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Rizzini Extended Black Oxide Ported Shotgun Choke

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Shotgun choke constrictions from Cylinder to Extra Full, in .005 inches (.127mm) increments let you precisely match your load to the shooting conditions, in a black oxidized finish. Long shotgun choke tube extends beyond the length of the muzzle, features highly polished interior for less pellet deformation; reduced fliers and tighter patterns. Knurled grasping band speeds installation and removal. Porting reduces felt recoil by 5%. Shotgun choke constriction is marked on band so there is no need to remove choke to verify size. Helical rifled Diffusion spreader tubes provide a pattern that is more open than cylinder. CONSTRICTION CHART

NAME	12 Ga.	20 Ga.	28 Ga.	.410 Ga.
Cylinder	.000	.000	.000	.000
Light Skeet	Not Available	.003	.003	Not Available
Skeet	.005	.005	.005	.005
Improved Skeet	Not Available	.007	.007	Not Available
Improved Cylinder	.010	.009	.009	.008
Light Modified	.015	.012	.012	.010
Modified	.020	.015	.015	.012
Improved Modified	.025	.018	.018	.014
Light Full	.030	.021	.021	.016
Full	.035	.024	.024	.018
Extra Full	.040	.027	.027	.020