Hi bjp Thanks for the input
my rig is a tad shorter @ just over 13 inches
90 grain xtp @ 8.0 grain as50n had 1/22 flat primers so wasnt subsonic
got down to 5.5 grain still fast but then ventured off to other powders [my bad ]
Have now made a 5 set of your brew to test
Cheers Mate
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