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long rainge hunting cartridges book
@ 12:20 pm (GMT) |
robert meiklehi Nathan just got my book and spent the hole morning reading it. think it was posted by magnum post it got hear very very fast. ok hear is what I gathered you like the 7mm rem mag and love a max heads. now I have one thing to ask why use none magnum primers in the 7rem mag I was told never use none magnum primers in a magnum gun. as it not a good mix your thoughts on this please. ps realy liked the book very informative and do you have eney good coal settings for the 7mag in a Remington police model thanks robert |
Replies
@ 03:41 pm (GMT) |
Nathan FosterRe: long rainge hunting cartridges bookHi Robert, the point of discussing primers was to suggest that changing primers could be used as a means to manipulate burn rates and also manipulate ES. There is room for experimentation both ways. But- if for example a hunter is using a double base spherical powder such as US 869, it pays to use a magnum primer.The Federal 215 magnum primer was designed for the largest Weatherby cartridges burning up to 120 grains powder. This is nearly double the charge used in the 7mm Rem Mag. I don't know where the "you have to" use a magnum primer remark would have come from regarding the 7mm Rem Mag. Perhaps it was simply extra caution in light of ball powders. Examples of altering performance: 26" barrel, H1000 / 2217 powder- Fed 210 primer to slow burn rate slighty. 26" barrel, Retumbo / 2225 powder- Fed 215 Mag primer to speed burn rate slightly and manipulate ES. 22-24" barrel, H1000 / 2217 powder- Federal 215 Mag primer to speed burn rate. 22-24" barrel, H4831sc / 2213sc powder, federal 210 primer to manipulate and keep throat cooler. Plenty of room for experimentation. You'll need to work out the max COAL for your individual rifle Robert, then seat for about .2mm / 10 thou jump. This will most likely have you at around 86.8mm or 3.417" with the 162gr A-Max but its hard to say. Play it safe and do the measurements rather than using this info. |
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@ 05:24 pm (GMT) |
robert meikleRe: long rainge hunting cartridges bookthanks Nathan gun shop told me use mag primers when I purchased the gun and have done that. powder is h1000 rem mag was is a new gun for me. as there is not a lot of them in the uk . hence so many questions as i use this gun from fox to red deer want to get the best from it before barrel is done. Remington 700 worked the lugs bedding ior weaver base leupold rings sightron scope and t8 moderator rifle basicks trigger amax162g hoping to go the hole way with this set up thanks for your responce |
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@ 07:25 pm (GMT) |
robert meikleRe: long rainge hunting cartridges bookto lands in my gun Nathan its 3.427 so set at 3.407 20 off lands do amax like to be closer thanks robert |
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@ 11:51 pm (GMT) |
Nathan FosterRe: long rainge hunting cartridges bookOK, yours is normal spec, good to hear.Yes, I do like to start a bit closer but if you have already made up loads, not to worry. See how they go. |
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@ 12:41 pm (GMT) |
robert meikleRe: long rainge hunting cartridges bookok thanks nathan |
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