Northridge
Gold $$ Contributor
Are the roomers true, are the 195g Berger hybrid on the open market? .284 caliber
And if so b.c. Of bullet and who has them in stock.
Shawn
And if so b.c. Of bullet and who has them in stock.
Shawn
Laurie said:Good news!
What twist rate do they need for 1.5 Sg values at say 2,700-2,900 fps, Bryan?
I asked Bartlein the same question and this was their answer.
By our calculations the 195 will need an absolute minimum of 8.50 @ 2800 fps. We are recommending 8.25
I have two ordered with 1-8.2 twists. [Elwood]
gstaylorg said:Bryan Litz said:Some have been made and are being tested. Quantities have not been shipped for distribution yet. We're close, within weeks.
Measured Performance:
G1 BC = 0.755 (Average from 3000 to 1500 fps)
G7 BC = 0.387 (Valid for all speeds)
-Bryan
This is just sickening. Any possibility I can wrap something around them and shoot them out of my .308 F-TR guns?
Laurie said:I asked Bartlein the same question and this was their answer.
By our calculations the 195 will need an absolute minimum of 8.50 @ 2800 fps. We are recommending 8.25
I have two ordered with 1-8.2 twists. [Elwood]
Thanks for that Ian. (There will likely be a wave of rebarrellings and panic barrel orders next winter then.)
[br]ShootDots said:Bryan, here is a question for you. The 180 Hybrid needs at least a .200 freebore (more is better) and the 180 VLD's need at least a .220 freebore, what would you expect as the MINIMUM freebore necessary for the 195's? Thanks..
Steve Blair said:[br]ShootDots said:Bryan, here is a question for you. The 180 Hybrid needs at least a .200 freebore (more is better) and the 180 VLD's need at least a .220 freebore, what would you expect as the MINIMUM freebore necessary for the 195's? Thanks..
Ben,
When Bryan first released the bullet drawing, I calculated a .233" freebore would allow sufficient room to jump. My 7-270 WSM reamer is made with that freebore. I'm also interested to see what Bryan has been using or if the bullet has changed.
gstaylorg said:Bryan Litz said:Some have been made and are being tested. Quantities have not been shipped for distribution yet. We're close, within weeks.
Measured Performance:
G1 BC = 0.755 (Average from 3000 to 1500 fps)
G7 BC = 0.387 (Valid for all speeds)
-Bryan
This is just sickening. Any possibility I can wrap something around them and shoot them out of my .308 F-TR guns?
Laurie said:Ha! Ha! ..... I've never seen saboted ammo mentioned in FTR rulesgstaylorg said:This is just sickening. Any possibility I can wrap something around them and shoot them out of my .308 F-TR guns?
I would think that the chamber size requirement would rule out saboted ammo, i.e. 308 bore sizeLaurie said:Ha! Ha! ..... I've never seen saboted ammo mentioned in FTR rules, but I bet it would be banned tout suite if somebody tried it and it actually worked well! ...
steve_podleski said:I would think that the chamber size requirement would rule out saboted ammo, i.e. 308 bore size