I'm trying to work up some .357 Magnum handloads for long range (100 yds.) shooting at targets. I'm shooting a 4 inch Ruger GP100 revolver. I'm trying to work up the load using 158 cast LSWC bullets manufactured by Bushwhacker Bullet Co. in MO. I'm sorry but I don't know that the Brinnel hardness rating is for these bullets. They are bevel base bullets. I've used these bullets for light and medium .38 special loads for practice and qualification with acceptable results.
These bullets have given fair results so far in the .357 loads, but I feel accuracy isn't what it should be when I compare it to my .41 magnum. I've tried several powders. I've tried up to 14.3 grains of 2400, and up to 5.0 grains of Titegroup. Today I tried 5.4, 5.8, and 6.2 grains of Universal with only fair results. I've only been shooting at 25 yards. A buddy of mine suggests that the accuracy isn't good due to the bullets having a bevel base. My buddy says if I use cast .357 bullets with a flat base the accuracy will improve. In my .41 magnum all I've ever used are flat based cast bullets or JHP bullets and accuracy is great.
Any thoughts or advice on this problem? All opinions and advice will be appreciated. Thank you.
These bullets have given fair results so far in the .357 loads, but I feel accuracy isn't what it should be when I compare it to my .41 magnum. I've tried several powders. I've tried up to 14.3 grains of 2400, and up to 5.0 grains of Titegroup. Today I tried 5.4, 5.8, and 6.2 grains of Universal with only fair results. I've only been shooting at 25 yards. A buddy of mine suggests that the accuracy isn't good due to the bullets having a bevel base. My buddy says if I use cast .357 bullets with a flat base the accuracy will improve. In my .41 magnum all I've ever used are flat based cast bullets or JHP bullets and accuracy is great.
Any thoughts or advice on this problem? All opinions and advice will be appreciated. Thank you.