Question for you ruger mini 30 guys.

Really??? This is a quote taken from the reload bench:

The Ruger Mini-30, the first U.S. commercial rifle to be produced in this caliber, has a groove diameter of .308". The design of it's chamber throat enables it to handle bullets of .308" and .311" diameters.



.................i have read some people use .311 and some use .308

..................my question is, what performs better??
 
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