Quick Answer
Different choke constrictions can significantly affect the performance of TSS (Tungsten Super Shot) in sub-gauge shotguns, particularly for patterns at closer ranges, with tighter chokes yielding better concentration and density of shot.
Understanding TSS Performance in Sub-Gauge Shotguns
The performance of TSS in sub-gauge shotguns is largely dependent on the choke constriction used. TSS is a tungsten-based shot that is denser than traditional lead shot, but it also requires a tighter choke to achieve optimal performance. In sub-gauge shotguns, a tighter choke is necessary to compensate for the reduced barrel diameter and to ensure that the shot pattern remains concentrated.
Choke Constrictions for TSS in Sub-Gauge Shotguns
For TSS in sub-gauge shotguns, the recommended choke constriction is typically between 24-28 kiloponds (kp), which is tighter than what is typically used for lead shot. A 24-28 kp choke is equivalent to a M (Modified) or IM (Improved Modified) choke in standard shotguns. However, it’s essential to check the specific recommendations for your shotgun and choke combination, as some manufacturers may have different specifications.
Measuring the Effect of Choke Constriction on TSS Performance
To measure the effect of choke constriction on TSS performance, you can conduct a shot pattern test using a chronograph or a trap shooting range. Shoot a target at a distance of 20-25 yards (18-23 meters) and measure the pattern size and density using a shot catcher or a target with a grid pattern. By comparing the results with different choke constrictions, you can determine the optimal choke for your TSS sub-gauge shotgun.
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