Although I don't own a model 41, over the years, I've found that .22s can be fussy about what ammo they like, and don't like.
What I always did when I got a different .22, was to go down to the local gun shop(when we had a good one that stocked a lot of stuff) and buy a box of everything they had, try them all, and when I found what the gun liked best, bought all of that lot number I could find! Yes, .22 ammo varies quite a bit from lot to lot, which really sucks!
Ammo make a BIG difference! I've shot 50 yard groups, with the same gun that varied from 1/2" to 3", just by changing ammo!