For hunting to 425 yds, I decided to do a comparison of 6.5 CM to 270 WCF to 270 WSM. This is a useful comparison for hunters, as almost all game is taken within this range. All data is run through a standard G1 calculator, bullet and ballistics numbers are published Nosler data. Env. conditions are default and the same for each run including 10 mph wind at 90 degrees to show wind drift differences if any. Sight height 1.5" Rifle zero: a very common hunting zero 250 yds.
Will the 6.5 with it's sleek new bullets and trophy room full of hardware blow away the competition? Will the old 270 be hanging tough against the new kid on the block? In the short, fat, and lookin like a syringe category is 270 WSM able to ballistically match the 6.5 CM for the average hunter? We shall soon see.
6.5 Creedmoor 142 ABLR
Max Muzz. Vel. 2731
BC 0.625
SD .291
425 yd Vel. 2151
425 yd En. 1469
425 yd. Drop 21.26"
425 yd. Deflection 10.5"
270 Win. 140 AB
Max Muzz. Vel. 3018
BC 0.496
SD .261
425 yd Vel. 2254
425 yd En. 1579
425 yd. Drop 18.27"
425 yd. Deflection 11.8"
270 WSM 140 AB
Max Muzz. Vel. 3237
BC 0.496
SD .261
425 yd Vel. 2437
425 yd En. 1846
425 yd. Drop 15.62"
425 yd. Deflection 10.7"
If I have misquoted a stat, please feel free to correct me.
Therefore, I find no evidence of collusion, and will release a redacted copy of my report in due time.
Unless your target only groggily emerges from its deep earthen lair in galeforce winds and also happens to be exceedingly thin, I would not trade in that old 270 just yet!
Will the 6.5 with it's sleek new bullets and trophy room full of hardware blow away the competition? Will the old 270 be hanging tough against the new kid on the block? In the short, fat, and lookin like a syringe category is 270 WSM able to ballistically match the 6.5 CM for the average hunter? We shall soon see.
6.5 Creedmoor 142 ABLR
Max Muzz. Vel. 2731
BC 0.625
SD .291
425 yd Vel. 2151
425 yd En. 1469
425 yd. Drop 21.26"
425 yd. Deflection 10.5"
270 Win. 140 AB
Max Muzz. Vel. 3018
BC 0.496
SD .261
425 yd Vel. 2254
425 yd En. 1579
425 yd. Drop 18.27"
425 yd. Deflection 11.8"
270 WSM 140 AB
Max Muzz. Vel. 3237
BC 0.496
SD .261
425 yd Vel. 2437
425 yd En. 1846
425 yd. Drop 15.62"
425 yd. Deflection 10.7"
If I have misquoted a stat, please feel free to correct me.
Therefore, I find no evidence of collusion, and will release a redacted copy of my report in due time.
Unless your target only groggily emerges from its deep earthen lair in galeforce winds and also happens to be exceedingly thin, I would not trade in that old 270 just yet!