Dave McC's post on bead sights made me wonder...
What is the purpose of the ventilated rib on some shotgun barrels? Is it to aid sighting, and if so, what does the proper sight picture look like. Also, how does a vent rib-bead-sight setup compare in terms of acquisition time to a ghost ring setup...faster, slower?
Finally, is there any utility in having a vent rib on an HD gun?
TIA for your insights.
What is the purpose of the ventilated rib on some shotgun barrels? Is it to aid sighting, and if so, what does the proper sight picture look like. Also, how does a vent rib-bead-sight setup compare in terms of acquisition time to a ghost ring setup...faster, slower?
Finally, is there any utility in having a vent rib on an HD gun?
TIA for your insights.