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6 Dasher vs 6.5+284

B muzguy

How can a 6 mm Dasher shoot as good as a 6.5-284?
My 6.5-284 has shot 2” groups @ 800 yards
Is it just because you can shoot faster because of less recoil basically shooting before the conditions change you know what I’m saying.
Thinking of purchasing a 737 Impact Precision action and a 28 inch 6 dasher 1-7.5 twist m24 m40 barrel .

I know the Dashers has won numerous 1000 yard bench rest competition. Everybody seems to be shooting 105 grain Berger hybrids and Varget And using Lapua brass

How can it outperform a 153.5gr. LRHT going 2920 muzzle velocity .694 b.c.

’I have read numerous times all you have to do for the Dasher is dump Varget in and it Bug holes!
Just don’t want to make a mistake.
Thanks
 
B muzguy said:
How can a 6 mm Dasher shoot as good as a 6.5-284?
Click to expand...
6mm:
- Less recoil = better bag tracking, faster shot strings, less stress on optics and mounts.
- Less barrel heat = less throat wear, loads stay in tune longer, less heat fliers in groups, more rounds on a barrel with peak accuracy.
- Better bullet selection, especially for custom hand made target bullets.
- Use of small rifle or small pistol primers.
- Brass available with PPC size flash holes.
- Stronger actions due to less milling on load and ejection ports. Plus option for drop ports.
- Aftermarket support for 6mm with custom dies and tooling is much better as well.

And the 6mm BR variants and PPC variants just seem to have an undeniably high level of inherent accuracy. Probably missing some other things on why a 6mm can be better than a 6.5 but that’s just off the top of my head.
 
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In addition to everything @Ledd Slinger said, higher BC does not equal smaller groups. In fact, ultra high BC bullets are often very fussy and routinely won't group well. Now where high BC bullets do perform well is in providing better first round hits in unknown winds.

Also, while a 2" 800 yd group is good group, the 6s best groups are in the ones, and that is 5-shot groups at 1000 yds.
 
And I’m not knocking 6.5s. I’ve had a 6.5x47L, 6.5x55 Swede, 260 Rem, three different 6.5 Remington Magnums and they have all been extremely accurate but not quite on par to be competitive with the groups these 1K BR guys are putting up on paper with their various 6mms.

I will always own a 6.5mm of some sort for hunting because the bullets are excellent for taking down deer and antelope at long range with a recoil level that is very comfortable in the field. I have a reamer, dies, ADG brass, Krieger barrel, and every else to build a 6.5 SAUM Improved so that will eventually be my next venture on the 6.5s but I only intend to use it for hunting as well.
 
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B muzguy said:
How can a 6 mm Dasher shoot as good as a 6.5-284?
My 6.5-284 has shot 2” groups @ 800 yards
Is it just because you can shoot faster because of less recoil basically shooting before the conditions change you know what I’m saying.
Thinking of purchasing a 737 Impact Precision action and a 28 inch 6 dasher 1-7.5 twist m24 m40 barrel .

I know the Dashers has won numerous 1000 yard bench rest competition. Everybody seems to be shooting 105 grain Berger hybrids and Varget And using Lapua brass

How can it outperform a 153.5gr. LRHT going 2920 muzzle velocity .694 b.c.

’I have read numerous times all you have to do for the Dasher is dump Varget in and it Bug holes!
Just don’t want to make a mistake.
Thanks
Click to expand...
I couldn’t have said it any better than Ledd Slinger or INTJ so I won’t add to it, also 6br1k is correct if your not experienced in wildcatting the 6Bra is much easier to form brass. A standard 6br is a nice way to go as well for a 600 yard rifle and if it’s not really windy they are good at 1k . There’s nothing wrong with a 6.5*284 I’ve had a couple of them if your shooting f class they do pretty well or if your shooting steel they do well but if your trying to shoot br you won’t be able to outperform any of the 6br variants. I would like to know about your 2” 800 yard group?… was that a 5 shot or 10 shot group?… and will it repeat it often?…. In my experience with that chambering it will not,… that’s holding 1/4 minute accuracy. not saying yours won’t but mine would not.
Wayne
 
bozo699 said:
I couldn’t have said it any better than Ledd Slinger or INTJ so I won’t add to it, also 6br1k is correct if your not experienced in wildcatting the 6Bra is much easier to form brass. A standard 6br is a nice way to go as well for a 600 yard rifle and if it’s not really windy they are good at 1k . There’s nothing wrong with a 6.5*284 I’ve had a couple of them if your shooting f class they do pretty well or if your shooting steel they do well but if your trying to shoot br you won’t be able to outperform any of the 6br variants. I would like to know about your 2” 800 yard group?… was that a 5 shot or 10 shot group?… and will it repeat it often?…. In my experience with that chambering it will not,… that’s holding 1/4 minute accuracy. not saying yours won’t but mine would not.
Wayne
Click to expand...
When doing load development at 100 and 300 yards I shoot five shot groups with 153.5gr. Bergers h4831sc 51.4gr. Lapua brass @ 2910 m.v.
I have did many three shot group at 800 2 1/2 inches at 1005 yds. Had my cousin his and daughter age 16 hit 6 inch steel at 1005 yard multiple times they come up from Tennessee once a year I shot first flipped steel over it wrapped around the bar and then my cousin shot knocked it back over Then his 16-year-old daughter shot and flipped it over again. (Free recoil) If you don’t shoot free Recoil it don’t shoot as good.
No cheek weld basically just touch the trigger and stop recoil with shoulder.
It shoots under 1 inch at 300 yards at 100 yards 5 shots looks like three holes if I would shoot three shots at 100 it’s virtually one hole you need a magnifying glass to be able to tell there is three It looks like 2.
I am cleaning the Rifle because it proved it so once again yesterday evening.
I’m putting it away because it is my show off rifle it does things that I can’t even believe. I had a surgeon years back in 338 Lapua it was ridiculous accurate also with 300gr. Lapuas & H1000

I will say this here in Ohio Caldwel Ohio from 6 to 9 o’clock there is virtually no wind I will admit that part.
I’ve been saving my money for two years and babying the 6.5-284

I shoot on private land and I’m getting bored and tired of shooting 800 and 1000 because it’s too much work to set up target I have to use ATV then go take target down pack up and drive half hour on ATV back home but whatever I decide to build I will definitely try it at 1000 yards.
Need to build something else on impact Precision 737r. Seriously thinking of the .284 wheeler now.

Oh I have took it to 1760 also the 6.5 -284 17” 5 shots… That was hard! First two Hit 8 feet right.
 
Not trying to be smart, and not sure how far Caldwell Ohio is from Williamsport Pennsylvania but you should come and shoot at the world open this year, early July, and see how well you could do against the 6 Dashers and BRA’s .A lot of incredibly nice prizes to make it worth your while.A good 6.5x284 can and has won but man the 6’s are tuff little critters!
 
1K6BRA said:
Not trying to be smart, and not sure how far Caldwell Ohio is from Williamsport Pennsylvania but you should come and shoot at the world open this year, early July, and see how well you could do against the 6 Dashers and BRA’s .A lot of incredibly nice prizes to make it worth your while.A good 6.5x284 can and has won but man the 6’s are tuff little critters!
Click to expand...
Yes I 100% agree with 1K6bra save that Barrel and head for Williamsport you most likely will win some prizes
Wayne
 
B muzguy said:
....

I know the Dashers has won numerous 1000 yard bench rest competition. Everybody seems to be shooting 105 grain Berger hybrids and Varget And using Lapua brass

....
Click to expand...
I've been to a few 1000 yard BR matches - I've only seen 1 competitor shoot with berger 105 hybrids.... Not to say there are not more - I just haven't seen it myself.
 
Ledd Slinger said:
A new 6 Dasher is headed my way from Alex Wheeler. I have a bunch of H4895, RL15, Varget, and N140 for testing. Using Alpha 6 Dasher brass so I don’t have to mess around with forming cases. Figure one of those powders ought to work well.
Click to expand...
I’ve never used the VV powder but the first three you mentioned are awesome in the Dasher. I never tried the alpha brass but heard it has less case capacity so start low. H4895 would be my first choice. Rl 15 is filthy so I abandoned it but shot lights out!… and Varget works well too. The guys Alex shoots with in Montana tried Varget and so did I but it just didn’t work in the Dasher like it did in my 6brx’s not sure why almost same thing!…. I think you will like H4895 ask Alex or Tom Mousel I think they both tried Alpha at some point in there Dashers before they wen bra
Wayne
 
Ledd Slinger said:
A new 6 Dasher is headed my way from Alex Wheeler. I have a bunch of H4895, RL15, Varget, N140 and CFE-223 for testing. Using Alpha 6 Dasher brass so I don’t have to mess around with forming cases. Figure one of those powders ought to work well.
Click to expand...
You’ll love it with any of those powders listed but I would put cfe223 last on that list.

I personally use Varget with alpha brass and a 105. Also use a 107smk with vv140 for practice (prs).

Use Varget and let em have that 4895, you won’t need it!
 
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