ColColt
07-01-2011, 12:56 PM
This is similar to the thread on "Load testing went well" but somewhat different. I too was at the range this morning for testing purposes of two new molds(one a fix from Erik, the other from Mountain Molds)) and was most surprised and delighted at the results of both.
I had cast and loaded about 50 for the "new and improved 429421" mold that Erik opened up for me since my throats on the M29 were .432". I also had cast some and loaded those(50) from a new mold recently received from Mountain Molds and wanted to not only pit the two together but to see what if any leading would occur with my loads of 11 gr of HS-6 and 9 gr of Universal.
I shot 25 first using the improved 429421 boolits and then 25 from the Mountain Mold boolits with the HS-6 load. Marvelous groups (for me) from both measuring about 1 1/2 inch c-c at ten yards. The same test was done for the Universal loads that also ran about the same.
My one big delight, other than the groups, was the fact there was zero leading near the muzzle nor at the forcing cone. Although I used two different alloys for the testing, keeping the same together, there was no leading at all with either the BHN 12(ww's + tin) or BHN 15 boolits(50/50 lead-Linotype). Twenty five were shot with the BHN 12 and likewise for the BHN15 boolits. This more or less proves that if you stay within reason using a particular hardness, although maybe not optimum, and have the boolits fit your throats more importantly you will get very little, if indeed, any leading at all despite the difference in hardness. I'm sure if I had used a much softer or harder alloy that may have changed to one degree but staying about where I should have for these loads they not only shot well but there was no need to break out the Chore Boy...most happy today about the results.
I had cast and loaded about 50 for the "new and improved 429421" mold that Erik opened up for me since my throats on the M29 were .432". I also had cast some and loaded those(50) from a new mold recently received from Mountain Molds and wanted to not only pit the two together but to see what if any leading would occur with my loads of 11 gr of HS-6 and 9 gr of Universal.
I shot 25 first using the improved 429421 boolits and then 25 from the Mountain Mold boolits with the HS-6 load. Marvelous groups (for me) from both measuring about 1 1/2 inch c-c at ten yards. The same test was done for the Universal loads that also ran about the same.
My one big delight, other than the groups, was the fact there was zero leading near the muzzle nor at the forcing cone. Although I used two different alloys for the testing, keeping the same together, there was no leading at all with either the BHN 12(ww's + tin) or BHN 15 boolits(50/50 lead-Linotype). Twenty five were shot with the BHN 12 and likewise for the BHN15 boolits. This more or less proves that if you stay within reason using a particular hardness, although maybe not optimum, and have the boolits fit your throats more importantly you will get very little, if indeed, any leading at all despite the difference in hardness. I'm sure if I had used a much softer or harder alloy that may have changed to one degree but staying about where I should have for these loads they not only shot well but there was no need to break out the Chore Boy...most happy today about the results.