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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Looking for a good all around bullet for .308 win.
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<blockquote data-quote="abinok" data-source="post: 63903" data-attributes="member: 16"><p>These loads were fired in a Savage 110 "police" with a 26" barrel. They are <strong>over max</strong> according to sierra, but under in several other manuals. Federal Gold Medal primers used for all loads.</p><p></p><p>168 gr SMK </p><p>43.6 grains of IMR 4895 2812fps</p><p> </p><p> </p><p>175 gr SMK</p><p>42.4 grains IMR 4895 2709fps</p><p> </p><p>175 gr SMK </p><p>45.0 grains of Varget 2770fps</p><p></p><p>These loads are just under max, just a little slower...</p><p></p><p>168 gr SMK</p><p>48.4 grains of H-380 2702fps</p><p></p><p>175 gr SMK</p><p>47.0 grains of H-380 2597fps</p><p></p><p>It dosn't really matter which load use, you can push the 168 about 100fps faster than the 175.</p><p>if you look at energy, the 175 is better everywhere past 300</p><p>if you look at velocity, th 175 will overtake and pass the 168 at 450yds.</p><p>I ran a camparison with a 250 yd zero for both bullets, and the two never seperate more than .25" from 0yds to 250.</p><p>past 850yds, the 168 will take more moa to get on target, because the 175 actually has a flatter trajectory out there.</p><p>One last thought to sway you, the 168 gr has dynamic stability problems, and will not shoot through the transsonic barrier. The 168 goes transsonic around 900 yds, so kiss the chance at a 1000 yd shot good bye.</p><p>The 175 stays supersonic to just over 1000, and stays accurate even after it goes through the sound barrier.</p><p>At 900 yds the 175 in a 10mph crosswind has 10" less wind drift.</p><p>A friend shoots the "little" (he hates when I say that) 308 from a Knight sr25. We tried the 168 gr Federal GMM at my 1350 yd, 8x8 foot target. never hit it in 30 rounds. Tried the 175 Federal GMM, and once we had the elevation (took about 5 shots I think...) every round burrowed throught the target.</p><p>For me the 308 win=175 smk</p></blockquote><p></p>
[QUOTE="abinok, post: 63903, member: 16"] These loads were fired in a Savage 110 "police" with a 26" barrel. They are [b]over max[/b] according to sierra, but under in several other manuals. Federal Gold Medal primers used for all loads. 168 gr SMK 43.6 grains of IMR 4895 2812fps 175 gr SMK 42.4 grains IMR 4895 2709fps 175 gr SMK 45.0 grains of Varget 2770fps These loads are just under max, just a little slower... 168 gr SMK 48.4 grains of H-380 2702fps 175 gr SMK 47.0 grains of H-380 2597fps It dosn't really matter which load use, you can push the 168 about 100fps faster than the 175. if you look at energy, the 175 is better everywhere past 300 if you look at velocity, th 175 will overtake and pass the 168 at 450yds. I ran a camparison with a 250 yd zero for both bullets, and the two never seperate more than .25" from 0yds to 250. past 850yds, the 168 will take more moa to get on target, because the 175 actually has a flatter trajectory out there. One last thought to sway you, the 168 gr has dynamic stability problems, and will not shoot through the transsonic barrier. The 168 goes transsonic around 900 yds, so kiss the chance at a 1000 yd shot good bye. The 175 stays supersonic to just over 1000, and stays accurate even after it goes through the sound barrier. At 900 yds the 175 in a 10mph crosswind has 10" less wind drift. A friend shoots the "little" (he hates when I say that) 308 from a Knight sr25. We tried the 168 gr Federal GMM at my 1350 yd, 8x8 foot target. never hit it in 30 rounds. Tried the 175 Federal GMM, and once we had the elevation (took about 5 shots I think...) every round burrowed throught the target. For me the 308 win=175 smk [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Looking for a good all around bullet for .308 win.
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