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Any one shooting the dasher as a varmit rifle ??

I plan to build a dasher in a 10 twist...as a varmit/target rifle.
Just wondering if anyone was shooting the dasher with a slow or slower twist with light
bullets and what kind of results they might be having?
 
I've done up several on 13 or 14 twists for shooting prairie dogs using either 55 or 70 grain Ballistic Tips. H-322 or VV-133 work great for the smaller bullets.
 
Im thinking of light er contour barrel 26" to keep the weight down and rifle ballanced.
I was wondering what kind of speed(velocity) might be had with the 70 gr ers..?
What kind of accuracry?
 
I shoot a 14 twist Dasher with the 70 NOS BT and love it.
35.5 gr V-135 at 35xx fps. good to 600 yds and further.
 
FJIM, what are your reasons for wanting a dasher? I am starting a build for varmints and am still tossed up on the caliber. I am very interested in the dasher over a 6mm BR Norma. What sold you?
 
well i been shooting the 6BR in a 14 twist for 10 years, two dif/rifles.
and with one rifle with a 3 grouve 14 twist 24" i have been able to shoot 70 gr bullet at 3,550 fps(i will say the loads were worked up to and on the warm side) but have shot the same cases for years with no problems..Im looking for more speed and i want to play with a heaver bullet and the dashers reputation with its extra case capicity and great accuracry
is what in looking for..finally put the nail in the 22/250 casket. the 6BR's accuracry is unquestionable and the 250 stands no chance but in the field the 6BR in my hands has proved to be deadly and real close to as flat shooting as the 22/250 but in the hands of seasoned 250 shooters the BR is not quite as flat shooting and causes some over and under shots at strange ranges if you are a good 250 shooter. some of the die hard 250 guys i have got to go to the 6BR becauses of my success with it and they love it on the paper but are unhappy in the field. Witch i find hard to believe so i been wanting to try some heaver bullets and im not sold on the 1-8 twist for what i do. so i was thinking a 10twist to try some heaver bullets and in the dasher to silence the 250 guys once and for all..lol....i mean im tired of hearing about it..
not sold on the 1-8 twist..I have shot some great groups at 300yrds with a 14 twist and a 65gr bullet. i just shot one the other day, 3 shots cutting each other and two off for like a .950 group and that sucks,i have shot many groups in the .350-.750 range.I have shot ground hogs at 650yrds and just have no need for more twist. but i have been wanting to try some heaver bullets for years and i want to keep the rifle as a real target/varmit rifle and i feel to be a good varmit rifle you need the velocity.
so im going to try the dasher, going to order my reamer and barrel soon. Yea like as soon as i get the reamer i allready ordered and have been waiting on for allmost two month's.
 
I think you're making a mistake in not building on an 8 twist.

My 8 twist 22" Rock runs the 70 grain Ballistic Tips a hair over 3600 into itty bitty groups, and still pushes 95 VLD's to 3060. I can get 100 fps more, but the accuracy's at 3060. It's throated for the 95's, as I never intended to run the 105/107 bullets in this gun.

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Thanks for the input alf, Not that i dont believe you..im just not ready to go to the 8 twist.
im going to go with the 10 twist throated for the 80-88 gr'ers. But i sure figured over 3,600 for the 70gr ers. i just ordered my mcmillian stock.. my new 6 BR is in the build hopper now. I need to order two more reamers and two more barrels..one for the dasher and one for the 6AR.
 
A big advantage the Dasher has over the 22-250 is case stretch. I never
have to trim my 40 degree Dasher cases. Maybe after 15 firings. But those
250 cases need trimming after only a few shots. With the 70 Nos BT
my longest PD shot is 914 yds with many 600 yd shots. It is a smoking
round out of a Dasher. If you like acrobatic shows with lots of red mist
and body parts just shoot the 87 V-Max out of a 10 or 12 twist Dasher.
It sometimes throws the PD's high in the air.
You will be giving up nothing to a 22-250 in terms of flat trajectory with the
65 - 75 wth bullets.
Voldoc shot more 1,000 yd dogs on last year's PD Safarri with 87 V-max
than with the 105 class bullets. The 87 V-max is a fine 1 M bullet.
Are any of your 22-250 buddies making 1,000 yd. shots?
Concerning the 6mmAR we have not tried. But Junebug has a 40-x bolt
gun chambed in 6mm Turbo that has awesome accuracy. It is the
40 degree improved version of the AR. Love it in a bolt gun.
 
birdog, yes and no, longest recored 22/250 kill on ground hog(bigger than pd) is 920yrds.
now thats with a 55gr bullet launched at 3,850fps velocity.
very seldom do we shoot that far more like give me shots at 200yrds,(say 200-550 would be normal) and out to 650 to 750 at the longest. but we have trickey wind, allmost impossible to figure,sometimes it seems to be left to right,gusting tail wind,head wind ect ect all at the same time. so unless your shooting like a 7mag or bigger seems nothings consistant. so what we found is nothing is better than high velocity and flat shooting, the less you have to compensate for in bullet trajectory the better and shoot the let up.so speed is key there.we have had a lot of kills useing that method. even with high bc bullets, it seems better with the high velocity and takeing that split second shot at the let up with a small amount of hold off.
now some years ago we did some testing at 300yrds with a .220 swift and a 7mag with a very fast 150gr bullet. we set up a 4'x8' sheet of plywood completely covered with white paper towels and two bulleyes on it, first i shot a 3 shot group with the swift and you could cover them three shots with a quarter(right at the bullseye).then i shot a 3 shot group with the wind at full value with the swift and they were two feet to the right and 14" low, now the 7mag in the same wind was about 3" right and 3-4"low.so the wind is very tricky because its never conistant in the same direction, I had a super accurate 40xKS in .223 and had some unbelieveable kills at 450-500yrd and thought is was getting to like that little .223 then one day i had 2 ground hogs the size of beavers at 300yrds standing up and i shot like 7-8 times and never touched them, because of switching winds. now i have never had enough wind(switching or not) at 300yrds that them hogs would have wanted me to shoot twice with 22/250 or a 14 twist 6BR with a 65-70 gr bullet.
 
Accuracy above all. I started out in Nebraska Prarie dogging with 220 swifts and
22-250's but now I only take 6mm BR's and Dashers.
In those winds the 6mm's have a big edge. Longest shot to date on a PD is
1394 yd. After I got the yardage and windage doped in it only took 5 or 6 shots
to drop him with the 115 Bergers. 70 Nos BT are very rude to the dogs under 600.
 
I ran your numbers through the Berger ballistics program. 55 gr. bullet 3850 fps. Ten mile an hour cross wind 164 inches drift at 900 yds. There must be reason 220 Swifts and 22-250's are not shot in competition, even at 300 meters. Get something like a 6BRX and a range finder.
 

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