texaswoodworker
08-09-2014, 05:42 AM
I have an old Type 99 Arisaka with a pretty oversized bore. I was getting pretty bad results with pulled .311 bullets, and now I know why. My bore is .316...
So this gun is a perfect candidate for cast. I need a mold that drops .317-.318 bullets, so I've decided that I eventually want to have a custom one made by mountain molds. The only problem is, I don't know exactly what makes for a good cast bullet when it comes to designing one. I was wondering if anyone had any suggestions for how I could figure out exactly what would shoot best.
I don't know what the optimum front band diameter or length is, or how much bore ride length I need, or really anything like that. I just know the diameter I want, and what weight I want (was thinking 170gr). I'm going to do a chamber cast as soon as I can get some Cerrosafe, so I'll at least know my throat diameter and my max OAL.
So this gun is a perfect candidate for cast. I need a mold that drops .317-.318 bullets, so I've decided that I eventually want to have a custom one made by mountain molds. The only problem is, I don't know exactly what makes for a good cast bullet when it comes to designing one. I was wondering if anyone had any suggestions for how I could figure out exactly what would shoot best.
I don't know what the optimum front band diameter or length is, or how much bore ride length I need, or really anything like that. I just know the diameter I want, and what weight I want (was thinking 170gr). I'm going to do a chamber cast as soon as I can get some Cerrosafe, so I'll at least know my throat diameter and my max OAL.