DEVELOPMENT: The F4 Defense line of match grade ammunition was developed by Spark Munitions specifically for our Small Frame AR10’s and AR15’s. While all F4 Defense rifles shoot multiple loads with excellent accuracy and performance we wanted to offer our customers a custom hand load specific to our line of rifles.
The 142 grain Sierra MatchKing bullet has a longer ogive radius than the 140 grain bullet and thus a higher ballistic coefficient with less sensitivity to crosswinds.
SPECIALLY MADE PETERSON BRASS
Cases are carefully selected based on strict criteria: wall thickness uniformity, internal capacity, case weight, wall concentricity and are Annelid.
NON TEMPERATURE SENSITIVE POWDER
Powder is matched carefully to each specific load for consistent accuracy and will reduce velocity changes due to temperature and elevation changes.
TEST BARREL (24″) VELOCITY 2700 FPS
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