TackDriver284
Handloader
- Feb 13, 2016
- 2,523
- 2,024
Finally pulled the 300 Win Mag from my safe, last time I used it was back in the Spring when I was testing some Ballistic Tips, prior to that, about a year before I tested the 180 Accubonds and both shot very well with RL22. Last week I spoke to a buddy who can put me on a bull nilgai hunt scheduled for tomorrow. So I made some ammo over the weekend using the same load of 74.4 grains of RL22 sparked with a CCI250 Mag primer. I remembered that the velocity was 3175 fps when it was 80 plus degrees when tested the first time. When I tested the exact loads I made, I made sure it was dead on at 100 yards and calibrated for an elevation of 2.5 MOA at 300 yards and it hit half an inch low of the bullseye. To kill time, I set up the chrono and it was a brisk 55 degrees out and the velocity was 3,111 fps. Dang, 65 fps drop in 25 to 30 degree temp change, but it did not have significant affect at 300 yards to worry about. I believe with RL-22, there is a 1.4 to 1.7 fps change for every degree depending on the cartridge. I just can't wait for tomorrow to put a 180 AccuBond into a bull, hopefully recover the bullet. I'm sure the AccuBond will do an excellent job as advertised. I won't be shooting into the shoulders unless its in some heavy brush, and double lung if its out in the open and more likely will exit and may not recover that bullet. The 300 Win Mag has never drawn blood yet since it was built 2 years ago and have been using smaller calibers for deer sized game since. Just pulled out 10 more pieces of twice fired Norma brass and made 10 more rounds for tomorrow, but one is all I need. :mrgreen: Time to sharpen some knives and get the Lem grinder out.
