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7MM Mag Change |
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SVT_Tactical
MODERATOR Chief Sackscratch Joined: December/17/2009 Location: NorthCackalacky Status: Offline Points: 31233 |
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Posted: April/22/2019 at 14:37 |
Long story short ended up with a Win 70 in 7mm rem mag that has throat erosion so bad it won't shoot for crap.... going to re-barrel and considering options.
Found this list online - Long actions with a bolt face .Dia of .540 +/-257 Weatherby 264 Win Mag 270 weatherby Mag 7mm Remington Mag 7mm Weatherby Mag 7 STW 7mm Remington Ultra Mag 300 H & H 300 Winchester Mag 300 Weatherby Mag 300 RUM 303 Brit 8mm Remington Mag 338 Winchester Mag 340 Weatherby Mag 338 RUM 375 H & H 375 Weatherby 375 RUM 416 Remington Mag 458 Winchester Mag 458 Lott Now that's probably not inclusive but good start to my pondering. . I've always said I wanted a rifle that started with a 4 so it got me pondering lol. Could the 7mag action really hold up to the 458 Lott pressures? or is there a special action needed?
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"Most folks are about as happy as they make their minds up to be" - Abraham Lincoln
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Rancid Coolaid
MODERATOR Joined: January/19/2005 Location: United States Status: Offline Points: 9318 |
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what is barrel length? Have you considered shortening the barrel and getting rid of the problem area?
Were it me, with that gun, I'd go 458WM or 338WM, but more for "want" than for "need." |
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Freedom is something you take.
Respect is something you earn. Equality is something you whine about not being given. |
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Peddler
Optics God Joined: July/04/2012 Location: Oswego,NY Status: Online Points: 13528 |
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How about getting real kinky and trying a 300 or 338 Sherman?
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When you are dead, you don't know you are dead.It is difficult only for others.
It is the same when you are stupid. |
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supertool73
Optics God Superstool Joined: January/03/2008 Status: Offline Points: 11814 |
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Would a .416 Rigby fit. I have always thought that would be a fun caliber to own.
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Lifetime warranty and excellent customer service don't mean a thing when your gun fails during a zombie attack.
"A Liberal is a person who will give away everything they don't own." |
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SVT_Tactical
MODERATOR Chief Sackscratch Joined: December/17/2009 Location: NorthCackalacky Status: Offline Points: 31233 |
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The 458 WM defiantly has cheaper ammo and may be a better fit for this action... don't know.... even a 375 H&H would be a killer round....
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"Most folks are about as happy as they make their minds up to be" - Abraham Lincoln
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SVT_Tactical
MODERATOR Chief Sackscratch Joined: December/17/2009 Location: NorthCackalacky Status: Offline Points: 31233 |
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Not sure, the 416 Remington did pop up too. which I know they are basically the same round but ammo cost seems cheaper on the Remington for some reason at midway.
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"Most folks are about as happy as they make their minds up to be" - Abraham Lincoln
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Peddler
Optics God Joined: July/04/2012 Location: Oswego,NY Status: Online Points: 13528 |
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your going to build something different and then are worried about ammo cost???
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When you are dead, you don't know you are dead.It is difficult only for others.
It is the same when you are stupid. |
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Kickboxer
MODERATOR Moderator Joined: February/13/2008 Status: Offline Points: 23679 |
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The action should be fine going up to .458 WinMag and the Lott actually creates less pressure than the WInMag. You should go all out and build a "whale rifle" in .460 Weatherby Magnum (.378 Weatherby Magnum necked up to .458 projectile). If I did not love my Champlin .378 Weatherby Magnum so much, I would have it converted to .460. Imagine... a .458 500 grain bullet pushed to 2700 + fps. Makes my hackles rise... I've shot a number of Lott rounds with 510 grain RNSP at 2400 fps... quite impressive. It's what I killed the tree with...
.460 Weaterby Magnum... it's a dream I have...
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Opinion,untempered by fact,is ignorance.
There are some who do not fear death... for they are more afraid of not really living |
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Tip69
Optics Master Extraordinaire Tip Stick Joined: September/27/2005 Location: Nebraska Status: Offline Points: 4155 |
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learning/teaching moment.... the throat is at the end of the barrel, near the muzzle? I always assumed it was by the chamber.
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take em!
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supertool73
Optics God Superstool Joined: January/03/2008 Status: Offline Points: 11814 |
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No. Its at the chamber. You cut off some at the chamber end and then rechamber and thread again. Which also makes it shorter.
Sometimes its called setting it back as well
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Lifetime warranty and excellent customer service don't mean a thing when your gun fails during a zombie attack.
"A Liberal is a person who will give away everything they don't own." |
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RifleDude
MODERATOR EVIL OPPRESSOR Joined: October/13/2006 Location: Texas Status: Offline Points: 16337 |
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First things first...what are you planning to use the rifle for? If you just want something different “just because” (which, by the way, I personally consider a perfectly valid reason for building/acquiring a new rifle)...you might stop and think about this for a bit. Your recent history has shown a pattern of impulse firearms purchases, only to end up trying to sell these purchases only a couple months later. Are you really sure you love the action and stock enough to justify the expense of rebarreling? If you don’t have a strong emotional connection to the basic rifle, then I would sell the whole thing and use the money toward something you really like. If you’re gonna go “semi custom,” why not just go the Full Monty and build a full custom rifle? You don’t have to get in a big hurry; just acquire the components over time and build something uniquely yours. It will be a fun project, you can make every part of it exactly as you want with no compromises, and you will be way more proud of the result.
If you’re just rebarreling a plain ole factory M70, you will never recoup the cost you have in it. The cost to rebarrel when all is said and done will likely be greater than the resale value of the rifle when finished. The only case where I personally see this as worthwhile is if the rifle has sentimental value - a gift from a family member for example - and you’re absolutely certain you will never sell it.
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Ted
Money can't buy happiness... but it's much more comfortable to cry in a Porsche than on a bicycle. |
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Scrumbag
Optics Master Extraordinaire Joined: October/22/2013 Location: London, UK Status: Offline Points: 4205 |
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375 H&H is longer than the Win Mag / Remington so your action might not be long enough
Scrummy
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Was sure I had a point when I started this post...
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budperm
Optics Retard show me your sheep!! Joined: January/01/2009 Location: Pennsylvania Status: Offline Points: 31710 |
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I'm thinking the 7 STW or 7mm Rem Mag.
He's married now with two rats a crawling. He has the inflicted pain part of his life well covered....
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"Peace is that brief glorious moment in history when everybody stands around reloading".
--Thomas Jefferson |
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Bigdaddy0381
MODERATOR Georgia peach Joined: February/27/2007 Location: Georgia Status: Offline Points: 13682 |
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28 Nosler
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P&Z Firearms , Pro gun cleanings and gun repair and wood refinishing.
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budperm
Optics Retard show me your sheep!! Joined: January/01/2009 Location: Pennsylvania Status: Offline Points: 31710 |
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That would work nicely too...
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"Peace is that brief glorious moment in history when everybody stands around reloading".
--Thomas Jefferson |
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Tip69
Optics Master Extraordinaire Tip Stick Joined: September/27/2005 Location: Nebraska Status: Offline Points: 4155 |
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Well said Ted..... well said indeed!!
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take em!
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SVT_Tactical
MODERATOR Chief Sackscratch Joined: December/17/2009 Location: NorthCackalacky Status: Offline Points: 31233 |
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Always the voice of reason........ but I also hate dumping a rifle I know doesn't shoot on anyone and not many people will pay much for a gun with that known issue.... so its damned if you do and damned if you don't kinda situation. Sure setting it back is cheaper but not sure if it shot well before or not.....
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"Most folks are about as happy as they make their minds up to be" - Abraham Lincoln
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RifleDude
MODERATOR EVIL OPPRESSOR Joined: October/13/2006 Location: Texas Status: Offline Points: 16337 |
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On the chambering question...unless you plan to make some trips to Africa or hunt brown bear, I wouldn’t chamber in the heavy thumpers. You won’t shoot it very often, it will be expensive to shoot, and there isn’t a real application/need for the “> .338” bore” cartridges anywhere on the continent. It pains me to say that as someone who enjoys owning way more guns than I can practically use, but it’s the truth.
A couple decades ago, the cartridge chosen and case capacity meant far more than it does today. Back then, you could either choose a tough bullet or a high BC bullet, but not both at the same time. Today, you no longer have to make those trade offs. Advances in bullet technology have made cartridge selection (within reason) almost irrelevant. Today, a typical mid-power “deer rifle” cartridge will drop anything in North America in its tracks as long as you steer the right bullet to the right place.
My advice: stick with something with either 6.5mm, 7mm, .30, or .338 bore diameter and forget the rest. Those are where you will find the greatest variety and best performing selection of bullets that will do it all. Anything else involves too many compromises. |
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Ted
Money can't buy happiness... but it's much more comfortable to cry in a Porsche than on a bicycle. |
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mike650
Optics God Joined: May/14/2006 Location: West of Rockies Status: Offline Points: 14569 |
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Winkle.
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“A hunt based only on trophies taken falls far short of what the ultimate goal should be.” – Fred Bear
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supertool73
Optics God Superstool Joined: January/03/2008 Status: Offline Points: 11814 |
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What about the 300 PRC?
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Lifetime warranty and excellent customer service don't mean a thing when your gun fails during a zombie attack.
"A Liberal is a person who will give away everything they don't own." |
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