Thread: 264 Win Mag load data

I have had a play with some different powder / projectile combinations recently thanks to a starting point from @Kiwi Greg. Did 1 grain increment ladders and will refine the nodes i want to test now I know the left and right of arc.

All loaded in new Hornady brass, CCI LRM primer, COAL 3.300", 26" Barrel, LabRadar for velocities.

charge / vel / remarks

AR2225 130gr Sierra Game Changer

65 3115
66 3142
67 3169
68 3216
69 3258 no pressure signs, will go higher.

AR2217 120gr Hornady GMX

66 3237
67 3309
68 3354
68.5 3393 no pressure
69 3420 Sticky bolt lift, ejector and swipe marks
70 3480 Blown primers / smoke primer leak, too hot!

RL33 143gr Hornady ELD-X

70 3043
71 3068
72 3109
73 3145
74 3177 faint ejector
75 3220
76 3261 faint primer cratering
77 3326 ejector mark and faint swipe
78 3348 too hot, primer leak
79 not fired
80 not fired

Reloader seems to get good velocities from the 140 class pills which my former load was a 140gr SST at 3050 with 64gr AR2217. RL33 looks to be a bit dirtier but i look after the barrel and it is a hunting rig so heaps of life left.

Cheers.