I have been loading for my 6.5 Grendel for a bit now. I have only focused on hunting cartridges though. So, as I have been ignoring this rifle for way to long. I want to start punching paper with her. With the appropriate bullets. Going to start off with some Hornady 123 Grainers. My question is this, as I am fairly new to the AR Platform precision game(all of my long distance precision guns are bolt action). As a starting point, what as general rule of thumb for a jump to the lands in an AR Chasis? And yes, I know that every gun has it's own fingerprint. Just looking for a comfortable starting point...
Starting Point For Lands "Jump" on an AR15/6.5 Grendel
- Thread starter RLinNH
- Start date
General rule is seat to mag length and then reduce COL to find precision.
As mentioned, magazine length will probably force your OAL. If you have some ability, you can get a PRI 6.8 magazine and cut and file the front so you can increase your ability to run a longer OAL. That may not be necessary however.
I have been shooting and loading the Grendel for many years and the 123's can shoot very well. I will put a 120 SMK or my favorite Grendel bullet of all, a Berger 120 BT against any 123 for accuracy. The 120's mentioned will allow you to get much closer to the lands which will give you more options in seating depth.
I do not find a Grendel hard to tune. A 120 or 123 grain bullet, 450 primer (or Wolf SRM) and 8208, LeverRevolution, or 2520 with a close to maximum load, and .025"ish off of lands should show something decent.
Just my experience but the 2 120 grain bullets I mentioned have always been more accurate than any others. That said, I have good luck with 107/108 grain bullets (exclusively using 8208) and 123 SMK or Scenar also shoot well. Not hard to find a good load IMO.
I have been shooting and loading the Grendel for many years and the 123's can shoot very well. I will put a 120 SMK or my favorite Grendel bullet of all, a Berger 120 BT against any 123 for accuracy. The 120's mentioned will allow you to get much closer to the lands which will give you more options in seating depth.
I do not find a Grendel hard to tune. A 120 or 123 grain bullet, 450 primer (or Wolf SRM) and 8208, LeverRevolution, or 2520 with a close to maximum load, and .025"ish off of lands should show something decent.
Just my experience but the 2 120 grain bullets I mentioned have always been more accurate than any others. That said, I have good luck with 107/108 grain bullets (exclusively using 8208) and 123 SMK or Scenar also shoot well. Not hard to find a good load IMO.
