Another issue you are going to encounter is the 43's bore is a .223 versus .224. If you are running .224 bullets you have to back off the charges or you will blow pockets. Years ago I had a Pre-64 Model 70 Hornet that had been converted to .222 Remington (a fairly common practice). When I got it, I could not get the bolt to come out. I finally took it out of the stock and found the whole bottom of the action area of the stock was full of blown primer dimples.


It has been my experience with Hornets you have to run to the edge of max to get them to shoot well, but you have to do it with Hornet bullets.