Sorry if I write in the wrong section, but I have some problems concerning both the merger and the gas checks.
For the first time, I have made mergers for my k-31.
I used the mold STAMPO DC CTL312-160-2R SKU: 90361 with G.C., alloy 90-5-5 at a temperature of about 350 ° C. (660 F° ???)
These are my questions:
1) - I noticed that some balls have minimal irregularities as shown in the photos: can they be used or should they be refounded?
2) - some g.c. are not held back (about 20% of boolits): what can be the cause? I used Aluminum coil, thickness 0.14.
In all the other boolits, however, just scratch a little with my nail and the gas check is gone! Maybe they sold me too thin aluminum? I'm sorry because I bought it in England and I spent a lot!
3) - some g.c. after being put on the boolit and crimped / calibrated (.308) it has a small part detected on the edge of the base, but so small that I can't photograph it. Go away by rubbing the base 2 or 3 times on abrasive paper. After they are perfect !!! What can be the reason?