I am a Bullseye pistol shooter, so I shoot high quantities of 45acp. I have always used C-H Mark V and VI presses. Production of these is discontinued but parts are readily available. If you happen to find one for sale, you won't go wrong and it will be cheaper than new alternatives. They aren't easy to change from caliber to caliber so I never do it. One is dedicated to 45 acp and the other for 38 sp. Most of the current Bullseye shooter use the Dillion products in one flavor or another and seem to happy with them.
Phil