[Jimro]

With all the research I've done into front ignition reloading, I've never heard reduced muzzle flash as one of the benefits.

Frontal ignition uses a tube to connect the primer to the very front of the powder column, so that when the primer is struck it lights off the powder at the base of the bullet first, so the powder column burns backwards towards the rear (instead of from the rear to the front).

This is supposed to keep the powder in the case instead of burning in the bore, and anecdotal evidence says that this is the case (the front ignition brass comes out of the rifle hotter than normal brass).

Then again, not too many handloaders bother with frontal ignition, so maybe reduced muzzle flash is one of the benefits but nobody has done the low light studies to test it.

Jimro