.22 Dasher blow length

[MrMajestic]

Got my Bartlein barrel from Shiraz and working with Kiff on my reamer. For Lapua Blue box he has the case length at 1.535" which seems to be correct for the 6mm however I read here that the blow length for the .22 is 1.565". .22 Dasher shooters please confirm.
He also included a Norma print at 1.600" and .253 neck diameter. He has the Lapua at .252, sound correct.

 

[22DASHER]

My chamber length is 1.570 and I get blow lengths of 1.555-1.565. Over 300 of them in my last batch and only a couple went below 1.555. My no-turn neck on the Lapua brass is .254-.255. I have both.

 

[MrMajestic]

Thanks Dasher, what's your neck clearance at .245/.255. I guess I'm asking for your loaded diameter with fire formed Lapua Blue box.

 

[22DASHER]

.251-.2515

 

[SRM]

Interesting!
I must be doing something wrong. Blue box new at 6mm is 1.555". Necked down grew to 1.558-1.56". Neck turn to .013" for a .252 chamber. Fired I got 1.540-1.545" . Kinda a bummer as my chamber is 1.570.

 

[radiusdav]

Can anyone give me info on were to order a 22 Dasher reamer?

 

[22DASHER]

Can anyone give me info on were to order a 22 Dasher reamer?

Call JGS.

 

[radiusdav]

I want to shoot 88 ELD-M, should I get a 105 freebore?

 

[22DASHER]

With the 88’s I would go .125

 

[radiusdav]

Thanks 22DASHER

 

[radiusdav]

With the 88’s I would go .125

Thanks 22Dasher

 

[Evan]

I want to shoot 88 ELD-M, should I get a 105 freebore?

Don't go too fast on twist. My 22BR with a 5R 7 twist blows up all the 90gn bullets. My 22BR is 100 freebore, and it's a good place to be.

 

[RussellJ]

Got my Bartlein barrel from Shiraz and working with Kiff on my reamer. For Lapua Blue box he has the case length at 1.535" which seems to be correct for the 6mm however I read here that the blow length for the .22 is 1.565". .22 Dasher shooters please confirm.
He also included a Norma print at 1.600" and .253 neck diameter. He has the Lapua at .252, sound correct.

Here is a copy of my reamer print, please see the note in the lower left hand corner. I'm shooting the Hornady 53grn V-Max bullets. My fired brass OAL is 1.540"

 

[Pinkes]

freebore for a 22 dasher with 80gr ELDM?

 

[SealT5]

Call JGS. My 22dasher has a 100fb and shoots the 80.5 Berger lights out

Joe S

 

[Pinkes]

Call JGS. My 22dasher has a 100fb and shoots the 80.5 Berger lights out

Joe S


View attachment 1138371

thanks!!