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Which 6mm in long action Remington 700? Quality Brass is issue...

 
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  #50  
Old 12-21-2013, 04:44 PM
Edd Edd is offline
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Re: Which 6mm in long action Remington 700? Quality Brass is issue...

You are making this way too complicated.

With your donor action, there is no need to consider anything other than something based on an 06 size case.

Since you want Lapua brass and the only version they make is a 30-06, that part is done.

All you have to do is decide what diameter bullet you want.

Don't forget that a 338-06 is one of the most efficient cartridges on the planet.
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  #51  
Old 12-21-2013, 11:05 PM
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Re: Which 6mm in long action Remington 700? Quality Brass is issue...

Just go with a straight 6mm Rem ( .244 Rem) in that rifle. It will do all you expect a 6mm to do for you.
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  #52  
Old 12-22-2013, 11:46 AM
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Re: Which 6mm in long action Remington 700? Quality Brass is issue...

Quote:
Originally Posted by cdherman View Post
OK, I have been trying to read as much as possible about the 6mm-284. The Lapua brass very much attracts me.

But along the way, I've discovered a number of basic 6mm issues that trouble me:

For instance, the Berger 6mm 115 VLD Hunting bullet has a BC of .545 The .264 bullet in 130 gr has a BC of .552

Now, since I am concerned about terminal energy as well as trajectory, the 130gr 6.5mm slug has some superior features as well. Driving the 6mm 115 enough faster to overcome the superior BC of the 6mm 130, and added ft/lbs from weight seems a stretch.

I've not realty been able to narrow down just what sort of velocity one can get out of a 6mm-284 with the 115s, so that has hampered my comparison.

But at the end of the day, I have begun to wonder why not just stick with 6.5x284. Lapua brass, standardized cartridge, correct headstamp......

And the 6mm-284 pretty much HAS to burn barrels faster than the 6.5x284, which itself is noted to be hard on the barrels.....

Geeezzee .... I'm back to where I started. Chasing my tail....

But in all honestly, I think what I am discerning is that 6mm might be good long ranger caliber for bench rest, for metallic silhouettes, and varmint size game. But when you start drawing a line, at say 1000 ft/lbs of energy as a necessary attribute to kill an animal sized like a deer, then the 6.5mm is going to spank the 6mm. The 6mm has to be driven very fast to get a long way out there, with that kind of energy.

If I want a 6mm, I should recognize that its just not an optimal LONG RANGE cartridge FOR DEER, if that's what I want. Now, if I want to build a light kicking, fine shooting gun for deer out to 400 yards, then I should just go with .243 Win and be done....

Lets see if I can muddy the waters some. You're welcome.

Speed & BC:
The 6x284 can & will run 3500fps with 105-107 bullets, in the 3300-ish are with the 115 variety. Berger's 115 is not optimal, I believe the 105 Hybrid is at or near that BC. The 115grn DTAC runs a .585 BC, the 117 Matrix VLD is touted at just over that. Couple a near .600 bc at 3200-3300fps & you a whole different level of performance.

The 6.5x284 will run the 140's (.616 BC) at 2900-ish, I'm GUESSING the 130's up near 3100fps.

Both are crazy accurate & BOTH have 1000yd world records under their belt.

Barrel Life:
The 6x284 will in fact torch the throat faster than the 6.5. By how much is dependent upon how you use/abuse it.

Critters at Distance:
Even though, ballistically, the 6mm stomps the monkey snot out of the 6.5 at pretty much any distance as far as drop/drift are concerned; after the 800 yard or so range, I have to take the added Mass & Cross Sectional Area of the 6.5mm.


t
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  #53  
Old 12-22-2013, 01:33 PM
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Re: Which 6mm in long action Remington 700? Quality Brass is issue...

Quote:
Originally Posted by Outlaw6.0 View Post
Lets see if I can muddy the waters some. You're welcome.

Speed & BC:
The 6x284 can & will run 3500fps with 105-107 bullets, in the 3300-ish are with the 115 variety. Berger's 115 is not optimal, I believe the 105 Hybrid is at or near that BC. The 115grn DTAC runs a .585 BC, the 117 Matrix VLD is touted at just over that. Couple a near .600 bc at 3200-3300fps & you a whole different level of performance.

The 6.5x284 will run the 140's (.616 BC) at 2900-ish, I'm GUESSING the 130's up near 3100fps.

Both are crazy accurate & BOTH have 1000yd world records under their belt.

Barrel Life:
The 6x284 will in fact torch the throat faster than the 6.5. By how much is dependent upon how you use/abuse it.

Critters at Distance:
Even though, ballistically, the 6mm stomps the monkey snot out of the 6.5 at pretty much any distance as far as drop/drift are concerned; after the 800 yard or so range, I have to take the added Mass & Cross Sectional Area of the 6.5mm.


t
Well put Tyler,

The 6.5-284 is an ideal case for RL17. After doing a little research I see some guys getting 3150 ish with the 140's and 17. That said, the 6-284 is a good case for RL33 and some are getting 3500 + with it and the 105's.

I consider my 6-284 more of a recreational, PD, and varmint rifle. I will no doubt take some deer and speed goats with it but my 6.5 WSM will be my primary deer and goat rifle.

Barrel life is a very real issue. The 6-264 is not quite as overbore as the 300 RUM which should get about 1000 rounds of good accuracy if taken care of not shot hot. So under similar conditions the 6-284 "should" get the same or a little more. that adds up to about $.75 per trigger pull after you order a good match barrel and have the smithing done not to mention down time. It is a spendy way to regulate PD's.

Hopefully my nitrided barrel will stretch that out a thousand rounds or more... we will see

To the OP, the 243 and 6.5-284 are both fine cartridges with great Lapua brass available. If you want to shoot the long bullets in the 243, I would do it in a long action.
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  #54  
Old 12-23-2013, 05:03 AM
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Re: Which 6mm in long action Remington 700? Quality Brass is issue...

Not meaning to derail this thread but ...
where does the 243 WSSM fit into this mess ?
(aside from the obvious brass and action issues )

Ballistically
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