New to 6 Dasher Proposed Build

[chevi_guy]

I have a 40X in 6BR that I would like to convert to 6 Dasher. would like comments on proposed build.

I found a Krieger 31" #14 Heavy Palma 1:8 Twist 4 Groove .237 Bore. Planning on having Pierce Engg Chamber & fit Action .269 Neck .104 Free Bore. all set into a Baer F-Class Stock.

Ben Foster

 

[swd]

I'd go with a 7.5" twist so you don't limit the bullets you can use and .140"-150" free bore to maximize the case. Bush the firing pin hole if you already haven't. Enjoy!

 

[tclaunch]

Agreed, freebore is short, and ask about the reamers diameter at the .200" line. You can use Redding dies with Sammi specs there at .4714" if its less, custom dies may be required. The 8 twist works with Berger 105 Hybrids, 7.5 is better with 115 Tubbs and the new Match King 110`s.

 

[johara1]

Agreed, freebore is short, and ask about the reamers diameter at the .200" line. You can use Redding dies with Sammi specs there at .4714" if its less, custom dies may be required. The 8 twist works with Berger 105 Hybrids, 7.5 is better with 115 Tubbs and the new Match King 110`s.

This not completely true, a Harrell's die is made to fit from 3 fired cases for only 75.00 and is as good or better than Redding off the shelf die. You may want to try a Brux 7.83 they shoot the lights out in a HV. @ 28" One more point buy your own reamer, PM. me and I will give you the specs. That way Your stuff works from one barrel to the next. ........ Jim

 

[chevi_guy]

This not completely true, a Harrell's die is made to fit from 3 fired cases for only 75.00 and is as good or better than Redding off the shelf die. You may want to try a Brux 7.83 they shoot the lights out in a HV. @ 28" One more point buy your own reamer, PM. me and I will give you the specs. That way Your stuff works from one barrel to the next. ........ Jim

Thanks to all.
I will switch to 7.5 twist should I want to use the longer bullets. I already use Harrell's dies for my Bench Rest stuff. They are great.

I hear a lot about Fire Forming. Looks like a lot of folks use the false Shoulder method. I watched a guy shoot a 11/4" 10 shot 9X group at 600
during a match at CMP fire forming false shoulder Brass.

Ben

 

[MattS]

My rifle barreled by Pierce was with that reamer. I've had great luck with Jam & Shoot method, lost 1 case from 100 pieces. This is my first wildcat rifle.

Lapua brass no prep other than neck turning.
30grs varget
105 hornady bthp
.030" jam

 

[chevi_guy]

I'd go with a 7.5" twist so you don't limit the bullets you can use and .140"-150" free bore to maximize the case. Bush the firing pin hole if you already haven't. Enjoy!

Just ordered a Krieger HV 31"(30" finished) 1:7.5 .237 bore. From Bruno it was in stock should have it tomorrow or Mon. Then off to Pierce next week.
My firing pin is bushed to .06.
I do appreciate all the info. It really helped.
Thanks
Ben

 

[bpmoss1]

Thanks to all.
I will switch to 7.5 twist should I want to use the longer bullets. I already use Harrell's dies for my Bench Rest stuff. They are great.

I hear a lot about Fire Forming. Looks like a lot of folks use the false Shoulder method. I watched a guy shoot a 11/4" 10 shot 9X group at 600
during a match at CMP fire forming false shoulder Brass.

Ben

Save yourself some headaches and consider the 6bra. Do a little research on hear, a lot of people switching for good reasons.

 

[dkhunt14]

Save yourself some headaches and consider the 6bra. Do a little research on hear, a lot of people switching for good reasons.

There is nothing wrong with the Dasher. It has a little more speed and still wins a lot. It shoots just as small as the 6BRA. When it gets windy the Dasher will prevail most times. A few small groups don't tell me anything. When it starts winning aggregates and breaking aggregate records, then it earns it's place. Everybody seems to want to jump on the bandwagon when one or two small groups get shot. Matt

 

[bpmoss1]

There is nothing wrong with the Dasher. It has a little more speed and still wins a lot. It shoots just as small as the 6BRA. When it gets windy the Dasher will prevail most times. A few small groups don't tell me anything. When it starts winning aggregates and breaking aggregate records, then it earns it's place. Everybody seems to want to jump on the bandwagon when one or two small groups get shot. Matt

Yep, I agree with you that the Dasher is king until it's dethroned. I just think the Dasher is a more finicky cartridge to tune, requiring more time, knowledge, and access to long range for tuning. Also I think if your gonna be a Dasher guy you should have a fire-forming barrel which can be the first one you shoot out (which will be partially to fire-forming). I shot a straight 6br light gun (600/1000) for my first 2 1/2 years of comp. and did very well with it (so easy to tune). I'm glad I started with it, as it kept me from getting discouraged right out of the gate. Then had Alex build me a Dasher (just before he started messing with the 6bra) and it was a whole new experience. Sent barrels back to Alex to re-chamber to 6bra. and not looking back. I just believe the 6bra is going to be a more simple alternative to the Dasher, hope so anyways. If it doesn't work out for me (which i doubt) I'll have no resevations about going back to the staight 6br (still have my reamer). Barry.

 

[bpmoss1]

Yep, I agree with you that the Dasher is king until it's dethroned. I just think the Dasher is a more finicky cartridge to tune, requiring more time, knowledge, and access to long range for tuning. Also I think if your gonna be a Dasher guy you should have a fire-forming barrel which can be the first one you shoot out (which will be partially to fire-forming). I shot a straight 6br light gun (600/1000) for my first 2 1/2 years of comp. and did very well with it (so easy to tune). I'm glad I started with it, as it kept me from getting discouraged right out of the gate. Then had Alex build me a Dasher (just before he started messing with the 6bra) and it was a whole new experience. Sent barrels back to Alex to re-chamber to 6bra. and not looking back. I just believe the 6bra is going to be a more simple alternative to the Dasher, hope so anyways. If it doesn't work out for me (which i doubt) I'll have no resevations about going back to the staight 6br (still have my reamer). Barry.

Also when I was shooting my 6br I was one of the very few shooting 6br. Most were Dashers some were brx, 6-47L, ect. I just wonder if there where as many 6brs as there are Dashers competing, if there would be a more comparative number of records held by 6brs. Barry.

 

[dkhunt14]

Also when I was shooting my 6br I was one of the very few shooting 6br. Most were Dashers some were brx, 6-47L, ect. I just wonder if there where as many 6brs as there are Dashers competing, if there would be a more comparative number of records held by 6brs. Barry.

A few years ago, There was this guy had a Dasher, won more shootoffs then anybody i ever saw at Williamsport. Decided he didnt want to neck turn or foreform anymore.

That winter he had Mark cut it off amd make it a 6 BR. That summer he won no shootoffs and hardly any relays. That winter he cut it off again and made it a Dasher. That summer he went right back to winning. He told me the 6 BR just got hammered in the Williamsport winds. Most the 6 BR guns that show up there end up as Dasher.

With the winds we get you pretty much need a Dasher or 300 WSM to win. I have seen A bunch of everything shows up because we get so many guns. We used to average 100 light guns and 80 heavy guns every other week. Alot of guys have 4 or more guns in their stable. You pretty much can see what works with so many guns shooting. As a side note i was the first to shoot a Dasher at Williamsport and i won alot against all the others. It didn't take but a couple of years and the field was 50 percent Dasher.
I believe the slightly slower speed of the 6BRA will hurt you there. You only get one or two decent relays on an average year. Matt

 

[lawman29]

That winter he had Mark cut it off amd make it a 6 BR. That summer he won no shootoffs and hardly any relays. That winter he cut it off again and made it a Dasher. That summer he went right back to winning. He told me the 6 BR just got hammered in the Williamsport winds.

I shoot F Class. Last year shot a 6BR did okay. Had Keith make it a Dasher for this year (Norma Brass), with RL 16 and 105 hybrids I'm doing 3,100; won the first two matches in Billings...

 

[Alex Wheeler]

There is nothing wrong with the Dasher. It has a little more speed and still wins a lot. It shoots just as small as the 6BRA. When it gets windy the Dasher will prevail most times. A few small groups don't tell me anything. When it starts winning aggregates and breaking aggregate records, then it earns it's place. Everybody seems to want to jump on the bandwagon when one or two small groups get shot. Matt

Its very close to setting some IBS aggs this year. Even if it doesnt, its showing better agg potential than I have ever seen. Although this last match's conditions put a hurting on that. I'll make a bold statement and say it is 100% better than the dasher. First, it runs the same speed as a dasher. 2990 fps is a common node in a 28" with H4895. The throat erodes far less. It seems to have a wider node. Brass is fool proof to make. Its easy. I have guys in Fl. shooting the same load as here in Mt. I have chambered a pile of dashers, and the feedback I get from customers is overwhelmingly better with the BRA. I bet in a few years it will take over the dasher's place. It does everything a dasher does better. I think the biggest thing is brass, no false shoulders, no hydro form, no jamming, just shoot them and they all come out even lengths. If someone calls for a dasher I always give them my opinion on the BRA. Makes no difference to me other than I want guys to shoot their best.

 

[dkhunt14]

Its very close to setting some IBS aggs this year. Even if it doesnt, its showing better agg potential than I have ever seen. Although this last match's conditions put a hurting on that. I'll make a bold statement and say it is 100% better than the dasher. First, it runs the same speed as a dasher. 2990 fps is a common node in a 28" with H4895. The throat erodes far less. It seems to have a wider node. Brass is fool proof to make. Its easy. I have guys in Fl. shooting the same load as here in Mt. I have chambered a pile of dashers, and the feedback I get from customers is overwhelmingly better with the BRA. I bet in a few years it will take over the dasher's place. It does everything a dasher does better. I think the biggest thing is brass, no false shoulders, no hydro form, no jamming, just shoot them and they all come out even lengths. If someone calls for a dasher I always give them my opinion on the BRA. Makes no difference to me other than I want guys to shoot their best.

Tom told me, when he tried the BRX, that the 50 feet he lost over the Dasher hurt his aggs. How can a case smaller in capacity run faster then a BRX? Here the winds kill you. That is why the 6 BR is not shot much. The hundred feet slower absolutely kills your aggs.

The weekend we just had where 12 inches won relays in light gun and Sunday in heavies was worse where one relay was won with 18 inches. That was a good shooting 300 WSM that shot that big. This is typical of a few days a year we get. We hardly ever get many good days and you are lucky if you get 3 relays a year in either class where you can shoot small. Once every couple of years we get a good year. This is the reason I shoot the 300 WSM here. It just doesnt get blown around like the 6 and is easier to stay centered and score. It sure isn't because I enjoy the recoil in a 17 pound gun.

I see the point of easier to make brass and some other reasons. Brass making to me isn't an issue becuase you can get many firings out of it. Matt

 

[Alex Wheeler]

All I can tell you is that the node is 2980-2990 in a BRA. I do not have experience with the brdx. The point with the brass is making good brass. When guys make dasher cases the screw them up. If your lengths are not coming out within one or two thousandths after forming you have made inconsistent brass. Hydro forming was great, very good cases. The BRA makes good cases no matter what. It really is a better case. I have not chambered a dasher since the first bra if that tells you anything about how its catching on...

 

[Whitehunter]

Tom told me, when he tried the BRX, that the 50 feet he lost over the Dasher hurt his aggs. How can a case smaller in capacity run faster then a BRX? Here the winds kill you. That is why the 6 BR is not shot much. The hundred feet slower absolutely kills your aggs.

The weekend we just had where 12 inches won relays in light gun and Sunday in heavies was worse where one relay was won with 18 inches. That was a good shooting 300 WSM that shot that big. This is typical of a few days a year we get. We hardly ever get many good days and you are lucky if you get 3 relays a year in either class where you can shoot small. Once every couple of years we get a good year. This is the reason I shoot the 300 WSM here. It just doesnt get blown around like the 6 and is easier to stay centered and score. It sure isn't because I enjoy the recoil in a 17 pound gun.

I see the point of easier to make brass and some other reasons. Brass making to me isn't an issue becuase you can get many firings out of it. Matt

 

[Whitehunter]

Think about 14 shooters that shoot 1 light gun target and 1 heavy gun target a day.

Its very close to setting some IBS aggs this year. Even if it doesnt, its showing better agg potential than I have ever seen. Although this last match's conditions put a hurting on that. I'll make a bold statement and say it is 100% better than the dasher. First, it runs the same speed as a dasher. 2990 fps is a common node in a 28" with H4895. The throat erodes far less. It seems to have a wider node. Brass is fool proof to make. Its easy. I have guys in Fl. shooting the same load as here in Mt. I have chambered a pile of dashers, and the feedback I get from customers is overwhelmingly better with the BRA. I bet in a few years it will take over the dasher's place. It does everything a dasher does better. I think the biggest thing is brass, no false shoulders, no hydro form, no jamming, just shoot them and they all come out even lengths. If someone calls for a dasher I always give them my opinion on the BRA. Makes no difference to me other than I want guys to shoot their best.

Your relays start at 8:OO a.m. with 14 to 16 shooters and shoot 1 target light gun and 1 target heavy gun. Try shooting all day in any condition and see how the records and target aggs go.

 

[Alex Wheeler]

Think about 14 shooters that shoot 1 light gun target and 1 heavy gun target a day.

Your relays start at 8:OO a.m. with 14 to 16 shooters and shoot 1 target light gun and 1 target heavy gun. Try shooting all day in any condition and see how the records and target aggs go.

You know it gets day light about 5 am up here this time of year right? Maybe we should make a rule where all matches start at a certain time after local sun rise? I mean 9 am in Ga. is very different then 9 am in Mt. right? That would be the most fair no? I would be all for an equal start time after sunrise as well as a standard match format. And guess what? The cream will still rise to the top...

And what does your comment have to do with a cartridges agging abilities? Sounds more like some kind of spiteful/jealous comment rather than an intelligent one.

 

[Raythemanroe]

Tom told me, when he tried the BRX, that the 50 feet he lost over the Dasher hurt his aggs. How can a case smaller in capacity run faster then a BRX? Here the winds kill you. That is why the 6 BR is not shot much. The hundred feet slower absolutely kills your aggs.

The weekend we just had where 12 inches won relays in light gun and Sunday in heavies was worse where one relay was won with 18 inches. That was a good shooting 300 WSM that shot that big. This is typical of a few days a year we get. We hardly ever get many good days and you are lucky if you get 3 relays a year in either class where you can shoot small. Once every couple of years we get a good year. This is the reason I shoot the 300 WSM here. It just doesnt get blown around like the 6 and is easier to stay centered and score. It sure isn't because I enjoy the recoil in a 17 pound gun.

I see the point of easier to make brass and some other reasons. Brass making to me isn't an issue becuase you can get many firings out of it. Matt

Matt, I feel if you are gonna travel and shoot National's that the WSM isn't gonna do it..

Williamsport I honestly feel like a guy should have a WSM and a 6BR improved (Dasher) ready to go.. WSM is for sure gonna score better at Williamsport, but on a good day it's hard to beat those darn 6mm's


Ray