Lyman tang sight and the original buckhorn sight needed to be removed to allow use of the Lyman. I love this rifle and it is very accurate. I have several 3/8" blanks but it is smaller than that and can't seem to find any size but 3/8. The best I can come up with is 9/32" but maybe a 1/4? Any help is appreciated. Thanks