Jag BrushTM Makes More Patch Contact to Bore than Do Standard Jags, Part IV: Effect of Bristle Flex
Los Angeles, CA — the flexibility of a Jag BrushTM bristle gives it a dynamic gap clearance, and, in turn, a Jag BrushTM and patch combo presses more patch fabric against the bore wall.
Their flexibility allows a Jag BrushTM bristles to be at a perpendicular or near perpendicular orientation, and that is when the minimum gap clearance occurs. At small clearance its bristles push patch fabric deeper in rifling, and deeper means more patch fabric contacts the bore.
The small clearance means they can push 1-layer and 2-layer pleats along the patch folded around the Jag BrushTM. The 1-layer and 2-layer pleats occur at the extremity of the folded patch, where the corners of the patch reach furthest down the jag. A standard jag cannot do it. A standard jag has gap clearances at its ribs that are designed for pleats thicker than 1 or 2 layers. As a result, a Jag BrushTM pushes more portions of the patch against the bore.
A standard jag often does not have ribs along its entire shaft. Typically it has a few ribs near the tip, and then no ribs along the remainder of the jag’s thin shaft. Along the surface where a standard jag has no ribs, there is no or little pressure against the patch. On the other hand, a Jag BrushTM can press patch fabric along the entire length of the brush since it has bristles all along its twisted wire stem.
A standard jag has recesses between ribs. At the recesses, there is no or little pressure against a patch. On the other hand, a Jag BrushTM does not have circumferential recesses where a patch is not pressed firmly into the bore wall. The continuous helix of bristles of a Jag BrushTM presses a patch at every longitudinal location.
Shane Smith +1 310-463-7811 (mobile) RigelProducts@yahoo.com