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6 mm and 6.5 or 260.
Hwallbanger
Member Posts: 48 ✭✭
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Comments
Well The 6mm bullets will be 0.021" undersize, so I don't quite know what you're getting at.
You can use the 6mm bullets IF you first resize your 260 brass down to 243 and happen to have a .243 to shoot them in.
6mm bullets in a 260 or 6.5. nope with out great danger.
Okay,
6mm is a .243" diameter bullet. 6.5mm and .260 (generic nominal size) are .264" diameter bullets. If you have more specific issues do illuminate us as to what you are asking.