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Flattest Shooting Hunting Bullet 257 Weatherby Vanguard 26" pipe

115 BT at 3500 which is hot only has 1200 ft pounds to 575 yards. At 700 it's a paultry 937 ft pounds. That's if you can reach 3500. None of mine will. I can get 3500 with a 110 in one of mine. I have 3 257bees right now and have had a dozen or so. I just don't consider it a long range cartridge with the 10 twist barrels. Now if you have the Bibbs running 3450 it will have 1200 ft pounds at 685 yds.
Shep
 
Ballistics Calculator Enhanced Version
Ballistic Calculator
Load DataRangeVel.EnergyTotalPath
Cartridge257 Weatherbyydsfpsft/lbsDropInch
Caliber0.2570 347529490.0-1.5
Powder TypeRL 2510032322551-1.52.4
Powder Wt (gr)0.020030032202-6.43.1
Case TypeNorma30027851894-14.90.0
Bullet TypeNosler A-bond40025791624-28.3-7.9
PrimerFed215GM50023801383-46.5-20.7
60021911172-71.4-40.1
Ballistic Data7002011987-103.1-66.3
Velocity (fps)34758001838825-142.4-100.1
Bullet Wt (gr)1109001679688-195.1-147.4
Bullet BC0.41810001530571-258.6-205.4
Start Distance011001389471-334.7-276.0
Range Increment10012001275397-436.8-372.7
Altitude (ft)250013001169333-554.5-484.9
 
I think it would work. But it sure shows high BC helps. Compare your numbers to my #30 post with the 131 BJ. The 131 out of a 25-284 at 3100-3150 FPS has about the same velocity and ft-lbs at 1000 yds as the 110 AB does at 700 yds.
 
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