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 Stainless 410 or Chrome Moly Vanadium - which is better?
jcwehking  [Member]
8/21/2010 10:00:07 PM
Looking for accuracy and longevity - the best of both worlds. What are the advantages of each or doesn't it matter?
GeorgieBoy  [Member]
8/22/2010 2:55:25 AM
Generally speaking, chrome lined for longevity, stainless for accuracy.
jcwehking  [Member]
8/23/2010 10:57:05 PM
bump
BamaInArk  [Team Member]
8/23/2010 11:19:06 PM
Today's it's depends on who makes the barrel. In years past the most accurate barrels where non chrome lined followed by chrome lined then stainless steel. Some of today's SS barrels can be quite accurate.

And from reading your thread topic I'm not sure if you mean a chrome lined barrel or just non chrome lined. In general if the barrel is not made from Stainless Steel it's made from Chrome Moly with Vanadium added to better barrels blanks. This has nothing to do with a separate chrome lining. Chromium Molybdenum is what barrels are made of...Chrome Moly for short.
Keith_J  [Team Member]
8/23/2010 11:25:17 PM
416R is easier to machine than 410. The ease of machining plus the resistance to flash hardening makes 416 a bit longer life in rifle barrels.

Hard chrome plating dramatically helps bore life but it won't last forever. Once the plating cracks, the heat and pressure embrittles the inner bore becomes brittle and cracks. This isn't from bullet friction but just heat and pressure. The throat has the longest exposure to heat and pressure, the temperature of the gas can be over 6000 F, just for a few microseconds. This is enough time and temperature to harden chrome-moly-vanadium steels. The martensitic steels (400) are much more resistant to this but will still gas erode.

For match work in the 5.56/.223 Rem, this is about 5000 rounds for 416R. For chrome plated, you can expect accuracy to fall off past 12,000 rounds.
jcwehking  [Member]
8/24/2010 12:26:47 AM
Originally Posted By BamaInArk:
Today's it's depends on who makes the barrel. In years past the most accurate barrels where non chrome lined followed by chrome lined then stainless steel. Some of today's SS barrels can be quite accurate.

And from reading your thread topic I'm not sure if you mean a chrome lined barrel or just non chrome lined. In general if the barrel is not made from Stainless Steel it's made from Chrome Moly with Vanadium added to better barrels blanks. This has nothing to do with a separate chrome lining. Chromium Molybdenum is what barrels are made of...Chrome Moly for short.


Looking at Sabre Defense barrels specifically. Both sound good. The chrome moly vanadium is chrome lined.
Keith_J  [Team Member]
8/24/2010 11:20:47 AM
I would only spend the money on a stainless if the barrel is made by one of the premier target barrel makers: Shilen, Lijia, Krieger, Pac Nor etc and you WANT a target barrel. If all you want is minute of M193 grouping, stick with low alloy steel (chrome-moly-vanadium).

Yes, it is easier to make a great barrel from 416R.