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When I read the section on Gas guns in the Sierra manual I came away with what they were saying is that their loads and powder choice for an AR 15 had to do with the pressure at the gas port needed to be within certain parameters to work effectively and not make the bolt slam back to hard and damage the AR. Sounds logical to me. This is just what I thought they were sayingI my self use the Sierra loading section for the AR15 when loading for my AR 15. I don't have any fancy equipment to check pressure or anything else so I will go with what is printed in the AR section. They know a lot more than I do.DAB
When I read the section on Gas guns in the Sierra manual I came away with what they were saying is that their loads and powder choice for an AR 15 had to do with the pressure at the gas port needed to be within certain parameters to work effectively and not make the bolt slam back to hard and damage the AR. Sounds logical to me. This is just what I thought they were saying
I my self use the Sierra loading section for the AR15 when loading for my AR 15. I don't have any fancy equipment to check pressure or anything else so I will go with what is printed in the AR section. They know a lot more than I do.
DAB
