Wm Cook
03-17-2019, 01:06 PM
My 2 cavity Lyman 225438 mold (2010) Has one cavity larger than the other. The far cavity is averaging .4 of a grain heavier than the near cavity. My solution has been to separate them as they drop, weigh, sort and keep separate for accuracy purposes. Is there any solution out there that could lap the smaller near cavity to equal the weight of the far cavity.
Why? In the winter I play in my shop with a 10 yard range and I have a hooting good time juggling powders, powder charge, primers and seating depth looking for subsonic 5 shot groups that are under .0999. With the loading bench 15 feet away and in a controlled 70 degrees environment I can spend hours playing with combinations. And once you get a consistent load worked up it’s a lot of fun looking at two, three or four one hole groups on the same target. I’ve actually shot 5 shot groups under .00XX that could be repeated in the range of .0XXX and under.
I understand that shooting screamer groups in those conditions is certainly not applicable to the real world but i’m just competing with myself and having fun. And by the way, if the best combination of depth, primer choice, powder and powde charge is shooting .2000 at 10 yards it just ain’t gonna get any smaller than 2.000 at a hundred yards.
So I sort and shoot Bullets +/- .000. Which i know is further diluted by my RCBS scale that can only measure to +/- .001.
I’m a geek but I can live with that. Thanks for listening.
Why? In the winter I play in my shop with a 10 yard range and I have a hooting good time juggling powders, powder charge, primers and seating depth looking for subsonic 5 shot groups that are under .0999. With the loading bench 15 feet away and in a controlled 70 degrees environment I can spend hours playing with combinations. And once you get a consistent load worked up it’s a lot of fun looking at two, three or four one hole groups on the same target. I’ve actually shot 5 shot groups under .00XX that could be repeated in the range of .0XXX and under.
I understand that shooting screamer groups in those conditions is certainly not applicable to the real world but i’m just competing with myself and having fun. And by the way, if the best combination of depth, primer choice, powder and powde charge is shooting .2000 at 10 yards it just ain’t gonna get any smaller than 2.000 at a hundred yards.
So I sort and shoot Bullets +/- .000. Which i know is further diluted by my RCBS scale that can only measure to +/- .001.
I’m a geek but I can live with that. Thanks for listening.