257 BLACKBIRD (250-7 Blaser) for 131 ACE (0.340 G7 @ 3400-3500+ fps)

highdrum

Well-Known Member
Joined
Nov 30, 2008
Messages
3,060
Location
Montana
I have not measured my fired cases, but I believe it is 3-4grains more than unfired. 500 pieces will last me a long time for what I do. Will be talking with T/S after Christmas about a 6.5 version. Extremely happy with my 7mm.
Your 7 blaser Rogue is pretty much a 7lrm(86-87gr capacity) a great place to be for a 7mm, right about 7wby area as well. Now that 7lrm brass made by adg for gunwerks is available, I'll likely build another.
 

Bghunter338

Well-Known Member
Joined
Jun 1, 2019
Messages
1,239
Location
Wilder, Idaho
Any updates from anyone? Anyone else running one? What velocities are you getting?
Yes, I am. Right now I'm running the 121 hh at 3440 with imr 7828. We took three deer this year with it from 116 to 230 yards. I have a load for the 135 burgers as well with retumbo at 3200 or 3300 I can't remember I will have to look. Love this round.
 
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