I love my XC, But just discovered that my Cos21 3.5 V ported with a brake pedal is flatter shooting gun than my XC with a brake pedal. I did 4 groups and the Cos was 0.04 to the XC 0.10

Yes it's close, but never thought a 3.5" would even be close to the XC
Which is known as a very flat shooting gun. More proof my brake pedal really works!

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#firearmbrakepedal
#cosaintarms
#purekustom

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