Huntnful
Well-Known Member
Wow!! Those are legit velocities!! What length barrels?Not really pertaining to the cartridges mentioned but when I put new barrel on my 300 RUM I started out with N570. Collected a fair amount among with N,565. I had always used Retumbo. Was awesome in other barrel. I haven't even tried it yet in new barrel ! N570 was so accurate and low ES and SD. I'm pushing 215 Bergers at 3240 fps. Below pressure. This year I'm going to try Retumbo. Maybe a couple others. H-1000 was good with 181 Hammer. 3400 plus fps. in. Bartlien barrel. Going from memory without looking at notes . I don't care how dirty N570 is. All are dirty. Works for me.
Potential velocities I was banking on were in a 26" barrel
3450fps with 181 hammer
3300fps with 199 hammer
3200fps with 215 Berger
3100fps with 230 Berger
I have all these bullets on hand and lots of powder to test.
The 181 wins in impact velocity and drop out to 1000 yards. Obviously the Berger's carry more energy and 10% less wind drift though.