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Rifles, Reloading, Optics, Equipment
Reloading
Barnes Triple Shock update
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<blockquote data-quote="kraky" data-source="post: 62053" data-attributes="member: 180"><p>Are you showing any signs of pressure at all in the .308 with that load?? How many inch barrel?? I've got a box of the 130tsx sitting here and haven't yet assembled any .308 so I find your info good!! Wow I studied the bullet a little....there is so very little "bearing area" to it. There is just a tiny bit of contact between the boattail and the first groove. And just a tiny bit of contact above the 2nd groove because it slopes to the olgive right away. I'd say the total brg area is about 2x's the thickness of the middle rib. I can't think that moly would really have much effect with so little area actually touching the barrel on the "ride through"!!!! It's pretty ingenious---very little material touching the barrel but probably just enough over a wide enough distance to make it stabilize!!</p><p>I'm kinda thinking 4000 fps will be possible in my 30-378. If the computer forcast is right a 350 yd zero would get 3.6" high on it's way to 350yds, down only 5" at 425 yds, and down 12" at 500 yds. WOW--takes alot of guesswork out of "ranging".</p></blockquote><p></p>
[QUOTE="kraky, post: 62053, member: 180"] Are you showing any signs of pressure at all in the .308 with that load?? How many inch barrel?? I've got a box of the 130tsx sitting here and haven't yet assembled any .308 so I find your info good!! Wow I studied the bullet a little....there is so very little "bearing area" to it. There is just a tiny bit of contact between the boattail and the first groove. And just a tiny bit of contact above the 2nd groove because it slopes to the olgive right away. I'd say the total brg area is about 2x's the thickness of the middle rib. I can't think that moly would really have much effect with so little area actually touching the barrel on the "ride through"!!!! It's pretty ingenious---very little material touching the barrel but probably just enough over a wide enough distance to make it stabilize!! I'm kinda thinking 4000 fps will be possible in my 30-378. If the computer forcast is right a 350 yd zero would get 3.6" high on it's way to 350yds, down only 5" at 425 yds, and down 12" at 500 yds. WOW--takes alot of guesswork out of "ranging". [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Barnes Triple Shock update
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