I'm debating to build a different upper for the lower I currently have. Right now I have a 20" Windham weaponry varmint barrel on there now. I'm considering the Grendel cartridge hoping to be able to take a larger variety of game and also to be able to hit steel farther. Would it be wise to keep what I have or will this be a big improvement? My other question is about the bear Creek side charging upper with the 7.62x39 bolt. Are there any disadvantages to this and what type of barrels will mate with that bolt? I'm thinking an 18" barrel nothing extremely heavy but not too light either. Thanks
New build. Questions on side charging and bolts.
Collapse
X
-
When you say would it be wise to keep what you have are your referring to just sticking with your current caliber and trying to shoot game and long range steel? What caliber do you have now? I am assuming 5.56/.223.
For the Bear Creek side charger I have 2 of them and love them both. I am running their 7.62x39 bolt with my .125 head spaced barrel. In my opinion the 7.62x39 or type 1 bolt is inferior to the .136 heaspaced or type 2 bolt in design. However there are pros and cons to both. The biggest pro for the 7.62x39 bolt is availability. There have been many times that I have struggled to find a type 2 bolt because they were out of stock. In a perfect world I would say always buy a barrel with an SAAMI chamber and a .136 headspace but I would not and did not let that hinder me from buying a barrel I liked that is running the type 1 bolt.
-
-
Yeah I'm running a 5.56/.223 barrel now. I just didn't know if it would be that much of an advantage to go to the trouble of building a Grendel or just stick with what I got. Right now I just use it for coyotes but thought about maybe hogs mule deer and antelope in the future. I shoot some long range steel targets now to about 400 but someday would like to try to 1000.
What is the difference between the two types of chambers? Is accuracy different or reliability or what?
Comment
-
-
Originally posted by Miner87 View PostYeah I'm running a 5.56/.223 barrel now. I just didn't know if it would be that much of an advantage to go to the trouble of building a Grendel or just stick with what I got. Right now I just use it for coyotes but thought about maybe hogs mule deer and antelope in the future. I shoot some long range steel targets now to about 400 but someday would like to try to 1000.
What is the difference between the two types of chambers? Is accuracy different or reliability or what?
For the Chamber there are many different types from SAAMI to 264LBC, Grendell II, etc. With SAAMI you have a more "standardized" chamber that gives you a little extra assurance that your barrel will like boxed ammo all though there is no guarantees there. Its also easier to find data on this site because so many members have the SAAMI chamber. This is just my opinion though.
Comment
-
-
.223 doesn't register on steel well past 400yds, and hit probability in the wind is lower due to poor BCs.
I shoot them and spot for them a lot side-by-side in my DM courses.
I won't be building any more 5.56 guns in the forseeable future, let's just put it that way.
I have plenty already, and really use them most for CQM from shorter barrels.NRA Basic, Pistol, Rifle, Shotgun, RSO
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
Comment
-
-
Originally posted by LRRPF52 View Post.223 doesn't register on steel well past 400yds, and hit probability in the wind is lower due to poor BCs.
I shoot them and spot for them a lot side-by-side in my DM courses.
I won't be building any more 5.56 guns in the forseeable future, let's just put it that way.
I have plenty already, and really use them most for CQM from shorter barrels.
Comment
-
-
Originally posted by 1911man View PostThats a great point, its all really hard to spot misses with a smaller caliber further out.
In no-wind conditions, you can hear it much better, even out to 600yds and beyond, depending on what barrel, but we rarely have no-wind conditions.
With 6.5 Grendel and 123gr, you get a sound more like a 168gr SMK from the .308, but with better wind drift and half the recoil.
It's very noticeable when you shoot them side-by-side.NRA Basic, Pistol, Rifle, Shotgun, RSO
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
Comment
-
Comment