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Rizzini Spectrum Ported

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The spectrum ported series reduces choke weight, and reduces felt recoil by five percent. Nine choke constrictions let you precisely match load and shooting conditions. Minimum gap geometry and high resolution RMS interior finishes gives less pellet deformation; consistently tighter patterns. Choke constriction is laser marked, on color-coded band so there is no need to remove choke to verify size. Long tube with hidden wrench slots extends beyond the length of the muzzle. Knurled grasping band speeds installation and removal. 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