03-10-2014, 09:16 PM
The 5.45 x 39 mm and the .220 Russian are quite different animals.
I recently converted my Savage Model 16 to .20 Grendel. The only two things one would do beyond starting with a 7.6239 is to install a PPC bolt head and use a 7.62x39 magazine. To date, I have stayed with the single shot option using the Sharp Shooter Supply "Fred Sled" insert. (http://ammoguide.com/?catid=569).
Going from .20 Grendel to 6.5 Grendel in that rifle for me is now simply a barrel swap!
- 5.45x39 base dia = 0.394" (http://ammoguide.com/?catid=146)
- .220 Russian base dia = .443 (like Grendel) (http://ammoguide.com/?catid=569)
I recently converted my Savage Model 16 to .20 Grendel. The only two things one would do beyond starting with a 7.6239 is to install a PPC bolt head and use a 7.62x39 magazine. To date, I have stayed with the single shot option using the Sharp Shooter Supply "Fred Sled" insert. (http://ammoguide.com/?catid=569).
Going from .20 Grendel to 6.5 Grendel in that rifle for me is now simply a barrel swap!