I give up! I have a custom 24" Sako/Kreiger that will not shoot 139/140 gr. bullets. It also doesn't like Reloader 19 or 22! I'm starting to get promising results with 154 gr. Flat Base and SST Interbond Hornadys with IMR7828 and H4831sc. Does anyone have any accurate loads using these components and any idea what kind of velocity would be realized in a 24" barrel? Any help would be greatly appreciated! Thanks

Old Dog I've had very good groups in a couple of 280s with 154 and 160 gr bullets with IMR 4831.Rem cases CCI 250 primers and 154Hornadys. Start at 54 grs and work up.Best groups are near max loads. 160 Speer BTs are also good and max load will be a grain or two less.I have also found RL powders to be fussy about which primer you use.I have a couple rifles that shoot much better groups with the Win LR primer. If I change to a CCI250 or a Fed 215 primer the groups open up.These are with belted cases.Hope this helps.

Here is my fix , 57 gr. IMR 4831 , WMRM primer , Rem brass (2.540) , 139 gr. SST seated to cannular (no crimp) gives 2960 fps. from 22" pipe. My rifle does good with most powders but drives nails with IMR 4831 in all bullet weights. I know it's not the 154 gr. load you want but sometimes the cure is just a component change. Anyway good luck and keep pluggin.....

[ 05-04-2003, 16:32: Message edited by: Bowzer ]

I've got 3/4" groups consistently in my two .280 Remingtons, with 154 gr. Hornady Interloks and 55 grs IMR 4350 and CCI primers, and, same groups with 160 gr. Nosler Partitions and 54 grs. IMR 4350. Rifles are Remington 725 & Pachmayr Custom 1909 Oberndorf Argentine Mauser, and Apex 22" bbl.

Chrono'd at 2872 FPS 160 gr. Nosler and 2915 FPS with the 154 gr. Honnady.

FWIW. L.W.