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Rifles, Reloading, Optics, Equipment
Reloading
Guesses on muzzle velocity, 300 RUM
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<blockquote data-quote="TyIdaho" data-source="post: 337238" data-attributes="member: 14736"><p>"...I don't know what pressures the barrel can withstand, the rifle is the african plains rifle from the remington custom shop, and the barrel is 26" long, if that helps."</p><p></p><p>And you don't want to find out by pushing it too far!!</p><p></p><p>"...I can step it down some, but how are there people claiming to get 3400 + FPS from this bullet using different powders, when I'm maxed out at 3100? Longer barrels maybe?"</p><p></p><p>Every gun is different, usually pretty close, but still different and thus will shoot at different speeds. Because of this (in part) you can not depend on a chronograph to tell you when you are at max pressure. You need to examine your fired cases very carefully, if you use a hand primer seater like the Lee, you will notice less effort to seat the primers when loading a case that was shot with fairly high pressures. Don't forget that you will usually, not always, but usually find your most accurate load is <u><strong>not</strong></u> the fastest. Bullet placement is much more important than an extra 50 to 100 fps that you might get by pushing your gun to the limit. Also your brass will last much longer if you back it down some, and as you know, brass aint cheap. </p><p></p><p>Your cartridge started out life at what some would consider (me included) to be over-bore capacity, which tends to make them less <u><strong>inherently</strong></u> accurate and not as forgiving at close to max pressure (notice how accurate most .308 Win. Rifles are, same bore less capacity = more efficient). That doesn't mean it won't be accurate, some guy's are shooting really good with this round, but <u>you should be very careful</u>, because a round that is over-bore capacity may tend to spike pressures near max rather than climb up consistently and predictably.</p><p></p><p>You are ultimately the judge, but I vote for less pressure, more accuracy and longer brass life.</p><p></p><p>Good luck and keep us posted!</p></blockquote><p></p>
[QUOTE="TyIdaho, post: 337238, member: 14736"] "...I don't know what pressures the barrel can withstand, the rifle is the african plains rifle from the remington custom shop, and the barrel is 26" long, if that helps." And you don't want to find out by pushing it too far!! "...I can step it down some, but how are there people claiming to get 3400 + FPS from this bullet using different powders, when I'm maxed out at 3100? Longer barrels maybe?" Every gun is different, usually pretty close, but still different and thus will shoot at different speeds. Because of this (in part) you can not depend on a chronograph to tell you when you are at max pressure. You need to examine your fired cases very carefully, if you use a hand primer seater like the Lee, you will notice less effort to seat the primers when loading a case that was shot with fairly high pressures. Don't forget that you will usually, not always, but usually find your most accurate load is [U][B]not[/B][/U] the fastest. Bullet placement is much more important than an extra 50 to 100 fps that you might get by pushing your gun to the limit. Also your brass will last much longer if you back it down some, and as you know, brass aint cheap. Your cartridge started out life at what some would consider (me included) to be over-bore capacity, which tends to make them less [U][B]inherently[/B][/U] accurate and not as forgiving at close to max pressure (notice how accurate most .308 Win. Rifles are, same bore less capacity = more efficient). That doesn't mean it won't be accurate, some guy's are shooting really good with this round, but [U]you should be very careful[/U], because a round that is over-bore capacity may tend to spike pressures near max rather than climb up consistently and predictably. You are ultimately the judge, but I vote for less pressure, more accuracy and longer brass life. Good luck and keep us posted! [/QUOTE]
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Guesses on muzzle velocity, 300 RUM
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