I am not new to reloading and the dangers thereof. I have quite a bit of experience with #7 use in pistol-caliber carbine actions and know the limitations. One has to know how to read fired brass and understand the limitations of what the gun is capable of. The carbine action is proofed at a 140% overpressure load. #7 is a rather slow burning powder, so much so that it is recognized as the slowest powder that can be used in a 9mm action. One should always start low and work up. The only reason I tried this was from experience with 9mm. The 9mm and 30-carbine perform at comparative pressures and I’ve used a lot of #7 in 9mm carbine loads.
The point is understood and I think it is foolish to dump a charge in a case without having some experience and understanding about what it might do. Throwing in a handful of something like bullseye or red dot would be seriously stupid.
I am a true believer that one should never trust and shoot anybody else's reloads and that applies here. I don’t ever recommend a reload to anybody and don’t now.