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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
215gr Berger Hybrid in the 308Win
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<blockquote data-quote="MontanaMarine" data-source="post: 735679" data-attributes="member: 268"><p>Jeff, Actually I saw a loss in velocity as compared to the 208s. The moly'd 208 over 49gr RL17 usually gets about 2675 fps in the 26" rifle, and 2575 fps in the 20.5" rifle.</p><p></p><p>I know you saw gains in velocity, and I do not doubt it. There are a lot of different dynamics going on in different case volumes and different powders. H1000 in the 300 WinMag, and RL17 in the 308Win are a good ways apart from each other in volume and burn rate.</p><p></p><p>The 49gr charge left visible flattening on my primers, although there was not a hint of ejector swipe, nor stiffness in bolt lift. Considering the 30F temps, I would not want to bump up the powder charge any higher. In 70-90F weather, I suspect velocity would be more in the 2650 fps range.</p><p></p><p>I was very pleased wit the accuracy from the 26" rig. I suspect playing with seating depth could yield pretty consistent .5 moa accuracy.</p><p></p><p>I'll likely buy a box of the 215s myself, to continue with some long range tests.</p><p></p><p>Shane</p></blockquote><p></p>
[QUOTE="MontanaMarine, post: 735679, member: 268"] Jeff, Actually I saw a loss in velocity as compared to the 208s. The moly'd 208 over 49gr RL17 usually gets about 2675 fps in the 26" rifle, and 2575 fps in the 20.5" rifle. I know you saw gains in velocity, and I do not doubt it. There are a lot of different dynamics going on in different case volumes and different powders. H1000 in the 300 WinMag, and RL17 in the 308Win are a good ways apart from each other in volume and burn rate. The 49gr charge left visible flattening on my primers, although there was not a hint of ejector swipe, nor stiffness in bolt lift. Considering the 30F temps, I would not want to bump up the powder charge any higher. In 70-90F weather, I suspect velocity would be more in the 2650 fps range. I was very pleased wit the accuracy from the 26" rig. I suspect playing with seating depth could yield pretty consistent .5 moa accuracy. I'll likely buy a box of the 215s myself, to continue with some long range tests. Shane [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
215gr Berger Hybrid in the 308Win
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