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20 vs 18

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20 vs 18 was created by OleCowboy

So my AR 10T has the SS 20" bbl, but I always wanted the 18", so I am thinking of having it shortened. What prompted this was I want to flute the bbl and am thinking that while I am at it why not get it shortened then fluted at the same time, I also plan on changing out to a different flash suppressor ( www.midwayusa.com/product/570743/jp-ente...eter-stainless-steel ]

Thoughts, advantages, disadvantages, other paths to take?
10 years 11 months ago #23625

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Replied by Siscowet on topic 20 vs 18

I like the twenty just because I am used to it. I will be interested in what LebbenB and Colt have to say about ti.
10 years 11 months ago #23627

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Replied by Libertarian623 on topic 20 vs 18

It will cost you 80-100fps, but I say go for it the accuracy will not suffer . It may even get better if you flute it.
10 years 11 months ago #23637

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Replied by faawrenchbndr on topic 20 vs 18

I just had a 20" AR10T barrel fluted and bead blasted.
Will have it late this week or early next.

That's a great brake, had one on my last AR10, went with a BattleComp for this barrel.
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Last edit: 10 years 11 months ago by faawrenchbndr.
10 years 11 months ago #23643

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Replied by Siscowet on topic 20 vs 18

My next rifle is going to be an AR10T Carbine, or the Rock River equivalent.
10 years 11 months ago #23644

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Replied by jtallen83 on topic 20 vs 18

I was originally thinking about an 18 inch but thought getting a 20 would leave me with a good excuse to get the carbine some day. ;)
If it were mine I would have them cut it back and take the weight loss and handling.
LIBERTY FIRST!
10 years 11 months ago #23651

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Replied by faawrenchbndr on topic 20 vs 18

Somewhere I posted a weight of the 20" T barrel before it went to the machinist. Will post a weight before I install it
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10 years 11 months ago #23655

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Replied by 13fcolt on topic 20 vs 18

txlongshotb4 had his lija cut down to 18", and I'd say from his last hunting pic, it hasn't hurt anything at all. I think he went down from 24" if I recall. There will be a velocity loss, but if the job is done right & proper there is no reason to expect an accuracy loss. 18" barrels are becoming the more common length being a good compromise all around. One thing I have noticed amongst those that don't use handloads, is that after a year or 2 with an 18" barrel, they end up with a 16".
It all boils down to having a rifle that is easier to use at the distances most frequently shot. I think the jump from 20 or 24 to a 16 scares some folks into thinking they wont have those extra inches if they should someday need it, but going 2 inches at a time sort of eases them into what was always more practical for them to begin with.
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The following user(s) said Thank You: jtallen83, OleCowboy
10 years 11 months ago #23665

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Replied by Siscowet on topic 20 vs 18

Now comes all the bad jokes of how intimidating those two extra inches can be.
10 years 11 months ago #23666

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Replied by 13fcolt on topic 20 vs 18


you beat sharkey in bringing that up. :clap:
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10 years 11 months ago #23667

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