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ThunderCactus · March 9th, 2016, 11:55

Slap a 229mm in there and do the same.
I'm running a 300 6.05 in my M14 and it's looking pretty impressively consistent at 200+ft
The length of your barrel is only really a measure of acceleration. Once the BB has passed through the hopup, it now has range and most of it's accuracy. Depending on your barrel pressure, the next few mm's center the BB straight. Anything beyond that is really just there to increase maximum potential fps and accelerate the BB more slowly.

Pistols have tiny little short 3" barrels, yet at the max range of 160ft, my USP compact was hitting 6" groupings (.32g at 250fps, about .95j). And I still don't know how much of that was me. Could very well have been hitting nickels for all I know; hard to tell without a gun vice and a closed course.
All the barrel has to do is point the BB in a straight direction and not interfere with it's backspin. The backspin and BB composition really take care of the rest. As long as the hopup imparts the backspin perfectly perpendicular to the ground, it'll fly straight.
Major issues are inconsistent hop; either imparting randomly side to side or inconsistent amount of backspin, and inconsistent fps; which can also cause inconsistent backspin applied.

To say it simply; if a 650mm barrel really had any serious advantage over a 90mm barrel, you would see a drastic performance difference between the two in terms of accuracy. But it's just not there. The issue wouldn't just get worse on a steady curve, it would get exponentially worse as you shortened the barrel past the point where people think the BB is still being stabilized.

And, let's be real here, if longer barrels were better, every guntech worth their salt would be running a polearm of a rifle lol

A rumor had gone around that 420mm was "the most efficient" or "the best" barrel length, 1) I had said that like 5 or 6 years ago and since refuted it after seeing CQBRs shooting as well as whatever gun I had at the time, and 2) airsoftmechanics found that a 420mm barrel (6.03 I guess?) was the best match for a full cylinder, but made no correlation as to in accuracy compared to other lengths.

March 9th, 2016, 11:55	#19
ThunderCactus Not Eye Safe, Pretty Boy Maximus on the field take his picture! Trader rating Join Date: Feb 2007	Slap a 229mm in there and do the same. I'm running a 300 6.05 in my M14 and it's looking pretty impressively consistent at 200+ft The length of your barrel is only really a measure of acceleration. Once the BB has passed through the hopup, it now has range and most of it's accuracy. Depending on your barrel pressure, the next few mm's center the BB straight. Anything beyond that is really just there to increase maximum potential fps and accelerate the BB more slowly. Pistols have tiny little short 3" barrels, yet at the max range of 160ft, my USP compact was hitting 6" groupings (.32g at 250fps, about .95j). And I still don't know how much of that was me. Could very well have been hitting nickels for all I know; hard to tell without a gun vice and a closed course. All the barrel has to do is point the BB in a straight direction and not interfere with it's backspin. The backspin and BB composition really take care of the rest. As long as the hopup imparts the backspin perfectly perpendicular to the ground, it'll fly straight. Major issues are inconsistent hop; either imparting randomly side to side or inconsistent amount of backspin, and inconsistent fps; which can also cause inconsistent backspin applied. To say it simply; if a 650mm barrel really had any serious advantage over a 90mm barrel, you would see a drastic performance difference between the two in terms of accuracy. But it's just not there. The issue wouldn't just get worse on a steady curve, it would get exponentially worse as you shortened the barrel past the point where people think the BB is still being stabilized. And, let's be real here, if longer barrels were better, every guntech worth their salt would be running a polearm of a rifle lol A rumor had gone around that 420mm was "the most efficient" or "the best" barrel length, 1) I had said that like 5 or 6 years ago and since refuted it after seeing CQBRs shooting as well as whatever gun I had at the time, and 2) airsoftmechanics found that a 420mm barrel (6.03 I guess?) was the best match for a full cylinder, but made no correlation as to in accuracy compared to other lengths.