i have one of the thumb hole target model Bmag 17WSM
it will do 1/2" or so at 100,,,BUT,,,i have beded it and did some muzzle work,,,(had a bad crown)
and like franken said it is cock on close,,,and the bolt handle is kind of weird i guess,,,but you kinda get used to it
while it is a screamer and it is very violent when it connects,,,like if you use it to squirrel hunt ONLY make head shots,,,,you wont have to worry about that part anymore!!!!
i got it to use as a go between from 22 and 223,,,does that just fine,,,only 17 i ever had,,,pain to clean,,,but it is fun to use
real draw back is that Winchester is the only ammo maker,,,no mater what the box says it all comes from the Winchester rimfire line,,,,so that kinda hurts it,,and sucks,,but the newer ones seem to be doing ok,,,the early ones gave a real Black Eye to the Bmag
i like it because it is a rimfire and i can shuck out the brass and not think about it,,,but i really do like the gun and the performance
i think if i was going to do it again i would maybe try a barrel from MGM for my TC
just my .02 from a owner,,,user
ocharry