By measuring them- gunsmiths use a choke guage for a quick check-
And by shooting it- if a gun puts the correct percentage of pellets in a 30 inch circle at 40 yards, the choke measurements do not matter.
The percentages-
0-250 USD depending on condition.
NOWADAYS $100 , NO SCREW IN CHOKES= NO VALUE
1936
the 410 mossberg model 183d-a is a bolt action 410 gauge shotgun with a tree round mag well and has two interchangeable chokes full choke and modified
By the serial number
2010 volkwagon SL
If not OEM, yes
Yes. Standard chokes should be OK. Extra full chokes, on modern turkey guns, no.
What model? Value is too difficult to be accurate without seeing the gun. Condition which includes the amount of original finish and original configuration will determine value. Auto 5's with poly-chokes, compensators and recoil pads (other than Mag 12's) will reduce value.
The savage model 755a was the follow up model to the Savage model 720 auto loading shotgun which was made with John M Brownings patent.The model 755A was available in 12,or 16 gauge with a barrel length of 26in,28in,or 30in.Various chokes,rounded off receiver,and checkered pistol grip stock.These were produced from 1949-1958.
Most were full choke, but the only accurate to determine the choke is to measure the inside diameter of the muzzle with a caliper. www.countrygunsmith.net
The owner's manual, configuration and comparison with known examples.