It takes a pretty good pounder but it is done all day long here in SD. Points make a huge difference but can still be done blunt. Up until two years ago I could push most posts on a rainy day with my WL42 loader with a round bale on it, then we got dry. I've rented the local fence builders Shaver pounder mounted on a 450 IH the last two years. Haven't dug a post in years.
Casey in SD