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Backbore? What does it mean???


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Hi fishmax2 - What is back boring?

Back boring is the machining process of reaming or boring. A back bored shotgun barrel simply means that the bore has been altered/machined to a larger inside diameter. Backboring does -beyond any doubt- add to more wider center mass and will help reduce the length of shot strings. If done properly and wad gas seals are still maintained, by decreasing the resistance of the bigger bore you will get an increase in velocity.


hope this helps

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