jdgabbard
07-29-2023, 12:42 PM
It’s not uncommon to see variations in mold designs. Just about every mold has seen some changes over the years. But this one really got me wondering.
What you see in the first two pictures are two 311359 boolits. The one on the left is what I believe to be a later Lyman mold which a member sent me some cast copies of 10yrs +\- ago. The one on the right is a Ideal single cavity mold without vent lines.
You’ll notice that the lubed variety is significantly longer. To the tune of adding approximately 7gr of weight. When looking at them side by side it appears the lubed version is identical but having a longer shank for the gascheck.
Is this pretty common? I’ve never seen a change this dramatic on what would otherwise be a pretty standard, and common, mold. Anyone have any explanation the the change here?
https://uploads.tapatalk-cdn.com/20230729/7b4209640de7f5b5471415f779bc43b1.jpg
https://uploads.tapatalk-cdn.com/20230729/ccec4318bc8738de2e4ac005d7b0aba5.jpg
https://uploads.tapatalk-cdn.com/20230729/926fa2fc3deb5bfdf7181f93fff72bc0.jpg
https://uploads.tapatalk-cdn.com/20230729/9a4867eb008af2f79f845c57376925f6.jpg
What you see in the first two pictures are two 311359 boolits. The one on the left is what I believe to be a later Lyman mold which a member sent me some cast copies of 10yrs +\- ago. The one on the right is a Ideal single cavity mold without vent lines.
You’ll notice that the lubed variety is significantly longer. To the tune of adding approximately 7gr of weight. When looking at them side by side it appears the lubed version is identical but having a longer shank for the gascheck.
Is this pretty common? I’ve never seen a change this dramatic on what would otherwise be a pretty standard, and common, mold. Anyone have any explanation the the change here?
https://uploads.tapatalk-cdn.com/20230729/7b4209640de7f5b5471415f779bc43b1.jpg
https://uploads.tapatalk-cdn.com/20230729/ccec4318bc8738de2e4ac005d7b0aba5.jpg
https://uploads.tapatalk-cdn.com/20230729/926fa2fc3deb5bfdf7181f93fff72bc0.jpg
https://uploads.tapatalk-cdn.com/20230729/9a4867eb008af2f79f845c57376925f6.jpg