Quick Answer
Sabot slugs can generally be fired through a modified choke, but it's crucial to ensure the choke's internal dimensions match the slug's diameter to minimize deformation and maintain accuracy.
Understanding Slug Barrels and Modified Chokes
A slug barrel with a rifled bore is designed to stabilize and impart spin to the sabot slug, which aids in accuracy and trajectory. When paired with a modified choke, the goal is to maintain this stability and spin imparted by the rifling. A well-matched choke can help reduce lead and barrel jump, resulting in tighter groups.
Choke Modification Techniques
The process of modifying a choke to fire sabots involves careful measurement and machining. Typically, the choke is shortened or reshaped to match the slug’s diameter, usually between 0.75 and 1.25 inches. This modification can be achieved through various techniques, including reaming or cutting using precision tools. The key is to maintain the choke’s internal surface integrity while ensuring it doesn’t obstruct the slug’s passage. A tolerance of 0.002 to 0.005 inches is recommended to prevent slug deformation.
Practical Considerations and Safety Precautions
When firing sabots through a modified choke, it’s essential to consider the potential for increased pressure and stress on the barrel. This is particularly crucial in older or worn barrels, which may be more susceptible to damage. Before firing, inspect the barrel and choke for any signs of excessive wear or deformation. Additionally, always follow proper safety protocols when handling firearms, including wearing ear and eye protection and ensuring a clear shooting lane.
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