Bore Tech 6MM / .243 Proof Positive Rifle Patch Jag, Brass-Free

Description

If you clean with copper-removing solvents, you've probably watched a traditional brass jag turn your patch blue when there was no copper left in the bore. That false reading sends you chasing fouling that isn't there. Bore Tech built the Proof Positive Rifle Jag to put an end to it. Sized for 6mm and .243 caliber barrels, this jag is made from a proprietary alloy that's completely brass-free, so the color you see on the patch is the truth about what's in your bore.

The reason brass jags cause trouble is simple: they're more than 60% copper. Run an aggressive copper solvent over that and you get blue on the patch whether the bore is dirty or spotless. Swap in a brass-free jag and you can finally tell when your barrel is genuinely copper-free, which means fewer wasted patches, less solvent burned, and no second-guessing.

How the Proof Positive Jag Reads True

The alloy Bore Tech uses is about as soft as brass, so it won't hurt your bore, but it carries more tensile strength to resist bending and snapping when you're driving a tight patch through. A secondary treatment seals the jag against harsh chemicals and keeps it 100% barrel safe. It's a small part that punches above its weight.

Built for a Clean, Consistent Pass

Each jag is precision machined with a dual set of four contact rings that grab the patch and apply true, concentric pressure across the bore. The first ring in each set is rounded so the jag centers itself as it enters, while the squared rings behind it hold the patch in place. There's even a relief space between the ring sets that acts as a small solvent reservoir. The length is matched to the caliber so patches don't bunch or jam at the tip, and a reverse taper at the rear gives a smooth transition when paired with Bore Tech Bore Stix rods to help protect your crown. Standard #8-32 threads mean it drops onto most cleaning rods you already own.