From chrome moly to chrome lined

[Smoove9]

I got my RRA ENtry Tactical with the chrome moly barrel. IF i want it chrome lined can i just send it back to RRA?? CAn i get it chrome lined by anyone else? Is it possible? What would the price be?

[Delta-9]

I am going to take a guess here and say that it needs to be done from the factory and can't be done after its been shot. If you haven't shot it yet you could return it, pay a restocking fee (maybe) and get a replacement the way you really want it.

Your other option would be to just buy a barrel and have the new barrel installed (or do it yourself) and sell the chrome-moly barrel.

[richhermes]

What is the difference between Chorme moly and chrome lined?

Pros and Cons?

[RMTactical]

Originally posted by richhermes
What is the difference between Chorme moly and chrome lined?

Pros and Cons?

A chrome moly barrel can be chrome lined but doesn't have to be. They are different things.

Chrome lining increases reliability, ease of maintenance, and longevity. The downside is an ever so slight decrease in accuracy and a chrome lined barrel will usually run an extra $30.

Some say it actually increases velocity as well (although if that is the case, it is probably insignificant).

I prefer chrome lining, and unless you are building a match rifle and attempting to tighten your groups as much as possible, chrome is the way to go.

[glock19_fan]

Originally posted by richhermes
What is the difference between Chorme moly and chrome lined?

Pros and Cons?
Chorme moly: Steel that has been alloyed with small amounts of Chromium and Molybdenum.

[richhermes]

Originally posted by glock19_fan
Chorme moly: Steel that has been alloyed with small amounts of Chromium and Molybdenum.

OK, and how does that effect the performance of an AR15 barrel?

[Laxjedi1]

Along these same lives...I see that RRA also offers a stainless steel barrel? What are the pro's and con's of these?

[glock19_fan]

Originally posted by richhermes
OK, and how does that effect the performance of an AR15 barrel? I'm not an expert, but here is what I found on the web:

Arguably the most distinctive feature of a rifle is its barrel. Like stocks, you have your choice of various materials. The most common are stainless steel, chrome moly, or chrome-lined steel.

Stainless steel barrels are made, as one would think, from stainless steel. This isn't your run-of-the-mill cutlery-type stainless steel, but rather a steel alloy with very high chrome content. These barrels are the hardest of the bunch, so they offer the highest degree of accuracy and life. Unfortunately, because of their high chrome content they are difficult to blacken -- shiny barrels are a bad thing in the Army -- and so are often only used in civilian applications.

Chrome-moly barrels are barrels made from a steel alloy containing chromium and molybdenum. They have the advantage of having good accuracy and durability, and are significantly cheaper than stainless steel barrels.

Finally, we have chrome-lined steel. These barrels are those made from a steel alloy that is subsequently lined with chrome to improve the corrosion resistance of the barrel. Because it is only the interior of the barrel that is chromed, the exterior can be treated to meet any specification. Chrome-lined steel is the barrel material of choice for the military because it is cheap, has good corrosion resistance, and perhaps most importantly, isn't shiny.

source: http://www.military.com/soldiertech/0,14632,Soldiertech_Rifles,,00.html

[glock19_fan]

Originally posted by Laxjedi1
Along these same lives...I see that RRA also offers a stainless steel barrel? What are the pro's and con's of these? I guess for military / MOUT / CQB purposes, a shiny barrel is not desirable. For civillian purposes, they might be the best option.

[RMTactical]

Originally posted by Laxjedi1
Along these same lives...I see that RRA also offers a stainless steel barrel? What are the pro's and con's of these?

For match rifles. Not ideal for an assault rifle, plus they are more expensive than chrome moly.

[Zagger]

Originally posted by richhermes
OK, and how does that effect the performance of an AR15 barrel?

All rifle barrels are made of varying grades of this type of steel. It is necessary due to the intense pressure and heat of rifle cartridges.

SS or CM are the most accurate. CM likes to rust, and chrome lined wont rust (inside the bore) but is less accurate. When in doubt, get chrome. If your application required SS, you probably wouldn't be asking--you'd know.