 Many rifles marked ".22 Short, Long and Long Rifle" (or ".22 S, L, LR") will not shoot Shorts with the same accuracy as they will a Long Rifle round nor as accurately as a rifle designed for .22 Short.This is due to the excess chamber length needed to allow chambering of .22 LR cartridges.This requires the bullet from a .22 Short to travel a short distance before it engages the rifling, which is detrimental to accuracy.