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Bearing Surface Comparator

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Call 806-323-9488
Fax 806-323-9483

Superior Shooting Systems Inc.
800 N. Second St.
Canadian TX 79014

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Bearing Surface Comparator

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"Our bearing surface comparator allows the handloader to segregate bullets by yet another means. Unlike some criteria, though, this is truly effective. The results are proven on paper in long range competition."

 

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Another step toward perfecting ammunition

Grouping bullets together that are more nearly the same helps attain the goal of eliminating as many variables as possible. The Superior Shooting Systems Inc. Bearing Surface Comparator [BSC] provides an effective way to measure the surface of the bullet which is in contact with the bore of your barrel. Small differences (even a few thousands) in bullet bearing surfaces generate enough more (or less) friction that the velocity and pressures of the load are affected. Uniforming bullets into a consistent measurement range will allow your standard deviation and extreme spreads to become closer, and, ultimately, shoot smaller groups on target.

The BSC is designed as a caliber-specific instrument with different caliber attachments (sleeves/bushings) available that fit from .222 through .338 diameter (caliber) bullets. A caliber set consists of two different tapered bore diameter sleeves. One sleeve attaches to the stem of the supplied dial indicator and is held in place by a 5/32 allen-head screw. The other (stepped) sleeve is set upon the granite base (with the sleeve's larger diameter step on the bottom). The bullet to be measured can be placed into this base sleeve either nose up or nose down.

DOWNLOAD product brochure and instructions

Phone 806-323-9488, FAX 806-323-9483, or order ON LINE


ORDER

Available in the following calibers

.22 (.224), 6mm (.243), .25, 6.5mm (.264), .270, 7mm (284), .30 (7.62mm), .338


 

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