Canadian Airgun Forum

I wanted to thank you guys for all your info on these things, I went ahead and made my cone adjustable on my air stripper last night and saw some pretty radical changes depending where it sat. It seemed like mine did worse if the gap was the same length or slightly shorter than my hobby pellets. I have it sitting around .260-.270" and its shooting pretty good. However I need to throw it up in my lathe and bore it deeper so I can try some sub .200 gaps and see what that does.

_________________
-Ray-

These airstrippers I like a lot :

http://www.rowanengineering.com/product ... irstripper

emi

_________________
http://www.100mairgun.nl (TRANSLATOR on top)

Nice bling.
I am not a believer in airstrippers. The added weight to muzzle is what is helping to lower the muzzle flip.
The top vent on the stripper also helps, but too late, only ofter the pellet have left the barrel. The flip also might cause a problems, if the stripper bore is too tight a tolerance or too long. A way to effectively use air blast upwards to counter act the flip, is to port the barrel itself at the top, like some match pistols have. This way flip is compensated before the pellet leaves the barrel.
Airstrippers may cause more problems than it solves. An equivalent muzzle weight/brake probably work just as well.

A muzzle weight being as effective as an airstripper? If it's countering the "right" effect, I can see the reasoning. Mass is mass, and will have the effect you say..foolish to attempt to deny the laws of physics.

And yet...I have to wonder if so many higher end airgun companies and precision shooters can have it wrong. Are they spending money and adding weight without benefit? My own experience is admittedly limited to the two strippers I've thus far completed, but the results would seem to lean in one direction...in both cases groups shrunk. Is the cone shaped skirt of a pellet more sensitive to muzzle blast than a boat tail on a spitzer?

Perhaps I SHOULD try a muzzle weight of the same mass and moment arm .... just to see? Sure would save a lot of machine time if that were all that's required. At that point, we are talking about "barrel tuners". They do have a following in the pb world...why not here? IIRC Bob Sterne did some testing with a variety of muzzle weights with good results....the mind wonders...or is it wanders?

http://www.loweyproducts.com/html/tuners.html

More to think about.

Al

Some guns respond well to harmonic tuning and damping.
In a sense, a muzzle brake/weight also function as tuner/dampener.

A very interesting subject. In the powder burning world, Browning came out with an adjustable barrel weight for their guns, it was threaded,and a threaded sleeve went over it. This you adjusted for the ammo you were shooting. It would change barrel dampening for the ammo types. There was also a sleeve drilled to act as a muzzle brake, that could be just partly tuned to close the holes in the brake or not. The dampening will? likely change with different pellet wts. and shooting speeds.