TooTaxed
Member
Folks, I'd like to load a batch of 5.56, and I have available 55-gr FMJBT military surplus bullets (new/unmarked from Midway) and 4895 powder. I plan to load ten ea. 23.0, 23.5, 24.0, and 24.5 gr loads for 100-yd accuracy test purposes. Does anyone have any pet loads including pressure data?
My rifle is a "new" condition Colt SP1 CAR-15 that has been in storage for over 20 years. The barrel is stamped "C MP Chrome Bore" but does not appear to identify what the bore twist is. Can you tell me what the barrel twist is?
My rifle is a "new" condition Colt SP1 CAR-15 that has been in storage for over 20 years. The barrel is stamped "C MP Chrome Bore" but does not appear to identify what the bore twist is. Can you tell me what the barrel twist is?