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Old March 15, 2000, 02:14 PM   #10
Ric
Senior Member
 
Join Date: March 14, 2000
Posts: 107
Gunmart,

The launcher is not the issue here, the bullet is. The 180 gr Fail Safe info provided by Huntschool is directly relevant to the .308 Win.

Assuming the 300 WM is the 300 Win Mag, from the Winchester factory data for the 180 gr fail safe 300 Win Mag, assuming 24" test barrels:

muzzle = 2960 fps
300 yds = 2307 fps (range specified by Huntschool)

Although there is no factory load listed for the 180 gr fail safe in .308 win, the other 180 gr offerings are both listed at 2620 fps mv. A quick ballistic calculation gives about 2300 fps at 100 yds for a 180 gr fail safe launched at about 2600 fps. So i'd conclude the same results on said elk for a .308 but at 100 yds.

(If 300 WM = 300 Weatherby Mag then you might get a similiar result with the .308 Win's barrel touching the hide.)


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-ric
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