Hypothetical question.
Suppose I have a 26inch barrel rifle.
I think it's a tad unwieldy.
So I lop off 10 inches and recrown.
Is there a formula to determine the resulting power drop?
Incidentally, that was the technical qiestion bit!
.??
Hypothetical question.
Suppose I have a 26inch barrel rifle.
I think it's a tad unwieldy.
So I lop off 10 inches and recrown.
Is there a formula to determine the resulting power drop?
Incidentally, that was the technical qiestion bit!
.??
I started this life with nothing and I still have most of it left!
Or possibly power gain. But in short: Yes. All we need to know is the swept volume, static compression ratio and lost volume.
Edit: oops, I assumed it was a springer.
Last edited by tinbum; 27-04-2017 at 10:15 AM.
My ignore list: <Hidden information>
Hmmmmmmm
if you are cutting and recrowning , it suggests you are cutting at the muzzle end .
so doubt if a formula can calculate the effect of removing your choke if you have one ...certainly would need more info .....
Is it a pcp or springer, as the effect will probably be opposite - increase in power for springer (less barrel friction), but possible decrease in power for pcp (depends how long the valve is open, i.e. how much air is released per shot). As mentioned, if removing from the muzzle end, you will have to worry about the effect of the existing choke. If the accuracy is currently good, try to shorten from the breech end.
There is no power drop. i took my superstar down to 8 inch barrel and put a silencer on. there was no difference in power.
chairgun is your friend.
the only thing i can find wrong is the nut on the steering wheel.
I doubt it's a springer with a 26" barrel. The old style '35E barrel was the longest I've seen, at 22".
Some barrel over cylinder PCPs might be that long, but shortening those would usually require a shorter cylinder to match.
Therefore to be considering lobbing 10" off the barrel, it sound more likely to be something like a Rapid.