Yeah Baby !! 204 DRT time

[Shotafterdark]

The PP2000MR at 33 Gr held a consistent 3650 to 3667 fps with no signs of pressure
groups are excellent as I'd come to expect

 

[Shotafterdark]

Well my phone rang this morning and it was Don Unmussig calling me,,
To confirm what I wanted and to tell me that he had not sent out the once that I requested before Christmas he wanted to wait till after the holidays.

Either way it sounds like a bunch of the guys on this forum jumped on and sent in some orders for him as well so he does appreciate that

I asked him to make me 1000 63 grain
500 60 gr
and he is sending me 300 50 gr that he has on hand .

Then I told him I want him to make me 4 barrels
Let's just say I was beyond intrigued with my conversation with him about his rifling process and I definitely want to check out his low pressure low friction rifling.

Ill get a couple 22 and 20 cal in 8 twist .
The only thing he cannot do is contour them so they are going to be straight 1 1/4 blanks

 

[Shotafterdark]

I love this forum there's so many great guys on it and I had one member contact me and he is going to make me a control bridge for Solus chassis for the fastback..

its 3d printed ...Ill put a pic rail on it and maybe get motivated to make one out of a block of aluminum
in the future

 

[1lessdog]

fast enough that I worry about the Berger 55's remaining intact
3800 fps its the 7 twist that concerns me

You push them much harder and there coming apart. The 40 gr Vmax samething. If you were shooting them in a 13 or 14 or even a 15 twist you would get more speed and the bullets will hold together with no pressure or problems. I pushed 40 gr Vmax thru a 220 Swift at 4235fps and no sign of pressure and grouped really good

 

[aussiepowderburner]

I wonder why 7 twist too? Surely at these velocities an 8 twist would be more than sufficient?
I have run the heavy 20cal Berger’s at 3300 in standard 204 Ruger with 8 twist fine?

 

[Shotafterdark]

I wonder why 7 twist too? Surely at these velocities an 8 twist would be more than sufficient?
I have run the heavy 20cal Berger’s at 3300 in standard 204 Ruger with 8 twist fine?

When Don gets me my 63 grain pills here , then you will see why a 7 twist was selected