Some of you may remember a string on the 11.5x74R wildcat cartridge for use in the H&R .410/.45LC Survivor. Anyone familiar with that rifle knows that they are not accurate with any .45 Colt ammo, especially with lead bullets. I will admit that I got substantially better results with all copper bullets.
I read about a creative solution for the accuracy problem, caused by the extra long chamber, and decided to try it myself. I am forever greatful for all the help and expert advice I got on this forum, especially from Lt. Dave, Quickdtoo, and Dinny. Without them I could not have done the project.
Important note: I purchased and installed the barrel on an SB2 frame. Don’t try it on the original Survivor SB1 low pressure frame (receiver). It could fail catastrophically
I expanded Norma brand 9.3x74R cases and loaded them with 17 grains of Trail Boss powder and seated a 250 Gr. LRNFP bullet to fire form the cases. They fire formed beautifully and the next range trips went well, but I was using a red dot and wanted to put on a scope.
I had a long, difficult time getting it to work, but it was not the rifle, cartridge, or the reloading process that caused most of my grief. It was the scope mount installed by an apprentice gunsmith that had holes drilled out of line, stripped threads, and improperly spaced holes. I ended up going to another gunsmith to get it corrected. I suspect that contributed to the .45 Colt accuracy problems.
After moving from San Diego to western Washington, I finally got it to the range today. I used the same 250 grain LRNFP bullets over 17 grains of Trail Boss. They chronograph at 1400 FPS. I shot two sighting groups at 25 yards, moving the point of impact after the first group. Both groups were very good. I then put up a new target at 50 yards and fired two more 3 shot groups to get it sighted in at 3” above center. One group was about 3/4” center to center and the other was 7/8”. I AM EXTREMELY HAPPY!!!
Last edited by DawnGazer; 09-18-2019 at 10:39 PM.
Reason: Grammar, sentence structure, and spelling