348 WCF Thread from 2013 Did my best to post the link. My first try.
It has a lot of info. Looks like IMR 4350, RL-15,RL-19, H4895, and even a few others are candidates. JorgeI and a few others got great iron sight results with both H4350 and IMR4350. Better than I could like shoot with irons.
Watch those max loads and check your own book.
