6.5 prc seekins havak ii 124 hammer hunter

[zr600]

Ok we took out my buddies seekins havak ii 6.5prc. Loaded lapua brass br2 primers, and 124 hammer hunters. The picture is the latter test this was the first 9 rounds down the barrel.

 

[RockyMtnMT]

Looks about right. We have been able to go farther with 210m primers and Bertram brass. Your barrel may still pick up about 70 fps when you get closer to 75 shots. We have hit 3470 fps with the last two Brownings we loaded with that combo. Also were able to get to 64g. The difference here may just be the brass. I know Bertram is tough.

 

[Dmagna]

3450-3500fps is pretty common with this bullet along with the absolute hammer. I got over 3500 with N560, but accuracy was at 3460.

 

[Thebear_78]

I stayed at 58gr in my havak 6.5 PRC. Running right at 3210, steller accuracy and has been a very good killer.

 

[zr600]

This thing shot really well considering every shot was a different charge. We are thinking groups at 58, 58.3, 58.5, 58.8, 59.

 

[Roperboy87]

I would tray 59.3 in 3 shot and see what you es are

 

[zr600]

I would tray 59.3 in 3 shot and see what you es are

Since we had pressure at 60 we were thinking of staying a full grain away. Brass had a smear and heavy bolt lift. What do you think? I have 58-59 loaded for some groups. I use a magneto speed for chrono graph, so I don't usaully chrono while testing groups just on a single shot pressure latter test then after I find some good repeatable groups I'll shoot a string across it.

 

[Roperboy87]

I try determining what speed I want and can get away with them I shot 3 shot sting on the chrono to make sure I get good es and then I start messing alittle with seating if it's not grouping to my liking