04 June 2009, 00:47
Prewar70375 H&H Load-Veloctiy Estimate
Can anyone tell me approximate velocity of this load:
80 gr. W760
270 gr. Bear Claw
Fed 215 primer
3.60 oal
Winchester brass
Thanks.
04 June 2009, 00:54
BNagelBarnes data for their X and solids is ca. 2700 fps
06 June 2009, 05:46
greenjoyYour question is a little confusing because according to my Speer manual #14 their is no 270gr Bear Claw.
Speer makes:
- a 250 gr TBBC (Trophy Bonded Bear Claw).
- a 270 gr Spitz BTSP (Boat Tail Soft Point).
- a 285 gr GS SP (Grand Slam Soft Point).
They also make a lighter 235 gr and heavy 300 gr bullets.
If it is the Speer 270 gr. Spitz BTSP your are inquiring velocity info on, then my Speer manual says with a Winchester case and CCI250 primer loaded with W760 the minimum charge is 80.0 grs and that should make 2525 Fps from a 24" bbl.
The max charge is 82.0 compressed for a velocity of 2564 Fps.
Hope this helps.