I have used both Varget and RL-15 and found them to be almost identical. I do get slightly higher velocities from RL-15 than I do from Varget out of my 700P with all components and charge weights being the same except for the powder.
There's no way you could get me to shoot groups at -30*!hypno said:Big RL-15 guy here. I shoot 44.5gr in my 178 load and it is a hot mother but it shoots good.
Less than 1 minute shift from 90degrees to -30.
thornblom said:Is it possible that the newer RL-15 underwent a change such as some of Hodgdon's extreme powders that caused this powder to be insensitive to temperature changes?
Certain of Hodgdon's powders are now a part of their EXTREME series of powders. 4227, 4895, varget, 4350, 4831 etc, have somehow been changed so that they are not temp sensitive. Possibly some type of coating.SemperFi said:thornblom said:Is it possible that the newer RL-15 underwent a change such as some of Hodgdon's extreme powders that caused this powder to be insensitive to temperature changes?
You mentioned Hodgdon's powders underwent some changes. I'm curious to know what changes they made since I use Hodgdon powder.
Dave:thornblom said:FWIW, I tried the load that M700 listed above and my 700 VSF .308 loves it.
I loaded it like this:
Case: .308 Federal Military (FC 08)
Primer: Factory primed with Feds gold colored 210-GMM primer
Powder: 43.1 grains of RL-15
Bullet: 175 grain SMK (Sireea)
Muzzle Velocity: 2609 ft/sec
1/2" groups at 100 yards, accurate all the way out to 1000 yards. I shot a 12" five shot group at 1000 yards with my rifle. Not as good as a lot of people do, but good for me and a box stock rifle.
Dave (Bubba) Thornblom
I second that,,,, If I am shooting at -30 something is going to die.There's no way you could get me to shoot groups at -30*!