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Rifles, Reloading, Optics, Equipment
Reloading
300 RUM with 200gr MKS range results
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<blockquote data-quote="rhouser" data-source="post: 297775" data-attributes="member: 18752"><p>I have added this data in an edit (thanks to Joel Russel for pointing out iin his reply that t was missing).</p><p> </p><p>Powder was Retumbo. </p><p>Remington Brass fireformed and necksized only. </p><p>CCI Large Rifle Magnum primer.</p><p>Remington 700 with factory 1:10 26" barrel.</p><p>Sierra 200gr MK's</p><p> </p><p>Range trip 1:</p><p> </p><p>I shot 3 rd sets at 90 to 94 grains over my old olher 35 set at 10 feet from the barrel. </p><p> </p><p>94 gr : High-3063fps Low-3028fps ES-35 Avg-3051 and SD-20.</p><p> </p><p>91 gr best accuracy: High-2920fps Low-2912fps ES-8 Avg-2916 and SD-4</p><p> </p><p>Range Trip 2:</p><p>I went back to the range with loads 90.6 to 91.6 grains to find best load in the 91 grain load range:</p><p>91.2 grains resulted in a .3 in center to center group at 100.</p><p> </p><p>I shot 3 at 95grs that I had left from the first round but no chono. Two went in same hole (literally) the third was up and over by almost 1 inch at a 100. I may have pulled it.</p><p> </p><p>Issues: Best accuracy so far is the 91.2 grains, but, I am only getting 2930 +/ with the load. I will play with primers and seating length, but, the accuracy is decent and the SD and ED are great. (Of course, I can't hunt this bullet). </p><p> </p><p>The 94 gr load chono'd 3063 high and 3028 low with no pressure signs.</p><p>The 95 gr load had no pressure signs but I didn't have my chrono when I shot it. If I extrapolate from my 94 grain to the 95 grain, it should be averaging at least 3080. I still have no pressure signs. How fast are people pushing the 200 gr bullets? If I read pressure signs, I can go up from here, but, I am already at the MAX velocities that I find for the 200 gr. Anybody making 3200 with a 200 gr? </p><p> </p><p>Thanks rc</p></blockquote><p></p>
[QUOTE="rhouser, post: 297775, member: 18752"] I have added this data in an edit (thanks to Joel Russel for pointing out iin his reply that t was missing). Powder was Retumbo. Remington Brass fireformed and necksized only. CCI Large Rifle Magnum primer. Remington 700 with factory 1:10 26" barrel. Sierra 200gr MK's Range trip 1: I shot 3 rd sets at 90 to 94 grains over my old olher 35 set at 10 feet from the barrel. 94 gr : High-3063fps Low-3028fps ES-35 Avg-3051 and SD-20. 91 gr best accuracy: High-2920fps Low-2912fps ES-8 Avg-2916 and SD-4 Range Trip 2: I went back to the range with loads 90.6 to 91.6 grains to find best load in the 91 grain load range: 91.2 grains resulted in a .3 in center to center group at 100. I shot 3 at 95grs that I had left from the first round but no chono. Two went in same hole (literally) the third was up and over by almost 1 inch at a 100. I may have pulled it. Issues: Best accuracy so far is the 91.2 grains, but, I am only getting 2930 +/ with the load. I will play with primers and seating length, but, the accuracy is decent and the SD and ED are great. (Of course, I can't hunt this bullet). The 94 gr load chono'd 3063 high and 3028 low with no pressure signs. The 95 gr load had no pressure signs but I didn't have my chrono when I shot it. If I extrapolate from my 94 grain to the 95 grain, it should be averaging at least 3080. I still have no pressure signs. How fast are people pushing the 200 gr bullets? If I read pressure signs, I can go up from here, but, I am already at the MAX velocities that I find for the 200 gr. Anybody making 3200 with a 200 gr? Thanks rc [/QUOTE]
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300 RUM with 200gr MKS range results
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