How to calculate choke sizes from barrel markings?
Have Fallen on an old Spanish sxs made in 1961 but i can’t work back the choke sizes from the markings so need someone who is adept with an abacus:) I know there’s a formula but can’t find it on tinterwebby LH barrel is 0.8mm = 0.030″ = 3/4 = Imp Mod RH barrel is 0.4mm = 0.015″ = 3/8 = Light Mod I’m very impressed but what’s the formula ?
Where are the choke markings on a Browning?
The fixed choke markings are denoted by * marks on the bottom of the barrel under the forearm assembly. 3 on the left barrel and 4 on the right. *** Modified choke **** Improved Cylinder
What’s the best way to tell what choke my shotgun is?
Best bet is to check your manual for markings and locations. If you don’t have the manual check the manufactures website or e-mail or write them.Or you can go to a gunsmith and have him check the bore with a bore gauge. Usually they have notches in the choke so you can check without taking it out.
How big is the choke on a 12 bore shotgun?
For example, on a 12 bore shotgun, the constriction to achieve full choke would be 0.040″ whereas on a 20 bore shotgun, it would be 0.027″. If you’re looking to learn more about the specific sizes in more detail, see our article improved cylinder vs modified choke.
What are the choke sizes on Spanish shotguns?
On Spanish shotguns usually there are two markings on each barrel – the barrel diameter and choked diameter – difference between those is choke in mm. I’m very impressed but what’s the formula ?
What kind of shotgun does Stevens Arms make?
This company manufactured a number of single-barrel break-open single-shot shotguns. They were chambered for various gauges, with various length barrels and chokes. They are quite similar in appearance and were designed as inexpensive utility-grade weapons.
How do you find the age of a Stevens shotgun?
According to the 5th Edition of Standard Catalog of Firearms (Krause Publications), p. 677 “Collectors will find a date code stamped on every double-barrel shotgun in the Stevens brands produced between March 1949 and December 1968. Usually, it is behind the hinge pin or ahead of the triggerguard on the bottom of the frame.