6 Dasher thread

[KyleR1985]

I could be wrong, but I think the issue came from when folks were forming dasher brass.

Peterson and Alpha make dasher brass now. I’m pretty sure that brass will work with pretty much any reamer.

They both work in my chamber which was done by a PTG reamer with a .272” neck.

 

[NWBLKTAIL]

I could be wrong, but I think the issue came from when folks were forming dasher brass.

Peterson and Alpha make dasher brass now. I’m pretty sure that brass will work with pretty much any reamer.

They both work in my chamber which was done by a PTG reamer with a .272” neck.

Yes it seemed issues came from forming brass, that was what I was reading as well.

 

[Lawnboi]

I did a lot more digging last night before I read this post and came to the conclusion that the alpha reamer was the way to go.

A lot of guys reporting the reamer working well with other brass as well (Peterson/lapua) with no neck turning.

I would likley go all alpha and make life easy for myself.

Did you get .120 freebore reamer? I was on Mansons site last night just surfing options

I bought a .120 reamer made by alpha. 120 seems perfect for off the lands shooting of the Berger hybrids and 107tmk.

Yea you can use other brass in the alpha chamber too and vice versa.

Alpha is a .274 neck I believe. And has body and neck radiuses that are slight.

I’d avoid a .272 neck for alpha brass in a field rifle. Getting pretty tight

 

[NWBLKTAIL]

I bought a .120 reamer made by alpha. 120 seems perfect for off the lands shooting of the Berger hybrids and 107tmk.

Yea you can use other brass in the alpha chamber too and vice versa.

Alpha is a .274 neck I believe. And has body and neck radiuses that are slight.

I’d avoid a .272 neck for alpha brass in a field rifle. Getting pretty tight

Thanks for laying all this stuff out, good point on the .274 neck. Those are the little details I would overlook.

 

[KyleR1985]

I bought a .120 reamer made by alpha. 120 seems perfect for off the lands shooting of the Berger hybrids and 107tmk.

Yea you can use other brass in the alpha chamber too and vice versa.

Alpha is a .274 neck I believe. And has body and neck radiuses that are slight.

I’d avoid a .272 neck for alpha brass in a field rifle. Getting pretty tight

My howa mini has a .275 neck now, because the arc chamber didn’t clean up fully. We used a chucking reamer to make the whole neck .275” instead of .272”.

 

[Lawnboi]

Thanks for laying all this stuff out, good point on the .274 neck. Those are the little details I would overlook.

If your doing a tikka I would just source a blank and send it to fisher t&c, he has done my last few barrel and iv been very happy with his work.

 

[NWBLKTAIL]

If your doing a tikka I would just source a blank and send it to fisher t&c, he has done my last few barrel and iv been very happy with his work.

That was the plan, tikka. Thank you I’ll look him up

 

[mwoolsey5]

Oh man, I’ll be keeping an eye on this thread. I’m going to have a hell of a time deciding between the 6 Dasher, 6 GT, or 6 CM next year when I start a new build.

 

[acochran]

Any of the BR or BR-improved cartridges are an absolute blast to shoot with extreme accuracy, effortless load development, and minimal recoil. There’s good reasons they’re so utilized in the comp world. I do prefer something with a bit more juice for wind deflection if I’m hunting out to 500+ yards. In gusty conditions, a 105-110 grain bullet at 2800 fps is not ideal for first round impacts, in my opinion. But everyone who reloads should have one. I’d take a dasher over a 223 any day.

 

[Lawnboi]

Game dasher. 1100 rounds into it, getting ready for the first match of the year.

The g2 recoil x….. wow. What a difference. It’s like shooting a brake again without the concussion.

 

[Judd]

Doing dasher things I see....when do you typically retire a barrel? I ask because I used to pull them at 1,100-1,200 and start on a new one. My fear was they would start opening up during a match and I just couldn't chance it.

 

[Lawnboi]

Doing dasher things I see....when do you typically retire a barrel? I ask because I used to pull them at 1,100-1,200 and start on a new one. My fear was they would start opening up during a match and I just couldn't chance it.

I can’t stay but most seem to pull them at 2000 rounds in the prs world. I’d expect my hunting barrel to go even longer.

Iv got another match barrel chambered, just waiting on an action nitride from UM to screw it on and start breaking it in.

My goal is to have 2 barreled actions for comp use in rotation and 2 for hunting in rotation.

 

[Lawnboi]

Any of the BR or BR-improved cartridges are an absolute blast to shoot with extreme accuracy, effortless load development, and minimal recoil. There’s good reasons they’re so utilized in the comp world. I do prefer something with a bit more juice for wind deflection if I’m hunting out to 500+ yards. In gusty conditions, a 105-110 grain bullet at 2800 fps is not ideal for first round impacts, in my opinion. But everyone who reloads should have one. I’d take a dasher over a 223 any day.

Curious where you draw the line for a gun for 500 yards in regards to wind number?

On paper it seems I need to jump significantly in powder or bullet weight to gain much at all. With the 107 and 116tmk now you’re looking at pretty efficient bullets going at a decent speed.

 

[Treelineasassin]

My observation from shooting BR variants in the prs world, long barrels low psi:

They typically get ran with 105-109gr bullets from 2760-2820, barrels usually get pulled 2000-2500. They can all be ran near 100fps faster. I've shot 6bra, and 6br. Both extremely accurate and mindless reloading, just simple. I did just buy a 21in light contour dasher barrel so we'll see how it goes.

GT case: typical speeds low 2800- low 2900s, barrels typically pulled at same intervals. I've shot out 5. Pulled all at 2500, one at 2700. I pretty much burn H4350 exclusively in prs gt barrel due to low carbon fouling low heat. Running 115gr bullets low 2800s. The 115 dtac in a 7.5tw for me has trued out around 310g7 in several barrels at 2820-2830mv. That combination runs same wind holds or maybe 0.1 more than most high bc 25 and 65 bullets. The gt gets it done with noticibly less recoil than a 25cm or 65cm tho. I have those too. The dasher just doesn't have quite enough capacity to run the 115 at the speeds I want out west where winds can get heavy at times.

 

[43.6N]

My observation from shooting BR variants in the prs world, long barrels low psi:

They typically get ran with 105-109gr bullets from 2760-2820, barrels usually get pulled 2000-2500. They can all be ran near 100fps faster. I've shot 6bra, and 6br. Both extremely accurate and mindless reloading, just simple. I did just buy a 21in light contour dasher barrel so we'll see how it goes.

GT case: typical speeds low 2800- low 2900s, barrels typically pulled at same intervals. I've shot out 5. Pulled all at 2500, one at 2700. I pretty much burn H4350 exclusively in prs gt barrel due to low carbon fouling low heat. Running 115gr bullets low 2800s. The 115 dtac in a 7.5tw for me has trued out around 310g7 in several barrels at 2820-2830mv. That combination runs same wind holds or maybe 0.1 more than most high bc 25 and 65 bullets. The gt gets it done with noticibly less recoil than a 25cm or 65cm tho. I have those too. The dasher just doesn't have quite enough capacity to run the 115 at the speeds I want out west where winds can get heavy at times.

So I guess the question that needs to be asked:

For a hunting build what barrel and what bullet are you picking?
6GT or 6 dasher?

And would you compete with that same barrel length? (Irrespective of contour)

 

[Treelineasassin]

So I guess the question that needs to be asked:

For a hunting build what barrel and what bullet are you picking?
6GT or 6 dasher?

And would you compete with that same barrel length? (Irrespective of contour)

If I had to pick only one, I'd likely go with the gt as it's a lil more broad spectrum on usable powders, has a longer neck, less finicky magazine wise. The extra 4.5gr capacity allows you to to run 60-90fps faster before pressure, or run 2-3" less barrel at same MV.