Rock River Varmint - Page 2
Firearm & Gun Forum - FireArmsTalk.com > Long Guns > Auto & Semi-Auto Discussion > AR-15 Discussion > Rock River Varmint

Reply
 
LinkBack Thread Tools Display Modes
Old 01-24-2012, 06:21 PM   #11
Feedback Score: 0 reviews
 
humboldtshooter's Avatar
 
Join Date: Nov 2011
Posts: 145
Default

Also, I've seen some info on the heavy barrel predator pursuits by RRA. Those look pretty good. About 1lb lighter than the BB

__________________
humboldtshooter is offline  
 
Reply With Quote
Old 01-24-2012, 07:07 PM   #12
Feedback Score: 0 reviews
 
Join Date: Aug 2011
Posts: 2,283
Liked 248 Times on 196 Posts
Likes Given: 22

Default

This RRA is going to be mainly a bench or fixed position rifle right. Going from a 18" to a 24" barrel you could be giveing up around 240fps. I do know that a 68gr hpbt wolf out of a 20 inch barrel and my 16" is lossing 160fps. If your going to want to shoot 500 yards buy the 24" barrel. Don't cut your velocity short. The bullet weight your useing will never live up to the accuracy that the rifle can give ether with a 1-8 twist but will shoot it well enought to enjoy. I have watched a couple guys checking new handloads against there control round , a federal 69gr match that would shoot .300 at 100 yards. Both rifles were 24"RRA varment

__________________
hardluk1 is offline  
 
Reply With Quote
Old 01-24-2012, 07:42 PM   #13
Feedback Score: 0 reviews
 
AgentTikki's Avatar
 
Join Date: Oct 2010
Location: City of Lost Angels, Kommifornia
Posts: 3,445
Liked 335 Times on 264 Posts
Likes Given: 51

Default

Think of it this way. Imagine if you will that your barrel is made out of plastic. The shorter it is, the harder it is to flex. The longer it is, the easier it is to flex. If you have a 24" barrel it will flex more when you shoot it. If it were 7" long it won't flex much at all. So for longer barrels you need a thicker barrel to keep it from flexing. Thicker barrels mean heavier barrels. Really heavy barrels will flex your upper reciever. Heavier barrels take longer to heat up, conversely heavier barrels take longer to cool down. Hot barrels flex more. More flex equals less precision.

if you plan on actually going out and schlepping it, you need to balance weight and overall barrel length.

if you want a long range benchrest shooting, weight isn't all that important.

__________________
Assumption is the mother of all ****ups.
Know what you know, Know what you don't know. -Paul Pedzolt
"Jack of all trades, master of none, though oftentimes better than master of one" -Mynshul
AgentTikki is offline  
 
Reply With Quote
Old 01-24-2012, 08:31 PM   #14
Feedback Score: 0 reviews
 
humboldtshooter's Avatar
 
Join Date: Nov 2011
Posts: 145
Default

It will mostly be a bench gun, so weight isn't a factor. But like I said before my local range has a 200 yd max range. I'm thinking I don't need all that barrel on the gun.

__________________
humboldtshooter is offline  
 
Reply With Quote
Old 01-24-2012, 08:52 PM   #15
Feedback Score: 0 reviews
 
AgentTikki's Avatar
 
Join Date: Oct 2010
Location: City of Lost Angels, Kommifornia
Posts: 3,445
Liked 335 Times on 264 Posts
Likes Given: 51

Default

I see that you really like RRA, have you considered any other builder/manufacturers?

__________________
Assumption is the mother of all ****ups.
Know what you know, Know what you don't know. -Paul Pedzolt
"Jack of all trades, master of none, though oftentimes better than master of one" -Mynshul
AgentTikki is offline  
 
Reply With Quote
Old 01-25-2012, 12:59 AM   #16
Feedback Score: 0 reviews
 
humboldtshooter's Avatar
 
Join Date: Nov 2011
Posts: 145
Default

Quote:
Originally Posted by AgentTikki
I see that you really like RRA, have you considered any other builder/manufacturers?
I've looked into a few others, like CMMG and DPMS. I like the .223 Wylde chamber and the 1:8 twist. Do you have another recommendation?
__________________
humboldtshooter is offline  
 
Reply With Quote
Old 01-25-2012, 01:00 AM   #17
Feedback Score: 0 reviews
 
humboldtshooter's Avatar
 
Join Date: Nov 2011
Posts: 145
Default

In pretty stuck on a bull barrel, but will def consider suggestions.

__________________
humboldtshooter is offline  
 
Reply With Quote
Old 01-25-2012, 01:22 AM   #18
Feedback Score: 0 reviews
 
ShagNasty1001's Avatar
 
Join Date: Oct 2011
Posts: 1,526
Liked 460 Times on 267 Posts
Likes Given: 22

Default

Here's my 20" BB in a 1-8 twist ratio. I love it, rather heavy but weight isn't a big factor for me

image-705514032.jpg  
__________________
ShagNasty1001 is offline  
 
Reply With Quote
Old 01-25-2012, 02:01 AM   #19
Feedback Score: 0 reviews
 
Gloves's Avatar
 
Join Date: Apr 2010
Location: Fremont,CA
Posts: 483
Liked 21 Times on 16 Posts
Likes Given: 18

Default

I have a rifle on order from POF in 20"
I like the classic 20" (M16 length) rather than M4 16"
I feel like you get more bang out of the same bullet.
The maybe only 4" (25%) more but still hoping it
makes the bullet fly a little more straight, fly a little faster
and hit harder at distance.

But the trade off is bulk and weight. With that stock
i was say you are obligated to go at least 18" IMO =)

__________________

- Gloves
"When the situation gets too hot, put Gloves on"
or
"If the gun is cold to the touch, put Gloves on" -RustyShackleford101

Gloves is offline  
 
Reply With Quote
Old 01-25-2012, 02:27 AM   #20
Feedback Score: 0 reviews
 
humboldtshooter's Avatar
 
Join Date: Nov 2011
Posts: 145
Default

Quote:
Originally Posted by ShagNasty1001
Here's my 20" BB in a 1-8 twist ratio. I love it, rather heavy but weight isn't a big factor for me
That's a nice rifle. I'm thinking if length doesn't effect accuracy then I will more than likely go 20", just for looks if nothing else.
__________________
humboldtshooter is offline  
 
Reply With Quote
Reply

Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Firearms Forum Replies Last Post
Rock River Arms LAR 8 bigjimbo308 Gunsmithing Forum 2 01-18-2011 02:39 AM
WTS Rock River 9mm CAR A4 Rifle michiana Sponsor Display 0 01-13-2010 10:59 PM
Rock River Arms, A+ twotwothree AR-15 Discussion 4 12-19-2009 01:00 PM
rock river vs. S&W M&P shoez AR-15 Discussion 11 08-14-2008 02:08 PM
Rock River .308 jleeper719 Auto & Semi-Auto Discussion 1 08-10-2007 09:32 PM