Couldn't find a good price on a used p1 so I bought a new one in 20 cal. Will use for outdoor target & plinking for practice. Heavy or lighter pellets? Will use indoors when the weather turns here in Wisconsin. Anyone had especially good luck with any particular pellet in this gun? Sorry about all the questions, however, I normally shoot rimfire for practice and can't find any decent ammmo in the area.

I get by with a 20 year old Webly Tempest and a 40 year old Benjamin pumper pistol so I can't help much but you may do well with a sampler! link here

My limited experience tells me lighter is better with a pistol that doesn't have rifle power.
The P1 is a Beauty that has more power than mine and will last to be passed down when you tire of it, nice choice.