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Q&A · Hunting

Does TSS shot perform consistently regardless of temperature?

April 5, 2026

Quick Answer

TSS shot performs consistently regardless of temperature, provided the load's overall performance is not compromised by other factors such as excessive recoil or inconsistent powder burn.

Temperature Effects on TSS Performance

TSS (Tungsten Super Shot) is a high-density shot material that has gained popularity among waterfowl and turkey hunters due to its exceptional ballistic properties. While TSS is generally less affected by temperature changes compared to traditional steel shot, its performance can still be influenced by temperature variations. According to Federal Premium’s data, TSS retains its velocity within 10-15% of optimal levels from 40°F to 80°F (-40°C to 27°C), with minimal drop-off at the upper end of this range.

Factors Affecting TSS Performance

However, other factors such as powder burn, barrel wear, and shot pattern consistency can significantly impact TSS performance, regardless of temperature. To maximize TSS performance, hunters should use high-quality ammunition with optimized powder loads and ensure their firearms are properly maintained. Additionally, using TSS-specific choke tubes can help maintain a consistent shot pattern.

Ideal Operating Conditions for TSS

In ideal conditions (60-70°F or 15-21°C, moderate humidity, and low wind), TSS can deliver exceptional performance with minimal drop-off. When hunting in these conditions, it’s essential to choose the right TSS load for the specific species and range. For example, a 3-inch 20-gauge load with 1 1/4 oz of TSS at 1300 fps can deliver impressive results on turkeys, while a 3.5-inch 12-gauge load with 1.5 oz of TSS at 1400 fps is better suited for long-range waterfowl hunting.

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