Airsoft Canada - View Single Post - longer outer barrel than inner barrel. make any big differences performance wise?

lurkingknight · September 5th, 2016, 21:18

you're looking for the most consistent/straightest bore you can find over the length of the barrel. You could argue that the longer the barrel/bore the higher chance you can have variances over the entire length.

The barrel length has no effect on range in airsoft. The air charge is the air charge. There's only so much energy to move the projectile.

Longer barrels have an effect if you have a non spherical projectile being twisted in flight to stabilize it, via rifling. There is no rifling in airsoft barrels nor would it do a BB any good to give it twist velocity.

Which makes those twist barrels BS. I have one on my bench that I ripped out of a gun because you could see BBs catch in it and get thrown all over the place, and the rifling would cut into the BBs and the material would build up inside and foul the barrel, making flight even more unpredictable. I replaced the damn thing with a stock brass barrel and it shot straighter.

In terms of length, my mp5 with a 229mm prommy shoots as straight as the 407 in my g36. The range is shorter because it shoots 25-30 fps less.

September 5th, 2016, 21:18	#10
lurkingknight "bb bukakke" KING! Trader rating Join Date: Jul 2011 Location: Ottawa	you're looking for the most consistent/straightest bore you can find over the length of the barrel. You could argue that the longer the barrel/bore the higher chance you can have variances over the entire length. The barrel length has no effect on range in airsoft. The air charge is the air charge. There's only so much energy to move the projectile. Longer barrels have an effect if you have a non spherical projectile being twisted in flight to stabilize it, via rifling. There is no rifling in airsoft barrels nor would it do a BB any good to give it twist velocity. Which makes those twist barrels BS. I have one on my bench that I ripped out of a gun because you could see BBs catch in it and get thrown all over the place, and the rifling would cut into the BBs and the material would build up inside and foul the barrel, making flight even more unpredictable. I replaced the damn thing with a stock brass barrel and it shot straighter. In terms of length, my mp5 with a 229mm prommy shoots as straight as the 407 in my g36. The range is shorter because it shoots 25-30 fps less. __________________ I futz with V2s, V3s and V6s. I could be wrong... but probably, most likely not, as far as I know.