The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Rifles Medium Bore Rifles 7mmRemMag barrel life??Go | New | Find | Notify | Tools | Reply | |
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| One of Us |
The 7mm thread got me to wondering about barrel life..how long should a well cared for barrel last? I have approx 400 rounds through mine, and it still shoots inside an inch at 100yds all day long. I clean it after every 20 rounds or so, what do you think? | ||
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If you don't overheat the barrel or use improper cleaning equipment or techniques,the accurate life the the barrel should easily exceed 2000 to 2500 rounds. | |||
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I had a 7MM RM for ten years, and I shot it a lot. Handloads mainly. It was begining to loose some accuracy just as someone said "Hey, let's make an 8MM RM" so I went with that. I will say that I wish I had never sold the 7MM RM, had rebarreled it. More for personal reasons than anything. Sacred cows make the best burgers. Good Shooting! | |||
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Right on!!!!...actually I'd guess the barrel life to exceed 4,000 rounds....and I mean with acceptable hunting accuracy. Thereare documented cases of the .220 Swift with over 5,000 rounds thru it and still at .5 MOA. /////////////////////////////////////////////////////////////////////////// "Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy, its inherent virtue is the equal sharing of misery." Winston Churchill | |||
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Does bullet weight have anything to do with barrel life,i shoot alot of 115gr speer and 120 Hornady V-max in my 7MM RM "Never in the field of human conflict was so much owed by so many to so few." Sir Winston Churchill | |||
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doing most of the common sence things like 1. keeping the mv around 2900-3000 2. cleaning, using proper procedure and materials 3. not overheating the barrel while at the range 4. not loading to max. and above. simple precaution like these should bring barrel life to 8000 rounds plus or minus. | |||
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Loading the 7mmremmag to above 3000fps does by no means show a lack of common sense.140 gr loads attaining 3200fps can still be below design pressure so they are still sensible loads.If you are content to attain 2900fps to 3000fps you would be better off with a 280rem. | |||
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The more powder you run down the barrel, the more heat & the faster you are going to wear it out. If you are using it as a varminter w/ 115gr bullets @ 3400fps, it is going to errode the throat faster than running 160gr down the tube (been there done that). LIFE IS NOT A SPECTATOR'S SPORT! | |||
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stubble it shows a lack of common sense to run high mv's if you are trying to conserve barrel life | |||
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If you are so concerned about barrel life,you would be far better served to go with a smaller capacity case than the 7mmremmag.A 280rem or better yet a 7mm-08 would provide longer barrel life.On the other hand if you want the performance of the 7mmremmag,be prepared to live with the fact that barrel life will be shorter.There is no free lunch. | |||
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Hello; I had this discussion With a well known expert gunsmith a while ago and he confirmed what Stubblejumper posted. If you say it real quick, it doesn't sound like a lot, but it probably represents more than a life time, to the average hunter. Grizz Indeed, no human being has yet lived under conditions which, considering the prevailing climates of the past, can be regarded as normal. John E Pfeiffer, The Emergence of Man Those who can't skin, can hold a leg. Abraham Lincoln Only one war at a time. Abe Again. | |||
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I have to agree with stubblejumper, you might look into another cartridge. Especially if you're using it mainly for varminting, a .223 or .22-250 (even a .243 or .25-06) would be more suitable for varmints even at long ranges and would be a heck of a lot cheaper than shooting a 7mm, even if you're reloading. Having a 7RM myself, I know. Recently got a .22-250 for that reason. 7RM does mainly long-distance target work now w/ 162 gr. A-max's @ a conservative (but incredibly accurate) 2750 fps. Tim People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf. George Orwell | |||
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It took about 1100 rounds, about half of them near max hunting loads with light bullets, before my factory Savage barrel would not stay under 1". FWIW, Dutch. Life's too short to hunt with an ugly dog. | |||
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One problem with the 7MM RM is that it rapidly becomes THE gun you take everwhere for everything. As a result, it gets high usage. I don't know that it wears out that much faster (I'm sure it could depending on what you shoot) but it gets used more, at least in my case. In this case, "faster" equates to number of rounds fired. Between varmint and targets, you (I) use a lot of rounds outside of hunting. Sacred cows make the best burgers. Good Shooting! | |||
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Which bring up the question. What's the best method for cleaning the bore? Is there any way to cool off the barrel while at the range, without having to wait. the chef | |||
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As far as cleaning, Wipe-out, without a question in my mind. As far as cooling, in the winter a hand full of snow rubbed up and down the barrel works wonders. In summer, a baggie with crushed ice works pretty well. I give it a minute or two after the treatment to let the cold and heat even out throughout the barrel. HTH, Dutch. Life's too short to hunt with an ugly dog. | |||
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I bring along about five guns. Some of them are all set and others in progress. I fire two or three shots and then put that rifle aside and take the next one. I write down the results from each. If you don't want to shoot that many rifles a muzzleloader spaces the time and so does shooting a pistol. Join the NRA | |||
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A damp rag or towel over the barrel works wonders to cool it down in a short time. | |||
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Very well stated Mr Jumper..... /////////////////////////////////////////////////////////////////////////// "Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy, its inherent virtue is the equal sharing of misery." Winston Churchill | |||
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I've had my Remingtoin 700BDL for about 12 years, and it still shoots sub 1" groups with most loads. I take it to the range about 5 times a year and generally put about 20 rounds through it each visit so that would be about 1200 rounds thus far plus I've fired another 50 shots while hunting. These are all estimates of course. My formula for letting the barrel cool is I simply wait it out. Go for a smoke, take a whiz, drink a cola, whatever it takes. Agreed, it is a pain in the old wazoo. I reach around and grab the barrel about 2" in front of the action after each shot. If I can't leave mt hand there comfortably I wait, and wait. Best wishes. Cal - Montreal Cal Sibley | |||
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Cal, that sounds like a good plan to me. It is difficult to do while under attack from rabbits, ground pigs, etc.  Sacred cows make the best burgers. Good Shooting! | |||
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I have one that already has 3000 rounds through it and it will shoot five in .675 with 175 Noslers and RL22. I think 4-5000 rounds is reasonable life expectancy. Mine is almost thirty years old now. A shot not taken is always a miss | |||
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I've wretled with the cooling question myself. To avoid waiting so much I shoot several guns in turn. Usually including a .22 which seems to help me relax a resist flinching. I also fidjet and complain a lot but it doesn't seem to speed the process. Doesn't cooling with ice change the aimpoint? Looks like it would. I know in artic weather the sun on an unsleved tank gun changes the aim point. Has anyone tried one of those little battery powered fans I used to see advertised in shooting magazines? Sei wach! | |||
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I Just bought my first 7 mm rem mag in a rem 700 ss dm. it's beautifull rifel. I'm sending it to Weaver rifles to have to have Kevin Weaver make a change that should be done on all 7mm rem mag. that he is going to rebarrel it to usefull Cal. ie 257wby. | |||
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Dr. B, I sincerely hope you enjoy your 257 Wby. I really don't understand the reasoning behind re-barreling the rifle, because there are significant limits to the variety of .257" bullets available. The large weight variation in .284" bullets make the Big 7 capable of things the .257 Wby isn't. I think you took a big step back, but you know what they say about opinions... | |||
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Dr B does not care for the 7mm . he could have saved some money and bought a 25-06 and rechambered it. as for barrel life I have one of the first ones out with the stainless barrel on the rem 700 made in 1963 it still shoots 1" groups and you might need that for prairie dogs but deer and elk dont need that accurady.By the way between me 6 brothers and my father it has around 4000 max loads thru it . Dont worry about the barrel life on it unless you shoot benchrest and are concerned about its accuracy. If it cant be Grown it has to be Mined! Devoted member of Newmont mining company Underground Mine rescue team. Carlin East,Deep Star ,Leeville,Deep Post ,Chukar and now Exodus Where next? Pete Bajo to train newbies on long hole stoping and proper blasting techniques. Back to Exodus mine again learning teaching and operating autonomous loaders in the underground. Bringing everyday life to most individuals 8' at a time! | |||
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I have to agree.While the 257wby is a great deer cartridge it certainly is not a wise choice for an elk or moose rifle.Under perfect conditions it does the job ,but the 7mmremmag is a much better choice for larger game. | |||
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