currently have 16" chrome lined barrel on my ar.
can anyone with experience tell me what the difference in groups would be in the barrel was 20" instead of 16"....what about non chrome lined vs chrome lined?
at 100 yards?
at 300-500ish yards?
can anyone with experience tell me what the difference in groups would be in the barrel was 20" instead of 16"....what about non chrome lined vs chrome lined?
at 100 yards?
at 300-500ish yards?