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Jeffeosso, Interesting stuff. All that being said how is it possible to shoot 120# for a hundred rounds or more and not do physical damage to ones body? whether it's detached retina or inner ear issues. I shoot a 10# 500NE and I'm good for 6 or 8. 470 in a 11# k gun a box or so, my 10# 450-400 3-1/4 no real limit. I am not a tough guy but also don't consider myself recoil sensitive either. I just am baffled by the ballistics antics of some of the 600 guys around here. Some of these calculations deliver 50BMG type numbers in handheld rifles. Steve Formerly "Nganga" | |||
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Steve, i will be labeled a heretic, AGAIN .. doubles kick WAY more than boltguns, aabe. for example, my 9# 470 AR, 500gr at 2150, is PLEASANT to shoot 5-10 rounds vs the same number in a 470 NE loaded the same. a 500 ne kicks FAR more than a 500 AR, loaded the same .. THREE pounds less on the AR the 550 express.. same energy as a 577 NE .. in a 10.75# gun, 116 ft-lbs (700gr at 2130) vs a 13.5# 577 ne (the 577 was only 1/2 inch shooter lop, the guy built for was about my size) ... about the most 500 ar or 500 jeffe i've shot in one session is about 50.. about 40 with the 550 express .. about TEN with a 577 ne i am building a light 10,75x68... since i am having the chamber custom throated for hornady DGX at the crimp, i'll be able to get at least 2250 out of it ... matching 450/400 BOOK.. shouldn't be over 9# with scope i've strained my back .. bruised my middle finger... and when first starting my 500 jeffe.... headaches.. but it's been about 10 years since i got badly rattled.... 585 nyati? about 4 .. 600 OK? i don't think i am that tough! opinions vary band of bubbas and STC hunting Club Information on Ammoguide about the416AR, 458AR, 470AR, 500AR What is an AR round? Case Drawings 416-458-470AR and 500AR. 476AR, http://www.weaponsmith.com | |||
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I don't talk about things I don't know about. It's hard for me to believe that there are rifles that recoil with more than 100 lbs of energy. That's half the weight of a really big man, against one shoulder. But I've never fired anything larger than a .458. and I don't have much experience with one as I decided to buy the .416 instead. I'm still forced to ask, why? If I wanted half the punishment I'd take up Krav Maga again. Or hire a dominatrix. | |||
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My worse recoil nighmare happened 2 years ago with a new 500 Nitro sxs I was shooting for the first time. I set up the chronograph to get a base line on what the gun would shoot factory loaded ammo at and check regulation. As I said the gun was new and I had never shot it. I will also not mention the maker because they were horrified and fixed the gun as soon as I told them what it did. I sat down at the shooting bench with both barrels loaded and squeezed the rear trigger and the recoil was so great the rifle flew out of my hand that was holding the forearm bloodied my nose, gashed my second finger on the trigger guard and nearly knocked me off the bench. I did manage to hold onto the gun and not let it hit the ground. This was one huge boom like a single shot. I could also see one bullet hole just above the bulleye on the target at 50 yards. I had a 500 nitro a couple years before this gun and shot it quite a lot but didn't remember it kicking that hard. I though maybe I had become a sissy and just did remember how hard the 500 kicked. I then sat back down and gritted my teeth and prepared to shoot the front trigger. When I tried to gun would not go off. At that time I opened the action and discovered that both barrels had gone off at the same time. I then single loaded the rifle and shot a round through each barrel to check regulation which was excellent. With this being a new rifle I though maybe something was stuck so I loaded both barrels and sat down and shot the rifle again at which time it again doubled. I then took the rifle home and called the maker, who suggested the rifle should be shot, front trigger first, which I thought was crazy but I took the rifle back to the range and tried that and the rifle doubled again. By this time I had the worse headach I had ever had from shooting, a bloody nose and a real cut and pump knot on my second finger. My question is how much recoil energy do you think that rifle generated when it doubled. I know I felt bad the rest of the day. There was also two other shooters from Germany on the bench beside me when I shot the first double and the rifle flew out of my hand and bloddied my nose. The expressions on their faces were priceless! | |||
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You can't compare mass to energy. Lbs to ft lbs. Use the recoil #'s as a way to compare recoil to bigger guns. the recoil calcs work well for this. As to why would we do it. Because we can. WOODY Everyone is allowed an opinion, even if its wrong. | |||
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I'd suggest you stick under 458 and below and stay well away from anything like the 530 Woodleigh or 550 as mentioned above. I am not that recoil sensitive BUT I shot the 530 Woodleigh twice - and they were at the upper end of the load scale but they were brutal. I actually preferred a 600 Nitro to the 530 (which is buolt on a 505 Gibbs case blown out a bit). . | |||
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That sounds like good advice. I'll just say, "to each their own." | |||
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nope.. i'm a texan, and barely pass for middle weight around here... why? why become a 3rd dan? because! how about a dominatrix that dabbles in krav maga .. i can arrange a meeting, for a fee, of course opinions vary band of bubbas and STC hunting Club Information on Ammoguide about the416AR, 458AR, 470AR, 500AR What is an AR round? Case Drawings 416-458-470AR and 500AR. 476AR, http://www.weaponsmith.com | |||
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That must have been somewhere around 160 to 180 ft-lbs of recoil. Ouch! For comparisons sake the recoil calculator puts my .470 double at 73 ft-lbs which is enough for me, pleasantly shootable and gets the job done but not painful or excessive. | |||
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I'm not there yet. But if I get a wild hair to to try out anything bigger than a .585 Nyati, you can hook me up with that dominatrix to knock some sense back into me. | |||
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BTW - It wasn't a criticism - when I first started shooting, my Win Mod 70 in 30.06 used to kick the shit out of me on the bench. practice and a bit of extra bulk helped to tame it before moving on to bigger things. I doubt anybody could fire 100 rounds from a 500, 530, 550 or 600 and still be standing without any adverse effects - or just still standing !!! LOL. . | |||
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I didn't take it as a criticism. Although constructive criticism is always welcome. | |||
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My impression is that a double produces not two times the recoil energy, but four times. The bullet weight is doubled, so the recoil velocity should be doubled, but recoil energy is a function of the square of the velocity, and the square of two is four. My .458 Winchester Magnum doubled on me once, but I was shooting off hand and except for an exceptionally loud noise, I didn't really notice anything untoword. I did have to take a step backwards and my feet got tangled up, causing me to sit down suddenly, which was incidentally, the same reaction I had to shooting my rimless .577. The two bullet holes from the .458 were about a half inch apart, so it was a true double, not a sympathetic reaction or an accidental trigger pull. Incidentally, in my opinion recoil velocity, rather than recoil energy, is the real problem. Anything over 20 fps recoil velocity is going to give real problems. I never shoot full loads in my big guns, except chronographing loads or sighting in. All my practice rounds are with lighter bullets and reduced powder charges. I never notice the recoil shooting at game. | |||
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This is my 505 Gibbs Load; Bullet weight in grains 600 Velocity in fps 2270 Powder charge in grains 130 Weight of firearm in lbs 11 Recoil Impulse in (lbs sec) 8.35 Velocity of recoiling firearm (fps) 24.4 Free recoil energy in (ft/lbs) 102.04 It is a big number but manageable once you learn the technique for shooting big bores. In the field shooting game you don't even notice it. In comparison my 416 Rigby is easy to shoot, its load is as follows:- Bullet weight in grains 410 Velocity in fps 2455 Powder charge in grains 96 Weight of firearm in lbs 10.25 Recoil Impulse in (lbs sec) 6.17 Velocity of recoiling firearm (fps) 19.38 Free recoil energy in (ft/lbs) 59.78 A 458 Win in a 9 lb CZ seems similar to my 416 Rigby, but not quite as sharp, but is mild in comparison to the 505 Gibbs. Felt recoil is very much dependent on stock design as well. The only thing that puzzles me is that people say the 378 Weatherby is the worst kicking rifle they have shot, but it's numbers are typically less than my 416 Rigby (using the same calculator) Bullet weight in grains 300 Velocity in fps 2950 Powder charge in grains 111 Weight of firearm in lbs 10 Recoil Impulse in (lbs sec) 5.9 Velocity of recoiling firearm (fps) 18.9 Free recoil energy in (ft/lbs) 55.97 I don't find the 416 at all unpleasant to shoot, and yet people say the 378 is the worst (I haven't shot one yet), so there must be something more behind those numbers!! | |||
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Steve, I'm sorry but I don't understand the mechanism by which recoil from a shoulder mounted firearm can cause either a detached retina or inner ear injury leading to balance problems. As far as the eye - cataract surgery, direct eye trauma, diabetic retinopathy and a few other eye pathologies - with these conditions sure just about anything will contribute including sneezing. As far as the inner ear (at least the parts that contribute to balance and vertigo) - loud noises (music, gunfire, jackhammer, etc.), poking it with a pencil); ear, brain and nose surgery and a few inner ear or nerve pathologies as well as some poorly understood diseases - sure. So I'm sorry but I can't seem to find an evidence-based relationship between recoil of a shoulder mounted firearm and either of those two problems. Thanks, Paul NRA Lifer; DSC Lifer; SCI member; DRSS; AR member since November 9 2003 Don't Save the best for last, the smile for later or the "Thanks" for tomorow | |||
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Paul, well then you must be right...... response seems somewhat familiar. Supporting data: I am (was) a director on the Phoenix chapter SCI. Several past members who are pals of mine shoot pigeons around the world. TWO have had said injury from shooting full pigeon loads in a 12 guage for extended periods. I don't do that with them so I have not seen it, but I tend to believe these guys. Paul, please understand, I am NOT CALLING YOU OUT on this. I just can't see how a human can take getting hit in the head/shoulder/jaw with a lead pipe for that long and not get punchy. I race bicycles. I love what Lance Armstrong did: 7 in a row? yahoo!!!! But he beat all his doping competitors clean? How? same doubt here. Regards, Steve Formerly "Nganga" | |||
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Nanga, I don't know anybody that shoots 100 rounds of really big bore at a setting without a Lead Sled or some other means of mitigating recoil. I also think folks that suffer retina issues while shooting had or have an underlying pathology that causes the injury and shooting only exacerbates it. Otherwise, every boxer and wannabe boxer would have been blinded well before the age of 25. As for inner ear, it had been found that the high frequency vibrations of the old M16 A2 style buttstocks transfer to the bones of the skull and inner ear at a strength that caused inner ear deterioration at a rate similar to shooting without ear protection. Its likely that a competitor shooting that many shotgun rounds could suffer something similar if they happen to mount the gun in a manner that allows that transfer of vibration. "Experience" is the only class you take where the exam comes before the lesson. | |||
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Steve, I raced against Lance back in the 80s and he whipped my ass!!! That doesn't say much about either of us but I can add that at least back then, none of us thought he was doping. Only he and God know for certain on that subject. My comments about the eye and ear stuff - well, I have no reason to doubt what happened to your colleagues and actually it in no way contradicts what I stated earlier. Anyway, the list of "impossibilities" that have been proved wrong over the years is a very long list indeed. In my line of work, "always", "never" and "impossible" rarely have validity. Beer is on me when someday we get together. I'll warn you now that simply reading the label is enough to make me tipsy, though. NRA Lifer; DSC Lifer; SCI member; DRSS; AR member since November 9 2003 Don't Save the best for last, the smile for later or the "Thanks" for tomorow | |||
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Paul, I try to stay away from using absolutes, "always, never". If I did, regrets. Since, I have not seen the feat and I have no reason to believe you are less than honest, I'll take you up on that beer.....However....I drink the NA stuff. O'douls...dark to be specific. The world is a safer place and I'm still married. I quit drinking when I started racing 20 some odd years ago. Cheers my friend. Steve Formerly "Nganga" | |||
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Explains why my Doc's are usually wrong. | |||
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20 rounds offhand from my 500 Jeffery shooting 570g TSX's at 2400 fps offhand is still fun. More than that, the fun index begins to drop. Sometimes I'll shoot more than that, but I'm switching rifles in between every 5 rounds or so giving myself a break. I won't shoot it off the bench without my lead sled anymore, no reason to. Regards, Chuck "There's a saying in prize fighting, everyone's got a plan until they get hit" Michael Douglas "The Ghost And The Darkness" | |||
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Here is a table that I came across that lists many (not all loads or calibers) of the common calibers recoil energy. Cartridge (Wb@MV) Recoil energy .30-30 Win. (160 at 2400) 12.7 .308 Marlin Express (160 at 2660) 13.4 .30-06 Spfd. (180 at 2700) 20.3 .300 Win. Mag. (180 at 2960) 25.9 .338 Marlin Express (200 at 2400) 16.2 .375 H&H Mag. (270 at 2690) 36.1 .38-55 Win. (255 at 1415) 9.5 .444 Marlin (240 at 2400) 23.3 .444 Marlin (265 at 2200) 22.1 .45-70 (350 at 1900) 37.9 .450 Marlin (350 at 2000) 37.2 .458 Win. Mag. (500 at 2100) 62.3 .458 Lott (500 at 2300) 70.4 .460 Wby. Mag. (500 at 2600) 99.6 .470 N.E. (500 at 2150) 69.3 .50 BMG (647 at 2710) 70.0 | |||
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Years ago I read an article penned by Jeff Cooper in which he stated that big-bores, once sighted-in and otherwise prepped for hunting, should not be shot to any great extent as the recoil would eventually, and inevitably, cause damage to bedding, stocks, etc. He was adamant that once the shooter had totally familiarized himself with the gun, that it should be held in reserve for hunting. I believe he may even have mentioned a number of rounds to be considered a safe maximum to use for this purpose. IIRC he was talking low numbers, something in the range of a few hundred rounds. Is this a valid idea? And if it is, would this be referring to only the biggest boomers, .500 and up perhaps? I recently got my first .458 (Win model 70) and have put about 200 rounds through it so far. I'm assuming that my plan to shoot this gun a lot over the years is safe for the rifle. Comments? Reassurances? John | |||
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.510 500 Jeffery (570g at 2410) 93.0 Regards, Chuck "There's a saying in prize fighting, everyone's got a plan until they get hit" Michael Douglas "The Ghost And The Darkness" | |||
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Like an old carb'd V12 Ferrari, just look at it and start once a year? Naaah. If it's that fragile or temper-uh-mentile, I wouldn't wanna rely on it in a third world locale. | |||
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