1-8 twist for 55 grain .20 cal Bergers?

[long40shot]

What about a 204 pushing the 55s? Any good?

 

[Woollybugger]

What about a 204 pushing the 55s? Any good?

Maybe in a single shot, 8 twist long Freebore. Tough to get them to fit in a mag with that bullet above the neck shoulder junction.
If I were building another gun for the 55 berger it would be a 20 ppc 20 grendel, 20 BR or 20 GT.

 

[long40shot]

Maybe in a single shot, 8 twist long Freebore. Tough to get them to fit in a mag with that bullet above the neck shoulder junction.
If I were building another gun for the 55 berger it would be a 20 ppc 20 grendel, 20 BR or 20 GT.

I've got a 6ppc that is probably gonna need a barrel at some point. I have decided that a 20ppc is the next project.

 

[Gabe22BR]

I've got a 6ppc that is probably gonna need a barrel at some point. I have decided that a 20ppc is the next project.

I got a 1-9 at the smith now- 20PPCAI - hope to get the 55 to 3300, maybe…. plan is use the 40BIB…3800

 

[Dstaffk5]

9 in my 20 br shoots bugholes

 

[lgwatson]

View attachment 16840981-9 Kreiger 600yd BR
This is the 2nd time it’s proved it’s self-
20BRAI

Nice shooting!

 

[lgwatson]

Those of you who are shooting the 55gr Bergers out of a 20 caliber cartridge, what twist rate is working for you? Berger recommends 1-7 or faster, that limits barrel manufacturers some what. Most offer a 1-8 but not all offer anything faster. Lilja and PacNor do 1-7s but…..

I want to use a Mueller for this build but 1-8 is his fastest twist.

This is for a 20GT build by the way.

Any input welcome.

I have a 20 Practical with a Lothar-Walther 9 twist. Shoots very tight with 55 Berger VBTs. Most of my shooting is 3400 feet and higher.

 

[searcher]

1-9 all the way. I had a conversation with the late Stan Taylor and he told me he tested a 8, 8.5 and 9 and the 9 was the best.
This is all the proof I need with my 9, this is out of a gun that is nothing special, untouched 700, Boyds Thumbhole stock and 14oz trigger and a barrel I made.

Good job on that barrel!!

 

[Evan]

I got a 1-9 at the smith now- 20PPCAI - hope to get the 55 to 3300, maybe…. plan is use the 40BIB…3800

How long a barrel? I would be shocked if you didn’t make it to 3300. My 20 Vartarg has a 26” barrel and goes 3150fps without damaging the brass. Your PPC will have about twice the capacity.