i use a winchester underlever 15 shot tube feed for rabbits now not to get to complicated there is a thing called lock time when u look through your scope message goes to brain sqeeze trigger now on my winchester the hammer has to fall and strike the round now as u are aware most accurate guns are bolt action where it does away with the falling hammer bit so i am looking for a bolt tube feed why a tube feed well over 50 years i have shot a few rabbits but mainly at night from a toyota hi lux now i also have a krico bolt with sticking down mags and they tear the door top and u just seem to get going wen u run out and if you catch the lever the mag can drop out and get lost on the field so i am after a bolt tube feed but they are about 22 inches before the silencer so wots position about getting a barrel cut down cheers george any body on here do this cutting down work