Hi all,
I have been busier than a one armed paper hanger just trying to survive this year. But I do have some data for you all on the 190 Gr Barnes bullets and Leverevolution powders out of my 1899 A with a 26" barrel. CCI 200 primers and PPU brass was used in all tests. Usual disclaimer, I have no idea what I am doing so kids, don't you dare try my loads at home!
32 grains of LVR gave an average velocity of 2,157 fps. Average measured primer backing was 0.009" in this rifle.
33 grains of LVR gave an average velocity of 2,169 fps. Average measured primer backing was 0.006" in this rifle.
Some interesting comparisons:
I also fired 180 grain Sierra FN hunters in this rifle with both 33 grains of LVR and 28 grains of 3031.
33 grains of LVR averaged 2,122 fpts, primer backing was 0.009". Not sure why this was slower than the Barnes 190 gr bullets at the same powder charge.
28 grains of 3031 averaged 1,963 fps, primer backing was 0.008". Brass was visibly imprinted by the milling marks in the chamber, where the LVR was not. Looks like LVR gives more V at lower P, which is how it is advertised.
About primer backing. It is obviously specific to each rifle. Here is some data from shooting 150 grain Hornady RN bullets in 4 different rifles with different barrel lengths. Anyone know how much primer backing is considered safe? These do not flatten, so I assume these loads are actually too light to seat the case against the bolt.
Rifle Primer Backing
1899A 0.006
1895 0.005
Saddle 0.008
SRC 0.005
These were the Velocities for 36 gr (I think - don't have my note book handy) LVR and 33.5 gr IMR 4895 in these rifles.
Velocity Summary, 150 GR RN
Rifle Barrel V (LVR) V (4895) Difference
1899A 26" 2347 2232 116
1895 24" 2315 2172 144
Saddle 22" 2286 2187 99
SRC 20" 2206 2127 79
The 150 grain bullets hit too high with factory buckhorn sights on 1899's. The 180's and 190's are pretty close to point of aim at 200 yds.
