Riddle me this:
In my 870 HD, the extension tube is crimped a few inches from the end (NOT refering to the dimples), preventing the follower from going back any further and allowing 6 cartridges in the tube. Aftermarket extensions for the 870 are also only "6+1".
Mossberg, Winchester, and Benelli shotguns are all capable of 7+1 capacities in their 18.5" models. These guns have exactly the same length tubes, but fit one more round. Barring the obvious crimp in the factory Remington extension, what prevents 870's from achieving the same 7+1 capacity with an aftermarket extension(ending flush with the 18.5" bbl) ? Are the mag springs just shorter? That's the only explanation I can think of, because it just doesen't add up.
In my 870 HD, the extension tube is crimped a few inches from the end (NOT refering to the dimples), preventing the follower from going back any further and allowing 6 cartridges in the tube. Aftermarket extensions for the 870 are also only "6+1".
Mossberg, Winchester, and Benelli shotguns are all capable of 7+1 capacities in their 18.5" models. These guns have exactly the same length tubes, but fit one more round. Barring the obvious crimp in the factory Remington extension, what prevents 870's from achieving the same 7+1 capacity with an aftermarket extension(ending flush with the 18.5" bbl) ? Are the mag springs just shorter? That's the only explanation I can think of, because it just doesen't add up.