12-18-2011, 01:33 AM
Pardon me not posting a separate introduction, but I figure I can kill two birds with one stone. The Grendel chambering has piqued my interest; I have a couple of 5.56 rifles, one 5.45, and a .25/06. I'm considering this caliber as the happy medium to my current ones.
I've been doing a lot of reading about the Grendel, and I *think* I know what I'd want-a 20" barrel with probably standard profile. I'm not seeing a big selection of assembled uppers yet, but I'm sure that will improve with the recent SAAMI sanctioning. But I'm also considering the option of a custom assembly.
Given that, I have a couple of questions. For a 20" barrel and the range of commercial ammunition bullet weights, what is the best compromise twist-I've seen a bit of variation within a given length. Conversely, there are some advocates of progressive twist on shorter barrels in 5.56. Has anyone here an opinion or experience with (say) a 16" barrel in 6.5 rifled this way?
Thanks in advance for any help.
I've been doing a lot of reading about the Grendel, and I *think* I know what I'd want-a 20" barrel with probably standard profile. I'm not seeing a big selection of assembled uppers yet, but I'm sure that will improve with the recent SAAMI sanctioning. But I'm also considering the option of a custom assembly.
Given that, I have a couple of questions. For a 20" barrel and the range of commercial ammunition bullet weights, what is the best compromise twist-I've seen a bit of variation within a given length. Conversely, there are some advocates of progressive twist on shorter barrels in 5.56. Has anyone here an opinion or experience with (say) a 16" barrel in 6.5 rifled this way?
Thanks in advance for any help.