My question is this: are there powders that burn more thoroughly in a short barrel than a long one?
can we eliminate belchfire situations where powder is still being burned several feet out from the muzzle when a round is touched off, simply by going to a faster burning powder.
The assumption you offered in these two separate questions are the main reason you are not getting the simple answer you seek.
Your first question assumes that Muzzle flash is caused by unburned powder. As MickeyD has so eloquently explained to you, this is simply not true.
Your second question incorrectly assumes the same, that unburned powder is the cause of muzzle flash. You also incorrectly assume that shorter barrels produce more muzzle flas because the powder has less time to burn.
Those here have tried answer your question by first pointing out that your assumption as to the cause of MF are incorrect.
To supply you with a simple explanation as to how to reduce muzzle flash you must first be educated on what causes it, it Ain’t Unburned Powder and it Ain’t the short barrel.
Now if you wish to find out which powders produce less muzzle flash, first forget the barrel length and second lose the myth that it is caused by unburned powder.
