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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
115g VLD Berger for deer?
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<blockquote data-quote="brianwinzor" data-source="post: 35310" data-attributes="member: 1067"><p>Fifty Driver, Thanks for the information. I would have to agree that 3455 fps and 3/8 inch accuracy (10 shot group) from 58.0 grains Re 22 from a standard 24 inch barrel is outstanding accuracy,let alone an impressive velocity. I don't in anyway doubt your results, but am trying to reconcile the reasons for the substantial difference in velocities between your rifle and mine.</p><p></p><p>Could some of the difference be related to to the altitude, as I do my testing at a location in South Australia which is about 100 feet above sea level, and I note from my old Atlas that about 85% of Montana is 1,000 metres (3300 feet or higher).</p><p></p><p>MY Rifle 1 referred to above, was purchased as a new Sako 25/06 sporter with 24 inch barrel in 1987. I note from my chronograph records of 7/6/1987 that I did achieve 3400+ fps, using 59.0 grains WW 785, (a powder which has a similar burning rate to Reloader 22). </p><p></p><p>Ironically this was my last group fired prior to having it rechambered to the AI version. At this stage I had fired about 200 shots (mostly testing). However, my notes from that day (23C) suggest that it was probably just above maximum pressure. My records for that day;</p><p>Remington cases, Remington 91/2 primer, Nosler 100 grain SPBT</p><p>58.5 grains WW785 - 3373 fps (Max)</p><p>59.0 grains WW785 - 4118 fps (Above Max)</p><p></p><p>On the same day using Remington cases, Remington 91/2 primer and Nosler 120 grain SPBT, I achieved:</p><p>55.5 grains H4831 - 3018 fps</p><p>56.0 grains H4831 - 3038 fps</p><p>56.5 grains H4831 - 3071 fps (Max)</p><p></p><p>56.0 grains WW 785 - 3163 fps (Max)</p><p>56.5 grains WW 785 - 3175 fps (Above Max)</p><p></p><p>Most of the better groups in this rifle were between 0.5 and 0.75 moa, although several sub 0.5 groups were obtained.</p><p></p><p>My rifle 2, was custom built 25/06 in 1982 on a Sako L61R action, Shilen SS 24 inch barrel, and Fajen walnut stock. </p><p></p><p>It was stolen prior to me firing a shot, and recovered by South Australian police from a drug dealer who used it in an armed hold up last year, and returned to me still unfired. This rifle was then used for about 100 shots prior to the same gunsmith rechambering to the AI version. </p><p></p><p>I note that this rifle seems to achieve maximum pressure with 1 grain less powder than the Sako Sporter. It has what I consider standard neck, as the neck on loaded cases are .285 and those on fired cases are .291. </p><p></p><p>However there is no doubt that the accuracy with this Shilen SS barrel is noticeably better (as you expect) than that of the Sako barrel. I have already fired numerous sub 0.5 moa groups with this rifle using both the Nosler 100 and 115 grain Ballistic tips, which I consider excellent for a hunting rifle. Regards, Brian.</p></blockquote><p></p>
[QUOTE="brianwinzor, post: 35310, member: 1067"] Fifty Driver, Thanks for the information. I would have to agree that 3455 fps and 3/8 inch accuracy (10 shot group) from 58.0 grains Re 22 from a standard 24 inch barrel is outstanding accuracy,let alone an impressive velocity. I don't in anyway doubt your results, but am trying to reconcile the reasons for the substantial difference in velocities between your rifle and mine. Could some of the difference be related to to the altitude, as I do my testing at a location in South Australia which is about 100 feet above sea level, and I note from my old Atlas that about 85% of Montana is 1,000 metres (3300 feet or higher). MY Rifle 1 referred to above, was purchased as a new Sako 25/06 sporter with 24 inch barrel in 1987. I note from my chronograph records of 7/6/1987 that I did achieve 3400+ fps, using 59.0 grains WW 785, (a powder which has a similar burning rate to Reloader 22). Ironically this was my last group fired prior to having it rechambered to the AI version. At this stage I had fired about 200 shots (mostly testing). However, my notes from that day (23C) suggest that it was probably just above maximum pressure. My records for that day; Remington cases, Remington 91/2 primer, Nosler 100 grain SPBT 58.5 grains WW785 - 3373 fps (Max) 59.0 grains WW785 - 4118 fps (Above Max) On the same day using Remington cases, Remington 91/2 primer and Nosler 120 grain SPBT, I achieved: 55.5 grains H4831 - 3018 fps 56.0 grains H4831 - 3038 fps 56.5 grains H4831 - 3071 fps (Max) 56.0 grains WW 785 - 3163 fps (Max) 56.5 grains WW 785 - 3175 fps (Above Max) Most of the better groups in this rifle were between 0.5 and 0.75 moa, although several sub 0.5 groups were obtained. My rifle 2, was custom built 25/06 in 1982 on a Sako L61R action, Shilen SS 24 inch barrel, and Fajen walnut stock. It was stolen prior to me firing a shot, and recovered by South Australian police from a drug dealer who used it in an armed hold up last year, and returned to me still unfired. This rifle was then used for about 100 shots prior to the same gunsmith rechambering to the AI version. I note that this rifle seems to achieve maximum pressure with 1 grain less powder than the Sako Sporter. It has what I consider standard neck, as the neck on loaded cases are .285 and those on fired cases are .291. However there is no doubt that the accuracy with this Shilen SS barrel is noticeably better (as you expect) than that of the Sako barrel. I have already fired numerous sub 0.5 moa groups with this rifle using both the Nosler 100 and 115 grain Ballistic tips, which I consider excellent for a hunting rifle. Regards, Brian. [/QUOTE]
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115g VLD Berger for deer?
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