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HiBC · February 15, 2013, 01:27 PM

Unless you are seeing pressure signs,or approaching max,I wouldn't necessarily take that loosening of group to be a "stop,back up"

I'd pour more powder in,so long as you are inside max,and not seeing trouble.

See what happens about 45 gr,or wherever your upper limit is.Note,Sierra shows a Max of 43.5 gr in the 5th ed.My 2011 Hogdon annual shows 46 gr compressed with the 168 gr MK.Brother is generally using Nos Custom Comps.

http://thefiringline.com/forums/atta...9&d=1316500028

That link is firing line,it will show you a 300 d target,three shots to check zero before antelope hunt.165 gr Ballistic Tips and someplace between 45 and 46 gr Varget in WW cases.Its not a fluke.

This is at 600,168 gr Nosler Custom Comp,Varget,2700 fps,20 in bbl

http://thefiringline.com/forums/atta...4&d=1307209204

February 15, 2013, 01:27 PM	#7
HiBC Senior Member Join Date: November 13, 2006 Posts: 8,283	Unless you are seeing pressure signs,or approaching max,I wouldn't necessarily take that loosening of group to be a "stop,back up" I'd pour more powder in,so long as you are inside max,and not seeing trouble. See what happens about 45 gr,or wherever your upper limit is.Note,Sierra shows a Max of 43.5 gr in the 5th ed.My 2011 Hogdon annual shows 46 gr compressed with the 168 gr MK.Brother is generally using Nos Custom Comps. http://thefiringline.com/forums/atta...9&d=1316500028 That link is firing line,it will show you a 300 d target,three shots to check zero before antelope hunt.165 gr Ballistic Tips and someplace between 45 and 46 gr Varget in WW cases.Its not a fluke. This is at 600,168 gr Nosler Custom Comp,Varget,2700 fps,20 in bbl http://thefiringline.com/forums/atta...4&d=1307209204 Last edited by HiBC; February 15, 2013 at 03:35 PM.