Brass life of newer 6 Dasher Fclass brass?

[steve123]

And general thoughts of it compared to Lapua 6BR brass once formed to Dasher? I know that the neck is longer, etc.

What got me thinking about this was it seems 6BR Lapua brass is out of stock a lot, like at Powder Valley, where I usually buy from.

Oh, and how about Norma brand 6BR brass compared to Lapua?

I've been real happy with x47L brass which has lasted seemingly forever so I don't want to be disappointed.

Thanks

 

[steve123]

And general thoughts of it compared to Lapua 6BR brass once formed to Dasher? I know that the neck is longer, etc.

What got me thinking about this was it seems 6BR Lapua brass is out of stock a lot, like at Powder Valley, where I usually buy from.

Oh, and how about Norma brand 6BR brass compared to Lapua?

I've been real happy with x47L brass which has lasted seemingly forever so I don't want to be disappointed.

Thanks

Is it that the fclass brass is too new to know or you guys just don't like it?

I'm either going to do a Dasher, a 6BRA, or 6mmBR, I haven't decided yet and brass availability is a strong consideration.

 

[Titan]

Is it that the fclass brass is too new to know or you guys just don't like it?

I'm either going to do a Dasher, a 6BRA, or 6mmBR, I haven't decided yet and brass availability is a strong consideration.

If only there was somekind of search function on these forums...
http://forum.accurateshooter.com/threads/norma-6-dasher-brass-stress-test.3913166/

 

[steve123]

If only there was somekind of search function on these forums...
http://forum.accurateshooter.com/threads/norma-6-dasher-brass-stress-test.3913166/

Well at least you tried to help, although in a crusty way, lol. Thanks though. I searched google and here, both with nothing germain to my question on the F-class Dasher brass.

That thread was in 11/16 and it was likely the batches of old/new Dasher Norma brass??? Besides, the OP of the thread seemed to have had a chamber problem.

I'm referring to the "new" Norma f-class brass which the guy in the link I'm assuming didn't use???

Don't get me wrong, my first choice would be Lapua but what if the entire next shipment into the states is sold out before I realize it. Well it would be nice if I didn't need to firefrom for the Dasher if I choose that chambering.

Looks like Alpha brass might make 6mmBR brass or Dasher brass too.

 

[Titan]

Well at least you tried to help, although in a crusty way, lol. Thanks though. I searched google and here, both with nothing germain to my question on the F-class Dasher brass.

That thread was in 11/16 and it was likely the batches of old/new Dasher Norma brass??? Besides, the OP of the thread seemed to have had a chamber problem.

I'm referring to the "new" Norma f-class brass which the guy in the link which I'm assuming he didn't use???

Don't get me wrong, my first choice would be Lapua but what if the entire next shipment into the states is sold out before I realize it. Well it would be nice if I didn't need to firefrom for the Dasher if I choose that chambering.

Looks like Alpha brass might make 6mmBR brass or Dasher brass too.

Tone is lost on the internet I was just trying to have some fun with you. Read page two of the thread I linked user swd reported over 9 reloads on a single case at max pressure and the primer pocket was still tight, that seems like a pretty positive review, other users consensus seemed to be it was softer then lapua. Not sure if you are going to find certainty on the internet but good luck with your project.

 

[shoot4fun]

One thing for sure, regardless of what Google searches can do, there is NO consensus on the durability or quality of Norma 6 Dasher F-Class brass among those "in the know" on this forum.
It does have less case volume than fire-formed Lapua so you need a little less powder but (and I tried the original stuff) it isn't bad brass. It just either requires a specific reamer to handle the longer neck or a lot of trimming to take the neck to the proper length.

 

[steve123]

Tone is lost on the internet I was just trying to have some fun with you. Read page two of the thread I linked user swd reported over 9 reloads on a single case at max pressure and the primer pocket was still tight, that seems like a pretty positive review, other users consensus seemed to be it was softer then lapua. Not sure if you are going to find certainty on the internet but good luck with your project.

Fun is good, I can handle it, lol.

If I could get 30 cycles at medium pressures that'd be fine.

I do like that the necks are longer and hope that this extends the throat life.

 

[steve123]

One thing for sure, regardless of what Google searches can do, there is NO consensus on the durability or quality of Norma 6 Dasher F-Class brass among those "in the know" on this forum.
It does have less case volume than fire-formed Lapua so you need a little less powder but (and I tried the original stuff) it isn't bad brass. It just either requires a specific reamer to handle the longer neck or a lot of trimming to take the neck to the proper length.

Thanks

If anyone could look at the Fclass Dasher print over at bullets.com, I'd appreciate any insight. In your opinion are the tolerances compared to the virgin brass too much???

 

[swd]

I have the bullets.com PTG Norma Dasher reamer and it works great with their brass. The brass itself is very good too. I haven't spent a whole lot of time with it but I did do a torture test on a couple cases about a year ago. It took it up to an ejector mark on the brass, backed it off .2 and loaded it 9 times at that load. They held a primer almost as tight as new. It won't get quite the same speed as Lapua, maybe 20-40fps less. This is just with one barrel so your mileage may vary.

 

[steve123]

I have the bullets.com PTG Norma Dasher reamer and it works great with their brass. The brass itself is very good too. I haven't spent a whole lot of time with it but I did do a torture test on a couple cases about a year ago. It took it up to an ejector mark on the brass, backed it off .2 and loaded it 9 times at that load. They held a primer almost as tight as new. It won't get quite the same speed as Lapua, maybe 20-40fps less. This is just with one barrel so your mileage may vary.

That's what I wanted to know, very good, thanks.

If I may ask, what was the load and barrel length?

 

[swd]

That's what I wanted to know, very good, thanks.

If I may ask, what was the load and barrel length?

29" I don't recall the particular load, I just loaded it up for the torture test.

 

[Spacegunr]

Last summer (July 2017) I bought 250 of the bullets.com F-class Dasher brass to shoot at the NRA Mid-Range nationals. I was running out of time to fire form enough of the Norma 6BR brass that I had on hand. I had done some work ups with the Norma 6BR brass after fire forming, and did not have any pressure problems with the brass, primer pockets were fine after 2nd and 3rd firings on 40+ cases. So i pushed the easy button and ordered 250 of the F-class cases and trimmed them to length to fit my chamber.

So while at the Nationals, I ended up smoking about a dozen primers out of ~260 shots fired (2/3 of the rounds were brand new Norma F-class Dasher brass). All of the smoked primers came from the Norma F-class Dasher brass, none from the Norma fire formed 6BR brass. Getting those same cases (the F-class cases) ready for 2nd firing, I measure primer pockets with a gauge, and I am losing about 15% of them due to the pockets being enlarged. Have not lost ANY of the Norma 6BR fire formed cases. The Norma Dasher cases also had burrs and other deformities inside the case. So yes, I can attest to the fact that these cases are definitely softer brass.

I now have up to 3 and 4 firings on both lots of brass, and I continue to lose about 15% of the F-class cases each firing, even having backed off of the load for all of the above. I have not lost a single case from the fire formed lot. The only saving grace is that despite the brass troubles, the rifle hammers so I will use those up for as long as they last, and hopefully when they are done I'll be able to buy some Alpha brass to replace them with.

 

[Thauglor]

Maybe you didn't back off the load enough?

 

[swd]

Maybe you didn't back off the load enough?

My thoughts also. It has about .75gr less capacity than Lapua brass. If your used to an upper end mode with Lapua brass the Norma won't get there and live. Be happy in the 2900 to 3000 even nodes.

 

[Spacegunr]

It is possible that the F-class brass was all compromised too much in the 1st firing. Even the good ones I have left take a lot less force to seat the primer than the fire-formed lot. 3000 fps with 105 Hybrids was the goal. With the original load, I was getting about 3030 fps. Backing off involved going from naked to moly coated bullets and reducing the powder charge by .1 gr, so now I am around 2970 fps. I consider that good enough if that will keep the brass from wearing out too soon.

The point I wanted to make was that I am seeing a marked difference within the same brand going from the Norma 6BR to the Norma Dasher brass. I don't think the Dasher brass is as tough as it should be given the hype about special blends and holding up for "many firings". I suppose "normal use" is a very relative term, and if my use is not normal than so be it. Next time I'll look for some that hold up to heavy duty use

 

[lawman29]

Here is a link to my testing: http://forum.accurateshooter.com/threads/6-dasher-norma-brass-reloader-16.3924787/#post-36968593

 

[Midnightmedic]

I don't think the Norma 6mmBR and Norma 6 Dasher brass have the same specs at the .200" data line. Norma 6BR is closer to lapua 6BR brass. Spacegunr's results mimic almost everyone else's that has tried to retro fit 6 norma dasher brass in a chamber set up for the original Dasher formed from 6mmBR lapua brass (or norma). Lawman29's reamer was specific for the Norma 6 dasher brass (.200 data line is .4707") and his primer pockets help up fine. The Norma 6 dasher is skinnier at the .200 line than 6mmBR brass (both lapua/ norma). The chambers for most original Dashers fireformed from 6mmBR brass have a .200" data line of .4712"-.4714" (consistant with the 6mmBR brass they were meant for). Shooting Norma Dasher brass in those chambers just stretches the brass and loosens the primer pockets. Not too many short cuts that work too well for the Norma 6 Dasher brass to work in an older Dasher chamber and last. It's its own brass and needs its own chamber, if you want the brass to last.

 

[4xforfun]

So, there's the 6BR Lapua brass blown out to a Dasher. There's the Norma 6 dasher brass. And now there is Norma 6 Dasher Fclass brass??

So, now I am officially confused!!

Tod

 

[dmoran]

Tod - (@4xforfun)

I'm aware of:
6mm Norma BR made by Lapua <> of which can be formed to 6Dasher
6mm Norma BR made by Norma <> of which can be formed to 6Dasher
6mmDasher made by Norma, for Bullets.com, referred to as "6Dasher FClass Brass" in there sales adds

That's all I know....lol
Donovan

 

[DT]

Tod - (@4xforfun)

I'm aware of:
6mm Norma BR made by Lapua <> of which can be formed to 6Dasher
6mm Norma BR made by Norma <> of which can be formed to 6Dasher
6mmDasher made by Norma, for Bullets.com, referred to as "6Dasher FClass Brass" in there sales adds

That's all I know....lol
Donovan

The 6 Dasher Norma brass was the first lot manufactured and which had some rim thickness issues. The 6Dasher FClass Brass is the second lot which was to correct the issues with the first lot, hence the addition of the FClass designation. Also, Midnight Medic is correct in that the Norma Dasher brass is best served with a slightly smaller dimmensioned reamer. Most "regular" sized Dasher reamers are too large at the .200 mark and can result in primer pocket issues with normal "full" powder charges.