I have been testing a Hybrid 100V load in my brother's .280 REM (along with testing a load using Re19). The rifle is a 10 year old Remington M700 Stainless with a 22" barrel in a Remington synthetic stock.
Components in both tests use the Combined Technology 140 grain Ballistic Silvertip Bullet, R-P cases - same lot (new on the Re19 test, once fired on the H100V test). Primers are FED 210 w/57.0 grains (MAX) Re19 on the first test, and REM 9 1/2 with 54.0 grains (MAX) H100V on the second test. Both loads where worked up to their respective book maximums (Nosler #5 data for the Re19 load and the Hodgdon Reload Center on-line data for the H100V load). In both loads the maximum load proved to be the most accurate load in my brothers rifle.
The results are:
FED 210, 140 BST (COL 3.262"), R-P case, 57.0 Re19, three shot group, shot on 6-18-08 at 85F, BetaMaster Chrony at 10', 2751 avg fps, 3/4" group. (Nosler's #5 data achieved 3152 fps in a 26" barrel).
R-P 9 1/2, 140 BST (COL 3.262"), R-P case, 54.0 H100V, three shot group, shot at 8-8-08 at 81F, BetaMaster Chrony at 10', 2887 avg fps, 1/2" group. (Hodgdon's Data Center achieved 2847 fps in a 24" barrel).
I have another test batch made up using three different COL for each powder - that will be our final test. The COL of our first load was chosen to match the factory Winchester Supreme load that shot fairly well in his rifle at 2926 avg fps.
Ps. One interesting thing I noticed with the Nosler Reloder 19 data is that five other data sources (the Alliant website, Hornady 6, Lyman 48, Speer 14, Sierra V) only achieve 2800 fps to 2989 fps with 56-58 grains of Re19 in 22"-24" barrels using 139 or 140 grain cup and core bullets. I don't believe any hunting rifle can achieve Nosler's published velocity with their Re19 load. Even accounting for 4" less barrel length (between their test equipment and our rifle) that only explains an approximately 100 fps velocity loss - that still leaves 300 fps unaccounted for. I think there is some wishful thinking in the Nosler data. All the other data seems attainable or fairly accurate and matches my test results. Anyone here achieve (or come fairly close) to the Nosler velocities using their data?
Last edited by Odessa; 10/02/08.
