I'm right there with you MikeD. I've been handloading since 1976 and no blow ups. Let me say though I have caught on two occasions loading in high static electric conditions (winter time) that I had Nitro 100 bridge in the drop tube. Yes sir, and the only way I caught it was final crimp was slightly bulged. Checked the shell and confirmed double charge. Checked the shell before it and it was empty!! Point is anything can happen so it doesn't matter how long you've been loading or how safe you are. I think reloading is statistically safe considering the millions of reloads fired every year. JMHO. Jerry
I agree with you mac. Now say a wrong type of powder all together was used, something with way to fast of burn rate say, now I see it as a possibility. But normal published loads blowing a gun apart seems highly unlikely to me.
As long as you don't shoot a K80 you are safe. You are probably quite safe with a K80 too, but there are way too many reports not to think about it.
Detonation: Happens in large capacity metallic cases with small powder charges. Flame front from the primer flashes over the whole charge and creates the aforementioned pressure spike. (this cabbage was just recently chewed here, and I'm not going to start over. Suffice to say I believe the loading data publishers).
Detonation is highly unlikely in shotshells since the wad closes off the powder and there is no airspace.
HM think about this one. That new batch of Win AA hulls, the ones they discontinued. They had a ridge inside that the wads were hanging up on. This hang up of the wad coupled with a light powder charge would create that shell with an airspace that you were talking about. HMB
HM, how many times have you witnessed the detonation that you describe? I have shot thousands of large caliber handgun shells with a minimum of powder and never had such thing happen, and no other cowboy shooters either that I know of. Detonation is an unprovable myth, kinda like flying saucers.