Really not a big advantage about 2 -2.5 grains more powder and about 100 to 125 more fps with the heavy bullets about 6 one half dozen the otherAdvantage to necking the 270Wby to 6.5 vs. just going .264Win?
7.5 years after the start of this thread, there are so many more offerings in both cartridges and bullets to specifically pursue pronghorn.
I just built a fast twist 25SST to push the 131s @ 3230fps for pronghorn next fall. Should hammer the speedgoats. Also building a 6.5SS w. 20" 1:7.5" for the 144 Hyb or 150 SMKs to use with a suppressor. Taylor and I should be set next August.
Nice set up, and looks like you have it dialed in. If you do you part you will be coming home with nice Goat.I just bedded this tonight after getting the Boyds stock in. It's a Mossberg 4x4 in 25-06 I bought ages ago to fly with deer hunting. It was cheap and if the airlines lost it, oh well. I mounted a Vortex HST 4-16 on it. Timney makes a drop-in replacement trigger for the LBAs now and that's on the way.
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My dad used a 700 Mountain Rifle in 25-06 for decades to hunt blacktail with a 120gr Speer Boattail. I watched him shoot a ton of deer with it and they all dropped like a rock so I built up a load for this one years ago when I got it. Pretty solid for a rifle under $300. Hopefully I can bag a speed goat with it this year.
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