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.22 RF rifle | |||
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Moderator |
The IMR powders were developed specifically to reduce muzzle flash. Try them in your rifles. Also, some folks recommend using a slightly faster powder so that it burns in the barrel instead of outside it. George ------------------ | |||
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one of us |
I'm going by the Quickload prediction of % burnt in the barrel, and the following powders are 99% or better: IMR 4198 I don't know if there is a correlation with muzzle flash, but it seems reasonable that there would be. In general, heavier bullets seem to result in higher % of propellant burnt. HTH, Dutch. [This message has been edited by Dutch (edited 10-10-2001).] | |||
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this would make an interresting study...I know BL-C2 is the worst.... ------------------ | |||
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one of us |
Ray, as far as % burnt is concerned, yes and no. In the PPC, it runs 97% with 70 gr bullets, (93% with 55 gr bullets). However, Vectan sp7 comes in at 94%, pretty close to the slower numbers such as 4064, Varget, etc. However, 760 comes in at 87%. (!). It gets pretty interesting when you increase bullet weight. Imr 3031 goes from 96% with 55 gr bullets to 99.9% with 70 gr. bullets. Don't ask me what it all means. ;-). Dutch. | |||
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one of us |
Avoid ball and double base powders and go for the fastest single base powders you can get data for. With a 18" barrelled 243 I can get no flash visible at dusk with H322 and 85gr bullets, from memory this is around 32gr. Never chronoed but accurate and good enough. | |||
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