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Handloader
- Dec 26, 2007
- 4,975
- 24
I have been working on this for some time now and finally the 257-300Wby Mark V with B&C metalist stock with Zeiss Conquest 4.5-14x44mm and load work done in developing a good hunting load.
257-300Wby Mark V 26" reamed Weatherby factory barrel with Zeiss conquest.
Average Velocity of this round 86grs Retumbo 100gr TSX
257-300Wby Mark V 26" reamed Weatherby factory barrel with Zeiss conquest.




Average Velocity of this round 86grs Retumbo 100gr TSX

