01 May 2010, 20:45
Snellstrom458 Win Mag load, guess velocity
I have not chronied these loads but would like to hear some estimates.
500 grain Hornady, WW cases, CCI magnum primer, 67, 68, 69, 70, 71 grains of IMR-4895. Rifle has a 24" barrel.
Thanks
02 May 2010, 00:01
Ed ScarboroI am shooting 74.5gr of h4895 with 500gr Hornadys in my CZ with a 25" barrel and it chronoes at 2182mv. I have not tried IMR4895 but it should work just fine.
I have used 74 grains of IMR-4895 with the 500 grain Hornady for 2110 FPS
71.5 IIRC!!! of H 4895 gives me ~2150fps as I recall, but it is erratic in my rifle, with big differences between rounds.
02 May 2010, 07:20
Magnum Hunter174 grains gets me 2160fps out of my CZ.
Snellstrom,
From Quickload:
67 gr = 1970 fps
68 gr = 2000 fps
69 gr = 2027 fps
70 gr = 2056 fps
71 gr = 2084 fps
Reality check:
In my old Vz24 (which had a 24" tube) 72 gr gave 2111 fps (69gr gave 2029 fps). So I am fairly confident these Quickload velocities are close to real.
02 May 2010, 18:21
SnellstromThanks guys very useful information.
About what speeds do people expect out of factory rounds with 500 grain bullets?
Snellstrom,
Factory 500gr loads that I have chronographed from a 24" barrel tend to run around 2040 fps.