Super preliminary results from the new 270 win barrel and the 139 gr AHs. Here's a bit of variety in the powder selection.
Tikka T3
xcaliber 270 win 1-7 twist, 24" done by Crown Ridge
139gr AH
Win Brass 1x fired, neck turned, primer pocket uniformed, trimmed & full Length sized
3.388 COAL
1/8 turn crimp LEE FCD
CCI 200 primers
RL 16 - 70 deg F
53.0 3017
54.0 3080
54.5 3134 slight stiff bolt, light ejector mark
55.0 3158 slight stiff bolt, light ejector mark Stop
H100V - 78 deg F
54.0 3055
55.0 3124
56.0 3157 slightly stiff bolt
57.0 3218 slightly stiff bolt + ejector mark
57.5 3238 Blown primer??!!!! Once again, these bullets seem to pressure out quick, be careful!
H414 - 82 deg F
47.0 2777
-
49.0 2916
49.5 2919
50.0 2959
50.5 2992
51.0 2988
51.5 3049 Slight stiff bolt
52.0 3053 Slight stiff bolt + slight primer crater End of ladder, stopping.
Other notes:
This barrel seems to have potential. I have not been shooting for groups but each of these ladders is holding well under 1.5 MOA, the RL16 ladder was ~.75 MOA
I'll try Staball 6.5 next, then possible H4350. Then from there finish break in and finalize a load.