Okay, lets see where to start for clarity!
In conjunction with the https://forum.castbulletassoc.org/thread/handcasting-preferences/
It is time to move forward with the tin mix situation.
I am currently casting bullets with keel lead pulled from a Catalina Capri 22. The data that I can find claims this lead is 96% lead and 4% antimony...ZERO tin. I concur! Dropping up to 222gr bullets pending heat used...from a mold that is designed to drop .428" bullets at 214gr. Typical good fill casts are at least 221gr accurate at 300 yards.
Casting as is, which was my goal at the time, I was able to get fairly consistent groups at 300 yards that equate to 4 MOA. As expected, a few fliers or outliers as well due to possible cavity voids and imperfections.
The new goal is not necessarily to tighten the group, but to eliminate outliers/fliers due to the inconsistency with poor cavity fill. To correct the problem, and lower the bullet weight, apparently I need to add some tin...about 7 to 8 ounces of 95/5.
That should be 20 oz of 40/60 or 13 oz of 63/36...or 7 to 8 oz of 95/5 pure.
I'll have to cast these with a 20lb bottom pour since my ladle casting is a bit sketchy right now.
same bullet, two sides. I think this batch was closer to 218/219gr.


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