yabia omer chelek 7 chosen mishpat siman 6—his maskanas based on tshuvos rav paalim, and what he’s medayek from there isnt muchrach at all, decide for yourself….
he gets involved with lotteries, gambling, differnce if its from jews or goyim, and the quote from the chida on a meikel sfardii like the rama is “tzarich kapara”.
also, see pischei chosen from rav blau shlita of sanhedria, chelek kinyanim, perek 21 page 565 lengthy discussion, about lottery, gambling, raffles, etc..
hope it was helpful.