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The best of the 6mm's for Long Range

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Unread 12-31-2007, 05:46 AM
Silver Member
Join Date: Jun 2006
Location: Memphis, TN. Soon to be Casper, WY.
Posts: 494
Your 240 WBY, if you can get it to shoot well, (I said that because mine would never shoot less than 1.5 moa) would be the fastest factory 6mm and is comparable to the 6mm-284. Unless you want to get up into the exotic 6mm wildcats like those based on the 300WM case, the 240 WBY, 6mm-284 6mm Rem AI, and 243 AI would be your best bet. All would need a fast twist barrel in order to take advantage of the heavier bullets for best long range performance.
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Unread 12-31-2007, 09:50 AM
Bronze Member
Join Date: Dec 2002
Location: Central Va.
Posts: 53
I built a 243 Ackley Improved in a table gun for long range groundhoggin'. I built it on a Remington 788 bedded into a BR stock Topped w/ a Leupy 18-40 50 mm side focus. Specs: Shilen Barrel, 10 twist, 28.5 " long. Cleaned up neck. I'm shooting the 70 grain Sierra Blitzkings at 3850 fps. I got into the 500 yard club with this rig and have made shots out to 880 yards with this rig. This is about as far (range) as I have access to shoot. So this fits my needs fine... my buddy shoots the same bullet outta his 6 BR and it is very accurate, but does loose steam at about 475-500 yards on groundhogs. My 243AI is flat shooting and I thoroughly enjoy it...when it was new it would consistantly shoot .75" at 325 yards... may have been better if in the hands of a more competent shooter...hehehehe I wouldn't hesitate building another one.
Hoggin' Heaven'... That's where they are when I'm done!

Last edited by Sam In Va; 01-02-2008 at 06:02 AM.
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Unread 12-31-2007, 12:17 PM
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Join Date: Nov 2003
Location: crosscreek P.A.
Posts: 11
I can vouch for the reputation of the standard 6mm Remington. I've been using a Remington 700 VL chambered in 6mm Remington for 8 year's now and every summer I'm able to make clean, one shot kill's on groundhog's from 600yds, out to just a peanut over 800yds, providing the condition's are right.
There are several reason's why I personally like this cartridge. it is from my estimate inexpensive and, easy in regard's to load development.
The recoil is'nt harsh enough to prevent yourself from being able to quickly get back on target in the event that you don't have a companion spotting your shot. And finally, the trajectory may not be that of a laser beam however, with my load using 80gr nosler ballistic tip's with a muzzle velocity of 3538fps, it doe's shoot pretty flat. at this velocity, the the 80gr nosler has 362lbs of retained energy left at 1000yds, enough to dispatch a groundhog or praire dog. There are alot of .243 based cartridges to choose from. as far as wildcat's are concerned, the 6mm Remington Ackley improved is hard to beat,
the 6mm/.284 winchester can be tempermental to load for. for myself, easy has alway's been best, and that's why I enjoy the 6mm Remington so much.

Good Luck With Whatever You Choose,

D.D.Miller 2ND
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Unread 01-04-2008, 08:12 AM
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Join Date: Jun 2007
Location: PUEBLO, CO, USA
Posts: 1,135
I would think the regular old forgotten 6mm Rem would do all that.

NRA Life Member
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Unread 01-15-2008, 03:19 PM
Bronze Member
Join Date: Nov 2007
Posts: 51
i am in the process of building a 243ai on a rem. action. I talked to a guy from shilen who has been chambering rifles for 18 years i think, and he said that if he had to choose he would go with a plain jane .243 win. Don't really know how much this says for the guy, cuz he may not be a nut like some of us. If your gonna build on a short action go with the 243win or 243ai. Medium to long 6mm, 6mmai, or 6mm-284. The fact is there are so many that are just a hair better than others and it don't make pot what u shoot as long as you can hit the target. The 243win is already considered a barrel burnner and the amount of powder some others take to drive the bullet 100-300fps faster too me is unrealistic. Also i don't like long barrels 24" is plenty for anything out to 500yrds. The more powder u add seems like the longer the barrel has to be, but when shooting 600yrds or more i deffinetly see point.
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Unread 01-16-2008, 02:24 PM
Silver Member
Join Date: Dec 2007
Location: Youngsville, NC
Posts: 434
Best 6mms.

I suggest you look at the 6mmBRX and 6mmDasher. With 1:8 barrel. Both nail drivers out to 1000 yards and barrel life is twice that of a .243 or 6mmRemington. The cost of shooting is also 1/3 less.

A/k/A Nat Lambeth
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Unread 01-20-2008, 08:24 AM
Junior Member
Join Date: Jan 2008
Location: Baltimore, MD
Posts: 25

I don't mean to do a hijack here but what is the difference between the BRX and the Dasher? And also what is involved in forming the brass? Neck expanding and creating a false shoulder? Which one gives the best velocity or does one have a benefit over the other?
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