260 Cheetah
Price range: $8.00 through $49.00Uses 22 Cheetah, Mk I gauges
There are three basic types of RIFLE cartridges, Bottle-neck rimless (and semi-rimless), Rimmed, and Belted Magnum. All are included under the general heading of rifle.
Standard chamber reamers include all the features of the chamber design. If it’s a rimmed or belted case design that feature is included on the reamer. All reamers will have a throat included unless otherwise stated.
We stock only finish type reamers made of High Speed Steel dimensions will fall within standard SAAMI specifications unless otherwise noted.
Showing 161–240 of 686 results





Premium Reamer Rental includes 1 Finish chamber reamer – 1 Headspace Gauge Set – 1 Neck & Throating Reamer Uses 280 Ackley Improved Traditional Headspace Gauges

Grendel variation popular in semi-autos.

This Premium Reamer Rental from 4D Reamer Rentals includes headspace gauges in addition to the reamer. This all in one package is the best way to get started in these cartridges from Sherman Wildcat Cartridges. We are the exclusively partnered with Sherman for your convenience. We buy these tools directly from Sherman Wildcat Cartridges. You…



.270 / 6.8mm Caliber Pilot Set Rental This 270 / 6.8mm caliber pilot set of six is designed for use with chamber reamers to ensure proper alignment and consistent, accurate chamber cutting on .270 caliber rifle barrels. Precision-ground pilots, ranging from 0.2675″ to 0.2700″, help maintain concentricity between the reamer and bore, reducing the risk…

Not the original Newton, this is a later wildcat variation on a standard belted magnum case.


Premium Reamer Rental includes 1 Finish chamber reamer – 1 Headspace Gauge Set – 1 Neck & Throating Reamer Uses 280 Ackley Improved Traditional Headspace Gauges

This Premium Reamer Rental from 4D Reamer Rentals includes headspace gauges in addition to the reamer. This all in one package is the best way to get started in these cartridges from Sherman Wildcat Cartridges. We are the exclusively partnered with Sherman for your convenience. We buy these tools directly from Sherman Wildcat Cartridges. You…

This Premium Reamer Rental from 4D Reamer Rentals includes headspace gauges in addition to the reamer. This all in one package is the best way to get started in these cartridges from Sherman Wildcat Cartridges. We are the exclusively partnered with Sherman for your convenience. We buy these tools directly from Sherman Wildcat Cartridges. You…














This Premium Reamer Rental from 4D Reamer Rentals includes headspace gauges in addition to the reamer. This all in one package is the best way to get started in these cartridges from Sherman Wildcat Cartridges. We are the exclusively partnered with Sherman for your convenience. We buy these tools directly from Sherman Wildcat Cartridges. You…




This Premium Reamer Rental from 4D Reamer Rentals includes headspace gauges in addition to the reamer. This all in one package is the best way to get started in these cartridges from Sherman Wildcat Cartridges. We are the exclusively partnered with Sherman for your convenience. We buy these tools directly from Sherman Wildcat Cartridges. You…

Premium Reamer Rental includes 1 Finish chamber reamer – 1 Headspace Gauge Set – 1 Neck & Throating Reamer Uses 280 Ackley Improved Traditional Headspace Gauges


Neck: .322 | Freebore: .152 | Lead Angle: 1.5º | Pilot: Bushing



Both the 30 ARX and the 30 Major are based off of the 6.5 Grendel and necked up to 30 Cal.



30 Caliber 0.311″ Proj. Pilot Set Rental This 30 caliber 0.311″ Proj. pilot set of six is designed for use with chamber reamers to ensure proper alignment and consistent, accurate chamber cutting on .30 caliber rifle barrels for a 0.311″ diameter projectile. Precision-ground pilots, ranging from 0.3005″ to 0.3030″, help maintain concentricity between the reamer…





* must use 30 Nosler Gauges, not alternate



This Premium Reamer Rental from 4D Reamer Rentals includes headspace gauges in addition to the reamer. This all in one package is the best way to get started in these cartridges from Sherman Wildcat Cartridges. We are the exclusively partnered with Sherman for your convenience. We buy these tools directly from Sherman Wildcat Cartridges. You…


*This is the same gauge as the 6.5×47 Lapua.



European style throat and dimensions








Multiple versions of this cartridge are offered by reloading die makers.






The 6.5 WBY RPM is based on a lengthened version of the existing 284 Winchester. This is a wildcat 30 caliber based on the RPM case.






Starline produced 300 HAM’R cases are available, but cases can be made from common and available 5.56/.223 cases. Any AR15 platform rifle can be converted to 300 HAM’R with a simple barrel change and the use of 300 Blackout magazines. 300 HAM’R has 18% more retained velocity, 40% more energy and a 56% flatter trajectory…

Premium Reamer Rental includes 1 Finish chamber reamer – 1 Headspace Gauge Set – 1 Neck & Throating Reamer Uses 280 Ackley Improved Traditional Headspace Gauges




AW2 Spec Reamer to help with extraction issues.
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