BRT 16" OPTIMUM Barrel w/ Extended Length Gas System

[BufordTJustice]

Not Clint, but I can offer some thoughts on some of the above. For the twist rate, unless you plan to launch some very heavy or very long projectiles, a 1:8 will handle it all. Outside of the LR benchrest community, there is pretty much no difference when comparing the capability of a 1:7 to a 1:8. In fact, on the lighter end of the spectrum, some will say that a 1:7 won't do as well with 55gr and under bullets. But, in practice, 1:7s have proven to do just fine with the lighter projectiles. Ultimately, there are no "absolutes". What one barrel prefers may be different than another. But, that won't necessarily have anything to do with twist. Now, if we introduce twist rates of 1:9 and higher, then there's a conversation to be had.

Regarding the rifling, some will associate 5r with a greater potential for precision/accuracy. In practice, it's more about who makes the barrel than the number of lands and grooves. The reason some believe that 5r is "better" is the result of a couple things. One, 5r has lands opposing grooves; compared to lands opposing lands with conventional rifling. The argument is that this results in a better gas seal and less jacket deformation. Another reason, which is tied to the last, is that 5r barrels will pick up less fouling and clean up easier. There is some truth to these things. Projectiles going through less "trauma" when traveling down the bore should, in theory, perform more consistently. By that same token, a barrel that fouls less, in theory, should shoot more consistently throughout a range session. Still, while there are some legitimate reasons to desire a 5r over conventionally rifled barrel, it's actual significance may be overstated. Again, whomever is making the barrel will have a far greater impact.

TL;DR - A 1:8 twist with 5r rifling is nothing to be concerned about. If anything, some may find one or both of those specifications to be desirable. For me, the type of rifling or twist rate is highly unlikely to be a dealbreaker. Heck, I don't even mind having a 1:9 twist. To each, his own. YMMV.

Kdub beat me to it. Well said.


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[alx01]

great info @Kdubya

[Kdubya]

Kdub beat me to it. Well said.


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great info @Kdubya

Thanks guys. Evey once and a while I contribute something worthwhile

BufordT, how many rounds do you think you've got down the tube on your BRT at this point? That last update you posted in the summer, pushing the distance a little further, made it seem like it's proven to be a pretty good shooter.

[BufordTJustice]

Thanks guys. Evey once and a while I contribute something worthwhile

BufordT, how many rounds do you think you've got down the tube on your BRT at this point? That last update you posted in the summer, pushing the distance a little further, made it seem like it's proven to be a pretty good shooter.

Oh sheesh. Been really busy with lab stuff since then. Maybe 250 since my last update.

It’s especially tolerant of use with a can. It’s the smallest delta in ejection pattern I’ve yet seen in a barrel when comparing suppressed and unsuppressed.


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[opngrnd]

Thanks guys. Evey once and a while I contribute something worthwhile

BufordT, how many rounds do you think you've got down the tube on your BRT at this point? That last update you posted in the summer, pushing the distance a little further, made it seem like it's proven to be a pretty good shooter.

Not BufordT, but I passed 2k rounds earlier this fall. Still shoots great.

[Kdubya]

Oh sheesh. Been really busy with lab stuff since then. Maybe 250 since my last update.

It’s especially tolerant of use with a can. It’s the smallest delta in ejection now pattern I’ve yet seen in a barrel when comparing suppressed and unsuppressed.


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I certainly understand life being busy. The info you've provided relating to suppressed vs unsuppressed is much appreciated. Definitely makes this barrel even more enticing.

Not BufordT, but I passed 2k rounds earlier this fall. Still shoots great.

Thanks for adding another data point. Seems that everyone who's purchased one has been very satisfied.

[BufordTJustice]

I certainly understand life being busy. The info you've provided relating to suppressed vs unsuppressed is much appreciated. Definitely makes this barrel even more enticing.



Thanks for adding another data point. Seems that everyone who's purchased one has been very satisfied.

Happy to help.

In terms of its ability to accommodate suppression, it’s up there with the 18” Faxon GUNNER with rifle gas. So, basically almost peerless in my experience. Up there with KAC 16” intermediate and the last Stretch 16 3G setup I shot (also out to 500 with a first round [ever] hit at that distance. Literally, first round out of that stretch 16 gun was a hit at 500. Fantastic build by my good buddy.).


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[Kdubya]

Happy to help.

In terms of its ability to accommodate suppression, it’s up there with the 18” Faxon GUNNER with rifle gas. So, basically almost peerless in my experience. Up there with KAC 16” intermediate and the last Stretch 16 3G setup I shot (also out to 500 with a first round [ever] hit at that distance. Literally, first round out of that stretch 16 gun was a hit at 500. Fantastic build by my good buddy.).


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I'm not all that familiar with the Stretch16 barrels, but am glad you mentioned the Faxon Gunner. If I had to decide right now, I think I'd go Faxon over BRT. IIRC, the BRT barrels are actually produced by Faxon, but to BRT's specs. So, my preference is more about the barrel length options. The main factor being that I'm wanting to add something other than another 16" rifle to the mix.

[AndyLate]

What length rail is required to cover the gas block, please?

[Clint]

What length rail is required to cover the gas block, please?

Any hand guard 12" or longer will to the trick.