[sundog]

TallPine, you CAN neck size for lever and slide actions. However, at some point you may have to bump the shoulder back or perform some other adjustment to the case for it to work reliably in THAT firearm. Levers and slides inherently do not deliver the camming action that a bolt can, so keeping the brass to some predetermined tolerance is what makes it function (action lock up) reliably and this is normally done with FL or partial FL sizing. With observation and practice a good handloader can, if he chooses, neck size for lever and slides. As far as your example, for cowboy shooting, I would not consider neck sizing as many of the stages require rapid fire shooting and the action MUST positively lock up without binding. For the long range single shot events, it may be worthwhile. sundog