John Haviland has an article on powder coating in February's Handloader. His results imply that a single coat on a pistol round will give slightly better groups than traditionally lubed rounds. But it also implies that TWO coats will open up the groups.
I have always used two coats but that was only to ensure complete coverage of the lead, as I hate leading. I do not have enough data about one coat versus multiple coats to make an informed decision. But I have had no leading and have taken several pigs with no problems. I will continue to refine the techniques and watch for tips here. From Yondering to HawkI and Gnoahh and Scott F, there are a lot of great guys here willing to share real knowledge and experience.
