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  #1  
Old 03-11-2006, 09:08 AM
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6MM Rem VS. 243 Win.


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I'll be doin' some varmint and target shootin out to 300 yds or so (I've actually never shot farthER...YET ).

Does the 6mm Remington really have an accuraccy advantage? I've heard many say it, but I would think that it would have been more popular. If there is little to no difference the .243 clearly wins due to easy to find brass. I'm a reloader.

What y'all think? Experiences? Please share

*Please make recoomendations or share experiences regarding the two cartridges mentioned above only. Please do not do this: "Oh, if you want to shoot varmit get a 22-250." Thank you.

Jim
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  #2  
Old 03-11-2006, 10:33 AM
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One is about as accurate as the other. I prefer the .243 also. The .243 I had out shot the 6mm, but it can go both ways.

Which will you do more, target or varmint shooting? If its varmint shooting then I would recommend a different caliber for those ranges and beyond. I would use the 22-250. Much flatter shooting for long range. Also better accuracy than the .243. If you will be shooting where the wind will always be a factor, then the .243 with about an 85 grain bullet would win out. It will drop quite a bit out past 300 yards though. The 22-250 still holds up pretty well.
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  #3  
Old 03-11-2006, 11:18 AM
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If you're only shooting to 300 yds there's no accuracy advantage. The only reason to get a 6mm is the flatter trajectory. I say a 243 is easily set on varmints to 800yds.
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  #4  
Old 03-11-2006, 01:03 PM
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The 6mm Remington is based on the 7 x 57 case I believe so offers more case capacity so you can get slightly higher velocities. How much and if it'll be that big of an advantage in real world applications, I don't know, probably not a whole lot. I would think the 243 would edge it out in accuracy but that can be relative and I'm sure you can get more than adequate accuracy out of the 6mm. May want to check some of your reloading manuals and see how much of difference there is in the loadings and decide if it's worth it to you.
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Old 03-11-2006, 01:12 PM
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I have a 6mm. and I am pleased with it.
I would have bought the rifle just as fast had it been chambered in .243. I liked the rifle and the bore diameter.
I have always hand loaded for it.
Cheezywan
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  #6  
Old 03-11-2006, 01:33 PM
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As pointed out, if you're a reloader ammo for a 6mm Rem is no big deal as you can simply neck down the 7x57 Mauser case (easily obtainable) and have all the ammo you want.

The several 6mm's I've had acquaintance with at the local gunrange were all pretty accurate. The standard .243 Win is also accurate.

I shoot a 6mm/284 and am well satisfied with the accuracy of the heavy for caliber, 100 and 105 gr bullets used for hunting purposes.
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  #7  
Old 03-11-2006, 04:24 PM
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I've used both cartridges for varmint hunting. If one has an accuracy advantage over the other, I can't tell it.
Any accuracy advantage is going to be from a better barrel on one than the other, not the chambering, I think.
The 6mm has a slight speed advantage, if both cartridges are loaded to the same pressure. But, frankly, you aren't likely to be able to tell in the field.
If you were buying factory ammo, I'd lean towards the 243, because ammo is more common. As a handloader, that doesn't matter- brass is easily available for both.
Flip a coin, they're both outstanding varmint rounds.
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  #8  
Old 03-11-2006, 06:51 PM
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I don't think the cartridge will make as much accuracy difference as the individual rifle.

The 6mm develops more consistent pressures and is reputed to be more flexible when the ballistic labs develop loads. The .243 is known to have wider pressure swings. Using published data, you will probably never know the difference.

I've always had a soft spot for the 6mm because it was my dad's only centerfire, and was the first centerfire I ever shot or owned. That said, I wouldn't really be opposed to a .243, either. I've owned 5 of them over the years, and all were accurate. I don't think you can go wrong with either.
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  #9  
Old 03-11-2006, 07:17 PM
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heres my 2 cts. worth my first rifle was a ruger m77 in 6mm rem. reloaded it with 75 80 85 90 100 grs and killed every thing you legally can kill with it.brass is easy to come by and out performs the 243 win.but not enough to even argue about.my two boys have 243 winchesters and they continue the tradition.cant go wrong with either but i love the old 244.
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  #10  
Old 03-15-2006, 05:12 PM
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I have both the .243 Win. and the 6mm Rem. and find their's little actual difference in their accuracy. The major advantage to the 6mm Rem. is the longer neck, but that's only if you reload. I like both. Best wishes.

Cal - Montreal
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  #11  
Old 03-15-2006, 05:41 PM
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fond of both but prefer the 6mm. also agree with calsibley about the longer neck. whizzum
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  #12  
Old 03-16-2006, 08:32 AM
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Though I read the same thing about the 6mm vs .243 win way back when a whole bunch of gun writers said the 30-30 win was marginal on deer but the 7.62X39 in a ruger ranch rifle was very good for deer. The longer neck be an advantage if you use heavy boat tailed bullets, I don't know I bought a .243 anyway and loaded it to the best of my ability, back then my ablility translated to a shot group of .009 at 100yds if it gets better with a 6mm rem maybe I should have bought one of them. Bottom line buy the .243 easier to get brass, ie .308, 7mm/08 etc. The 6mm rem can be made to shoot very well some of the guys I shot with in competition believed the gun rag scribes and bought them, in my observations a very accurate round if you do your part. Either will do. One will cost more for supplies.
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