Geissele 6mm #4 Hunter Cut Rifle Barrel Blank 30-1313-2600-243-075-01-C

A hunting rifle built around the wrong contour ends up either too heavy to carry all day or too light to hold steady on a longer shot. The Geissele 6mm #4 Hunter Cut Rifle Barrel Blank 30-1313-2600-243-075-01-C sidesteps that guesswork by handing a gunsmith a precision pre-contoured rifle barrel blank built specifically for 6mm (.243) hunting builds, so the balance can be dialed in around the actual rifle rather than a factory default.

At 26.00 inches overall with a #4 Hunter Cut profile, this USA-made barrel blank gives a smith the raw material needed to finish the barrel around specific performance goals rather than someone else's assumptions. It's supplied unrifled and unthreaded, which means twist rate, chamber, and muzzle threading all get custom-cut at the finishing stage instead of arriving fixed. For general 6mm work, a 1:7.5 twist is the typical choice — wide enough to stabilize everything from lighter hunting bullets to heavier long-range match loads, so the build doesn't get locked into one narrow bullet weight before it's even finished.

Estimated weight before machining sits in the 3.8 to 5.0 lb range, though the number that actually matters — final weight and balance — depends entirely on how the barrel gets contoured downstream. That's really the appeal of starting from a Geissele barrel blank rather than a finished product: the #4 Hunter profile gives a head start toward a hunting-weight barrel, but the smith still controls exactly where it ends up.

Whether the goal is a dedicated hunting rifle, a tactical build, or a precision-oriented 6mm project chasing specific accuracy standards, this 6mm barrel blank offers the flexibility and steel quality to get there without compromise.

Key Features

• #4 Hunter Cut profile at 26.00 inches, built for 6mm (.243) hunting builds
• Supplied unrifled and unthreaded — finished to exact specs by a gunsmith
• 1:7.5 twist typically recommended for versatile 6mm bullet stabilization
• Estimated pre-machining weight of 3.8–5.0 lb, final weight varies by finishing
• Made in the USA from high-quality barrel steel
• Suited for precision hunting, tactical, or competition rifle projects