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Subsonic & Specialty Ammo   
 • 5.56/.223 Ultra Stealth Match Subsonic
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 • 7.62/.308 PBS-Precision Bonded Subsonic

 • .300 Winchester Magnum Subsonic
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Frangible Ammo
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Government & Military
 • 40mm CQB
 • 7.62/.308 Limited Penetration
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"The Straight Dope" Information and Tools
 • READ ME Proper Use of Subsonic Ammunition
 • Why use Phosphate Removal for Subsonic Ammunition?
 • Instructions on how to use EBR Phosphate Removal

 • Ballistics Calculator
 • Greenhill Formula For Rifling Twists
 • Twist Rate, continued

 • First-Round Pop
 • Subsonics Do Not Like Long Barrels!
 • The Use of Mil-Dots & Subsonic Ammunition
 • 7.62 Thumper vs. 7.62 PBS?
 • Speed of Sound Chart
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Use of Subsonic Ammunition
 • Verifying Stability
 • FAQ - Frequently Asked Questions

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VerifyingStability: Will I get baffle strikes with this ammunition?

The method to verify stability is to place a piece of heavy cardboard 10’ or so from the muzzle and shoot several  rounds of the ammunition in question through it with the suppresser off.  If the hole is perfectly round, you are stable.  If any are at all oblong, you run the risk of baffle strikes.  This is true of any ammunition in any weapon system.

 

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