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Cutting the barrel


Jake bowler
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Shorter barrel=less FPS 

longer barrel=more FPS 

but if you start chucking tight bore inners in the mix THEN you can get higher FPS with shorter barrels .

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16 minutes ago, Druid799 said:

Shorter barrel=less FPS 

longer barrel=more FPS 

but if you start chucking tight bore inners in the mix THEN you can get higher FPS with shorter barrels .

I've just changed a longer tightbore for a shorted brass non tightbore and got better FPS. 🙃

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2 minutes ago, Polluxtroy69 said:

I've just changed a longer tightbore for a shorted brass non tightbore and got better FPS. 🙃

Always has to be one ! 🤦‍♂️

😂😂😂😂

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40 minutes ago, Druid799 said:

Always has to be one ! 🤦‍♂️

😂😂😂😂

Im sorry mate haha. 

The tightbore was a madbull if thats any help. No idea if theyre shite or not. But i hear the brass are decent. 

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13 minutes ago, Polluxtroy69 said:

Im sorry mate haha. 

The tightbore was a madbull if thats any help. No idea if theyre shite or not. But i hear the brass are decent. 

Nah probs 🤣🤣

Was just quoting what the general rule of thumb seems to be with inner barrels , what Ive always heard anyway! 😁👍

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It has to be balanced.

Longer barrel = higher fps to a point, then it reduces it, but more importantly FPS is easy, It's a spring and it can be changed without any issues.

Longer barrel also = more variance in shot to shot FPS. This is bad for a sniper rifle. You need every shot to be the same or as close as possible. Having +-5fps a shot isn't going to cut it because with that FPS difference you will also see a hop variance. So the shot you fire will not hit the same point every time predictably.

You need to do a true volume calculation, then factor the barrel length to that. There are countless threads on this on here and on the sniper forums. Everyone has a different answer but most will be saying you need to be heading out towards the 2.5-3:1 ratio to get the shot consistency you need.

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