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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
200 grain partition for 30-06
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<blockquote data-quote="Buttstock" data-source="post: 2114545" data-attributes="member: 105839"><p>I have used the .308" 200 grain Speer hot-cor flat base spitzer over 54 grains IMR 4350. No chrono, but guessing about 2525+ fps from a 22" barreled 30-06. It shoots flatter than you would think. Zero at 200 yards, it is about 2.5" high at 100 yards and down almost 9" at 300 yards (measured). Trajectory isn't much different from a 180 grain at about 2700 fps.</p><p></p><p>You can apply a "triple double" estimate for trajectory to 500 yards. For a spitzer bullet, zeroed at 200 yards: take the drop at 300 yards (ie 9"), and TRIPLE it to get your drop at 400 yards (~3x9" = 27" drop at 400 yards, or just under 7 moa drop-(27/4 = 6.75 moa) from your 200 yard zero). Then DOUBLE the 400 yard drop to get the 500 yard drop (27" x2 = 54", or almost 11 moa from your 200 yard zero. 54/5= 10.8 moa). Pretty close estimation for spitzer bullets.</p><p></p><p>Apply this pragmatically. My 30-06's 4x Leupold has a duplex reticle. There is 9 moa from crosshair intersection, to the pointed lower plex post. At 300 yards, you hold the crosshair intersection on the upper body fur line for a central chest bullet impact. At 400 yards, you hold the lower plex post point just below the top fur line for an upper center chest bullet point of impact. 200 yards or closer? Hold the crosshair intersection in the center of the chest, aligned with the front leg (broadside aspect for all scenarios).</p><p></p><p>Ranging is easy. At 300 yards, A deer (18" high body) fills 1/3 of the space between upper and lower vertical plex points. At 400 yards, the deer's body fills 1/4 of that spacing. Makes for a very simple, effective sighting system. It also shows you don't need an expensive scope that had a zoom range of 4-6, and an upper magnification of 12, 18 or 24 power. Nor do you need to "dial up" elevation. The "KISS" system personified.</p><p></p><p>The 200 grain carries about 2000 ft-lbs of ME at 300 yards with a MV of 2525+ fps, and holds well inside 1.5 moa (more like 1.25 moa) to 300 yards from my JC Higgins model 50 30-06, FN m98 action). In my opinion, this is an overlooked bullet. Recoil is on about on par with 180 grainers. Very satisfied with it.</p></blockquote><p></p>
[QUOTE="Buttstock, post: 2114545, member: 105839"] I have used the .308" 200 grain Speer hot-cor flat base spitzer over 54 grains IMR 4350. No chrono, but guessing about 2525+ fps from a 22" barreled 30-06. It shoots flatter than you would think. Zero at 200 yards, it is about 2.5" high at 100 yards and down almost 9" at 300 yards (measured). Trajectory isn't much different from a 180 grain at about 2700 fps. You can apply a "triple double" estimate for trajectory to 500 yards. For a spitzer bullet, zeroed at 200 yards: take the drop at 300 yards (ie 9"), and TRIPLE it to get your drop at 400 yards (~3x9" = 27" drop at 400 yards, or just under 7 moa drop-(27/4 = 6.75 moa) from your 200 yard zero). Then DOUBLE the 400 yard drop to get the 500 yard drop (27" x2 = 54", or almost 11 moa from your 200 yard zero. 54/5= 10.8 moa). Pretty close estimation for spitzer bullets. Apply this pragmatically. My 30-06's 4x Leupold has a duplex reticle. There is 9 moa from crosshair intersection, to the pointed lower plex post. At 300 yards, you hold the crosshair intersection on the upper body fur line for a central chest bullet impact. At 400 yards, you hold the lower plex post point just below the top fur line for an upper center chest bullet point of impact. 200 yards or closer? Hold the crosshair intersection in the center of the chest, aligned with the front leg (broadside aspect for all scenarios). Ranging is easy. At 300 yards, A deer (18" high body) fills 1/3 of the space between upper and lower vertical plex points. At 400 yards, the deer's body fills 1/4 of that spacing. Makes for a very simple, effective sighting system. It also shows you don't need an expensive scope that had a zoom range of 4-6, and an upper magnification of 12, 18 or 24 power. Nor do you need to "dial up" elevation. The "KISS" system personified. The 200 grain carries about 2000 ft-lbs of ME at 300 yards with a MV of 2525+ fps, and holds well inside 1.5 moa (more like 1.25 moa) to 300 yards from my JC Higgins model 50 30-06, FN m98 action). In my opinion, this is an overlooked bullet. Recoil is on about on par with 180 grainers. Very satisfied with it. [/QUOTE]
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