A few weeks ago, I posted to the forum looking for the reasons that many of the shooters used lino; asking for the reasons for the seeming superiority of lino for precision targeting, in preference to heat treated bullets. Gary and another gentleman submitted photos that seemed to show a layer of dissimilar metal (presumably hardened) on the surfaces of bullets that had been heat treated, and then sectioned for illustration. This would presume to show that only the surface was affected and hardened. After considerable cogitation, I was wondering how this could be, given that the bullets were presumably cast from a homogenous mixture in the pot. It would appear that the harder metal had somehow migrated to the outer surface of the bullet. Certainly not impossible, but, in my case, given that I oven-heat the bullets for an hour, minimum, one has to wonder why the layer would be surface only. The important implication being that, after heat-treating, only the bullet surface would be affected. But wait, there's more. Several other folks sent in narratives stating that they had, in fact, sectioned treated bullets, and found (I believe the same degree of) hardness had been found throughout the bullet. The reason I have raised this question is that, while experimenting to try to find competitive loads for CBA competition, is to find if I should be experimenting with lino bullets only. So far, I can tell no difference between the HT wh. wts. and lino; however, I'm not in the position of going for records with the groups I'm generating, either. One MOA 10 shot group is reason for celebrating and cartwheels. Repeatability is the problem. A 1-1/8” group followed by the same-load group of 2” is not cause for much hope. I'm still looking. (Isn't that the fun of the game?)Anyway, just tossing this out for consideration. A note from John Alexander has given me still another direction to go in. I'm loving it!
Bill Glaze
In theory, there's no difference between theory and practice. In practice, there is. My fate is not entirely in Gods hands, if I have a weapon in mine.