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View attachment 380690View attachment 3806913rd barrel for this rig. Bartlein 1-7.7” 5R@22”
.169 free bore. In most of my testing with Berger Hybrids (in all calibers), I've found them to be not jump sensitive. They also have worked very well for killing big game animals.Standard SAAMI chamber or is it setup with a little less freebore to keep 105s closer to lands?
Mmm... obscure quarterbore






Do you tumble them together and then hand sort by headstamp?Decapped and tumbled a bunch of brass. 223AI, 257AI, 6.5CM, 7BR, 22-250View attachment 384722
Yep, that is why they are all pretty distinctive. Don't want to do that with similar cases. Each cartridge was a single headstamp also.Do you tumble them together and then hand sort by headstamp?
What speed are you getting with the 77TMK in the 22-250?Loaded up 30 125 HHT for my 6.5 PRC. Used 10 to verify speeds and drops - somehow picked up another 30 fps on the third firing on these brass. SD/ED shrunk as well. I’ve got verified drops out to 700, but won’t hunt that far out.
Also ran a ladder to find pressure signs in the .22-250 using 77 gr TMK and H4350.
Hit pressure at 37.0 gr of H4350 and had 2990 on the chrono.What speed are you getting with the 77TMK in the 22-250?