I have been trying to read through as many posts as I can in the archives to get more familiar with the double rifles as I just purchased my .470 NE. I want to use the Woodleigh Solids in my rifle, but was planning on trying some Swift A Frame loads in the rifle because I am so fond of their bullets in my bolt actions I use to hunt with. I saw a post that talked about issues with using partitioned bullets in the rifles. Does anybody have any advice on whether the Swift A Frames can harm the barrels of my new rifle. If so, I will stick with Woodleigh softs in my new Chapuis Rifle. The post was kind of hard to understand as it just stated that he was not using Nosler Partitions due to recommendations from prior posts.