Methodical load development by Discreet Ballistics has created a system which will minimize point of impact shift allowing the shooter greater confidence when it’s time to hunt. The Discreet Ballistics’ two load system was conceived so that the shooter of subsonic ammunition can practice with a less costly Target load, and hunt with a premium load utilizing the Selous Machined Expander. Hunting Loads utilize the Selous Machined Expander 188gr solid copper projectile which expands to over three times its original diameter upon entering fluidĮffective range is usually within 75-100 yards due to dramatic bullet drop past 100yds – Muzzle velocity is typically between 900-1050fps depending on the barrel. Supersonic rounds drop to subsonic before they reach 400 yards which can destabilize a bullet and my Primary Arms 3X with a BDC shows it dropping out of the window after 600. Industry leading seating depth consistency. Purpose built bullet designs allow the end user to transition between limited penetration to subsonic or supersonic barrier blind (FBI. ![]() Powder charges consistent to within 0.1 grain For the most up-to-date ammo info for all other caliberscheck out our Best Places to Buy Ammo Online article. Utilizes brand new Discreet Ballistics headstamp brass 300 Blackout ammo check out Palmetto State Armory and True Shot Gun Club. I also added a Sig SB-15 Forearm Brace and an Aimpoint Micro T-2 optic for effective close-range sighting. The 300 BLK has a larger throat and therfore 300 BLK factory loading could cause excess pressure in 300 Whisper (R) / 300 Fireball chambers. It is cross-compatible with 223 Rem/5.56×45 magazines. ![]() This projectile was designed using state-of-the-art ballistics modeling software to maximize stability at subsonic velocities. That model handles both supersonic and subsonic 300 BLK loads with no problem. 300 BLK cartridges and 300-221 Rem Fireball cartridges should be thought of in the same way. The 300 AAC Blackout delivers ballistic performance comparable to 7.62×39, yet possesses a base diameter that optimizes functionality in an AR-type platform. The Discreet Ballistics 300 AAC Blackout 188gr Selous Machined Expander is a subsonic hunting load that incorporates a machined copper 30 Cal projectile (the Selous bullet) which expands at subsonic velocities above 750 feet per second.
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