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1/22/2020 12:12:56 PM
Posted: 12/31/2006 9:02:03 PM EST
[Last Edit: 1/1/2007 12:22:16 AM EST by MuNgEr]

I've been researching for sometime and have decided to purchase a Rock River Varmint A4.

Im looking at either an 18" or a 20" barrel. I wanted to get some opinions on any significant pro's/cons between the two?

Many thanks,

Link Posted: 1/1/2007 3:16:55 AM EST
First off welcome, MuNgEr

with respect to to your barrel choice, it would depend on the type of shooting you plan for your rifle.

Most members here - based on 1,000's who have offered opinions - say the shorter barrel of any two options is best. You will not sacrifice accuracy, reliability, or performance of any kind with the shorter, but you will save weight, and have a rifle that is fractionally more maneuverable.

In fact, the 16" is the overwhelming favorite among new rifles, but if you are looking for a true Varmiter, you may appreciate the added reach of the longer tube.

Best advice?

Spend a few days here reading the various forums on what guys are using and look at what they experienced.

It could end up saving you hundreds and almost surely will help clarify your options

Good luck and keep us posted on your rifle.
Link Posted: 1/1/2007 3:34:47 AM EST
Well it seems some thread are saying if you wanna shoot a AR alot you better by several barrels as they dont seem to last but about 3000-9000 rounds and that comes pretty soon if you shoot more then 250 rounds each time you go out.
Link Posted: 1/1/2007 11:41:06 AM EST
Many thanks on the responses!
Link Posted: 1/1/2007 12:33:03 PM EST
[Last Edit: 1/1/2007 12:51:40 PM EST by lawdawg430]
My first 20' inch barrel was a varminter,and I felt it could really reach out there and touch the targets. Carrying that rifle slung to my back I was always knocking into things accidentally - I found it to be more of a hassle than it was worth, essentially, a 16" is what I have now and its a lot easier to carry slung to the back. Depending on what your primary use will be. If you are going to be mobile go with the 16", otherwise I'd go 20" bc the more barrel you have the greater bullet fragmentation you get. More target damage results from fragmentation than without. That's one reason varminter barrels are longer. Hope this helps. I can't speak to 18" barrels, but I bet there is not much difference regarding fragmentation.


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