Quote:
...2.700" may not be safe.
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It might not be so much a safety issue (though as UncleN notes it could be), but more
a "...are you
into -- or are you
out of..." the lands. Sitting at 2.7 might
find you both, and that can get very inconsistant.
postscript: My AR shooting 55grainers
loves to have the bullet as much as 10 thou
into the lands -- but the powder charge was worked up against that condition.