280 Ackley Improved [Archive] - Page 2

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GaCop

10-02-2009, 06:23 AM

California trip ended up being scrubbed for now. Barrel arrived yesterday and was mounted/headspaced w/o issue. Looking forward to shooting it this weekend.

GaCop

10-05-2009, 06:34 AM

No outstanding groups to report. My best group was with the 150 grain SMK coming in at about 3/4". The 168 and 175 grain loads tested were nothing to brag about. The recoil with the 175 grain SMK is a little stout. I didn't expect stellar performance the first time out. I don't know what the velocities were as my battery in the chronograph crapped out shortly after I started shooting (note to self.............keep an extra battery with the chronograph!

GaCop

10-11-2009, 06:36 AM

Amazing how accuracy improves when all ring screw are tight! Tested 150 gr SMK's and 162 gr A-Max, all shootin around 3/4" at 100 yards.

GaCop

10-17-2009, 07:05 AM

Accuracy gone south again......I suspect the Lee full length die set for increased neck runout after full length sizing. Redding dies on the way.

GaCop

10-20-2009, 07:20 AM

Refireformed the cases and neck runout is back to .001-.002 so the Lee F/L die was definately the culprit. Redding Full length die arrived yesterday so I sized a few cases in it and checked runout.............001-.002 so I'm good to go.

dcloco

10-20-2009, 05:21 PM

Try a normal die lock nut on the Lee dies and get rid of the 0 ring....or flip the Lee die lock nut over. Bet your runout problem will be solved that way as well.

GaCop

10-21-2009, 06:26 AM

Good to know, I'll give that a try!