| MLKeith |
10-07-2005 11:33 AM |
RE: 200-yard Performance: Attainable?
Relative to the Black Mag'3 vs. 777. I have shot a comparison of the two but the 777 was ffg which was a somewhat unfair comparison as the BM3 is really fffg at least in appearance. I got considerably higher velocity out of 100gr. BM3 vs. 100gr. ffg 777 with 300gr. bullets in Harvester sabots out of a stainless .50 Omega. The ascorbic acid powders like BM3, APP, and Goex Pinnacle seem to work better if the compression of the powder is firm and if the barrel length is long. Those powders light off a little slower than 777 and require more barrel length to develop maximum performance. Usually the heavier bullets help to develop the pressure required to make maximum velocity. With 100gr. volume BM3 and a 209 Winchester primerunder a 300gr. bullet I chronographed a three shot average of 2004fps at 7000ft. altitude out of my long barrel Omega. The recoil with BM3 seems to me to be more like black powder and somewhat easier to take than the sharp recoil of 777 which seems more like a smokeless sharp initial hit. I have seen comments to the contrary but this is what I experienced. 90gr. Black Mag'3 under 300gr. SST shot completely through medium sized cow elk at 90 yards (double lung shot no major bone).
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