11-12-2014, 04:56 AM
Grendel is optimized for the AR15 receiver with its fixed magazine length (OAL).
If your Mod7 receiver is a short-action then you are not limited like the Grendel to the AR15. You can have all sorts;
22/250
243 WIN
260 REM
6.5*47
6.5 Creedmore
270WSM
7mm-08
300WSM
308 WIN
338 Federal
Even 6*284 and 6.5*284 is possible in a short-action with some loading/unloading issues to overcome.
The Creedmore typically uses 40% more powder than a Grendel for the same weight projectile (40gr vs. 28gr).
In the 6.5/.264" caliber, unless recoil and powder costs are bigger issues than range, trajectory and terminal effect then I would not be limiting myself to the Grendel in a bolt gun. There are three popular 6.5mm cartridges that you see used at the Sporting Rifle Matches. They are pretty close to each other in case capacity, recoil and ballistics;
I have a 6.5*47 in a Rem 700 short-action, using 24" barrels. If I had my time over I might go Creedmore but only for the extra grain or two of powder, nothing else.
All three calibres are faster, further and flatter than a Grendel. The 6.5*47 uses small rifle primers. The 260Rem and Creedmore use large rifle primers. Recoil for all three is between 308 and 223 at about the 2/3 mark, so closer to 308. Brass and ammo is probably cheaper/available over your way for 260Rem but you would know.
Quick comparison between Grendel and Creedmore;
http://www.nosler.com/nosler-load-data/65-creedmoor/
http://www.nosler.com/nosler-load-data/65-grendel/
If your Mod7 receiver is a short-action then you are not limited like the Grendel to the AR15. You can have all sorts;
22/250
243 WIN
260 REM
6.5*47
6.5 Creedmore
270WSM
7mm-08
300WSM
308 WIN
338 Federal
Even 6*284 and 6.5*284 is possible in a short-action with some loading/unloading issues to overcome.
The Creedmore typically uses 40% more powder than a Grendel for the same weight projectile (40gr vs. 28gr).
In the 6.5/.264" caliber, unless recoil and powder costs are bigger issues than range, trajectory and terminal effect then I would not be limiting myself to the Grendel in a bolt gun. There are three popular 6.5mm cartridges that you see used at the Sporting Rifle Matches. They are pretty close to each other in case capacity, recoil and ballistics;
- the 260Rem
- the 6.5 Creedmore.
- and 6.5*47
I have a 6.5*47 in a Rem 700 short-action, using 24" barrels. If I had my time over I might go Creedmore but only for the extra grain or two of powder, nothing else.
All three calibres are faster, further and flatter than a Grendel. The 6.5*47 uses small rifle primers. The 260Rem and Creedmore use large rifle primers. Recoil for all three is between 308 and 223 at about the 2/3 mark, so closer to 308. Brass and ammo is probably cheaper/available over your way for 260Rem but you would know.
Quick comparison between Grendel and Creedmore;
http://www.nosler.com/nosler-load-data/65-creedmoor/
http://www.nosler.com/nosler-load-data/65-grendel/