I had a pump and load for a pump and we had some Hot ones for a pump,that would break the action loose.
these would be very hard on a auto. you need to shoot close to factory to cycle the action correctly.
we never had any luck with the 250 bullets,they would always go straight through and not expand.
the bullet of choice we found to use and works very well is the 225 sierra boat tail these were 54.5
imr 4064.they have great expansion and make a big exit hole on deer.