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
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
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