How has any manufacturer of steel jacketed or copper jacketed lead core bullets tested and proved the safety of their bullets in doubles?

I have been smithing for three decades and I have seen my share of delaminated doubles that never saw a single mono down the barrel.

GSC has been making drive band solids for ten years now. We are still waiting for the first report of damage caused by one of our drive band bullets.

However, you are right. We feel perfectly confident that our guarantee will never be invoked but saying that there is no good faith behind our guarantee is an insult to GSC and one I do not take lightly.