6 mm Dasher

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Peter L
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Joined: Sun Apr 04, 2010 9:17 am
Location: Bacchus Marsh

Re: 6 mm Dasher

#16 Postby Peter L » Fri Nov 24, 2017 9:35 am

Talking about dasher powders, I wonder why most of the shooters in NSW using 2208 and in Victoria 2209?

johnk
Posts: 2136
Joined: Sun Sep 07, 2008 7:55 pm
Location: Brisbane

Re: 6 mm Dasher

#17 Postby johnk » Fri Nov 24, 2017 10:24 am

Postcode.

RDavies
Posts: 1773
Joined: Sun Feb 12, 2006 7:23 pm
Location: Singleton NSW

Re: 6 mm Dasher

#18 Postby RDavies » Tue Nov 28, 2017 3:05 pm

Peter L wrote:Talking about dasher powders, I wonder why most of the shooters in NSW using 2208 and in Victoria 2209?

In NSW I think a few more are switching to 2206H over 2208.

Frank Green
Posts: 169
Joined: Wed May 28, 2014 11:48 pm

Re: 6 mm Dasher

#19 Postby Frank Green » Wed Nov 29, 2017 1:10 am

2208 / Varget powder in a ammunition pressure test barrel that we made for a powder maker and I received load data back....31.8gr. was considered a max working load with a 107 SMK's. Just for reference for ya.

I run my Dasher at 31.7-31.8 with a 105 Hybrid, Hornady Match and Lapua Scenars. All of them shoot exceptionally well.

To the op.....having the bullets touch or being jammed into the rifling doesn't guarantee better groups. Trying running them off the lands. I start at .010" typically.

Also it being a button rifled barrel....your barrel might not have a uniform twist. If this is the case it makes the barrels more temperamental as to what it will like. If this is the case try a different make bullet like Sierra or Hornady etc....

Have the muzzles crown checked for any damage. You might not see it with the naked eye but even a slight amount of damage can cause accuracy problems as well.

Some food for thought for ya.

Later, Frank
Bartlein Barrels

Brad Y
Posts: 1927
Joined: Fri Jun 26, 2009 8:21 pm

Re: 6 mm Dasher

#20 Postby Brad Y » Wed Nov 29, 2017 12:28 pm

Interesting Frank, most dashers I know of use around 36gr h4350, 33gr varget and 31.5 or thereabouts of h4985 all for around 3000fps.

RDavies
Posts: 1773
Joined: Sun Feb 12, 2006 7:23 pm
Location: Singleton NSW

Re: 6 mm Dasher

#21 Postby RDavies » Wed Nov 29, 2017 2:52 pm

Brad Y wrote:Interesting Frank, most dashers I know of use around 36gr h4350, 33gr varget and 31.5 or thereabouts of h4985 all for around 3000fps.


As I do, but I wonder what the actual pressure is that we are running at? I would say it is likely that we are lucky we are using strong brass in strong actions. I don’t know if I would want to try it in Remington brass in an old Omark action.

Brad Y
Posts: 1927
Joined: Fri Jun 26, 2009 8:21 pm

Re: 6 mm Dasher

#22 Postby Brad Y » Wed Nov 29, 2017 2:57 pm

Mine was a plain unbushed firing pin rem 700, krieger 236 barrel 31.6 2206h cci br4 and 105 hybrid. 3030fps and it used to hammer. Barrel went south after 1000 rounds and from memory the throat grew pretty fast too. Does indicate it was warm but man it shot!

Frank Green
Posts: 169
Joined: Wed May 28, 2014 11:48 pm

Re: 6 mm Dasher

#23 Postby Frank Green » Thu Nov 30, 2017 1:31 am

Brad Y wrote:Interesting Frank, most dashers I know of use around 36gr h4350, 33gr varget and 31.5 or thereabouts of h4985 all for around 3000fps.


My load in my gun (27.25 finish length barrel on a Rem.40x action) was putting me right at like 2880fps. In the 30" pressure test barrel it gave them 2917fps. So all makes sense.

In the test barrel H4350 at 35.2gr. was a normal max. working load.

There where a couple of other powders tested but not H4895.

Most of the loads I see/hear guys running are hotter than the data I got. Doesn't mean they don't shoot but will shorten brass life etc..and harder on the gun.

Later, Frank

Frank Green
Posts: 169
Joined: Wed May 28, 2014 11:48 pm

Re: 6 mm Dasher

#24 Postby Frank Green » Thu Nov 30, 2017 1:34 am

RDavies wrote:
Brad Y wrote:Interesting Frank, most dashers I know of use around 36gr h4350, 33gr varget and 31.5 or thereabouts of h4985 all for around 3000fps.


As I do, but I wonder what the actual pressure is that we are running at? I would say it is likely that we are lucky we are using strong brass in strong actions. I don’t know if I would want to try it in Remington brass in an old Omark action.


On a similar note....we just made a ammunition pressure test barrel in 6PPC. Hornady is going to do the testing for us. The original spec. for the PPC was around 3150fps. with a 65-68gr. bullet but most of the bench shooters are running them up to 3500fps. It's going to be interesting to see what the pressure data comes back at!

Later, Frank

dbro
Posts: 12
Joined: Sat Apr 14, 2007 6:24 am
Location: toowoomba region

Re: 6 mm Dasher

#25 Postby dbro » Sun Dec 03, 2017 7:34 am

Hi guys have tried 35 gns. 2209 tight with great results going about 3020 fps,

cheers


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