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20% Spartan Block
In stock — ships from Greenville, SC
Used by NSA, Federal, Winchester, Smith & Wesson, and Stanford
18x8x8 Spartan block for large caliber testing
Choose Gel Formulation
10% — FBI BB Calibration Specs
Standard density. Best for handguns, pistols, and standard velocity rounds.
20% — NATO BB Calibration Specs
High density. Best for rifles, high-velocity rounds, and military applications.
$107.99 $119.99
Qty
Crystal Clear
No Refrigeration
Reusable 10–15x
FBI Calibrated
Product Details
20% Spartan Block
Larger shooting face of 64 square inches with larger expansion zones. Perfect for terminal ballistics testing all calibers where projectile penetrations are less than 18 inches. Meets NATO ballistics testing protocol 100%.
Crystal Clear Gel
100% Synthetic
No Refrigeration
Reusable Up to 10x
Made in USA
UPC: 852844007161
Proven In The Field
The standard professionals test against
For 15 years, Clear Ballistics gel has been the chosen test medium for the agencies, manufacturers, and labs that set the standards everyone else follows.
NSA
Federal
Winchester
Smith & Wesson
Barnes
Stanford
Discovery Channel
Nat Geo
Law Enforcement · Military · Ammunition Manufacturers · Universities · Forensic Labs · Content Creators
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Product FAQ
Still have a question?
Clear answers on calibration, reuse, storage, and applications. If you don't find what you need, contact us.
Yes. Clear Ballistics synthetic gel can be remelted and reformed up to 10x when the standard remelting procedure is followed using a compatible mold and cooker.
No. Unlike organic ordnance gelatin, Clear Ballistics gel requires no refrigeration and has an indefinite shelf life.
Traditional organic ordnance gelatin is opaque, requires continuous refrigeration at 40°F, and is single-use. Clear Ballistics gel is crystal clear, requires no refrigeration, and is reusable up to 10x.
Yes. Every order includes a calibration card confirming your batch meets FBI BB Calibration Specs.
Yes. Clear Ballistics manufactures custom sizes for volume and specialty applications. Request a custom quote.