If I read correctly, these 350g and 405g bullets are high on the hardness scale... thought I read 18bhn (or more?). How much velocity is likely needed to keep these boolits from leading up the barrel?
I was shooting a light 4198 load with a 350g and later found it had been leading up a bit at the breech in the Ruger #3. I think it was 29 grains and obviously not high velocity then. Accuracy was good.
Also using 3031.
Thanks.