Quote History Originally Posted By heat762:
No but the 107 SMKs are tack drivers…I would expect the 120s to be as well. No clue on Tac. H322 is my go to powder for Grendel ….8208 second choice. Let us know how it works out!
View Quote
Pretty much this. The 107 SMK HPBT is the best kept secret in 6.5mm. The Wolf Steel projectile shape was stolen from this, because this little bullet has a long range BC far beyond its weight class. It's my favorite Grendel Bullet. As to the 120 SMK, I run those too, and have to say, it too is a remarkably fantastic bullet.
A couple secrets to be aware with Grendel.
1) Most AR chambers throats are short. Pay attention, as at times mag-length loads will be stuck in the lands and shoot like shit. Adjustments to seating depth (i.e. making shorter than mag length), can at times turn a terrible load into a tack driver.
2) Modern metallurgy must have improved, or something - because Grendels can take a lot more pressure than what's originally published these days, even the AR's - though as always, you're on your own if you do choose to exceed book-max!
For powders, personally I've grown to quite like ARComp in Grendel. To my surprise, good old ball TAC is probably the best powder I've run yet in Grendel. Gives best velocity and some of my best accuracy. I sometimes run 8208, but that's a powder designed to burn best at a higher pressure than you generally will get in a Grendel, and has a reputation of spiking up towards that higher pressure, when run in a Grendel - quickly.