R33 in my 7mm Rem Mag is "the berries",

preacher · Jul 18, 2015

Every load/charge I tried in my 7mm Rem Mag with R33/Sierra 175 SBT was way under an inch. I also did not see any drastic spikes in pressure with this powder. I can't tell you how much it "pleased my soul" to finally get over 3000 fps with a 175gr bullet in the 7mm Rem Mag. Best I ever got in the past was around 2800 or so. Yes, I have a 26" bbl but this R33 is way slower than H870, and much, much cleaner burning.

DrMike · Jul 18, 2015

That is good velocity and most intriguing. It is still not approved for Canada. If it ever makes it this far north, you may be assured that I will be testing it.

JD338 · Jul 18, 2015

That's great speed for a 175 gr bullet in a 7mm Rem Mag.
How was the accuracy?

JD338

SJB358 · Jul 18, 2015

That's really good speed. Wonder how that stuff would work in my Mashburn? Betting I'd get a clean 3100 or so.... If the accuracy is there that might be something to look at.

JD338 · Jul 18, 2015

SJB358":27jdef78 said:
That's really good speed. Wonder how that stuff would work in my Mashburn? Betting I'd get a clean 3100 or so.... If the accuracy is there that might be something to look at.

I agree Scotty. Your 7mm Mashburn would be a flat liner.

JD338

preacher · Jul 18, 2015

I ended up around .60"! This was for three rounds, but gosh, it just about did that with every charge! Nothing bigger than .80"! This was in WW cases BTW. I figured if the barrel was going to shoot it would show up with the Sierra's. Suhweeet!