alros.177 trailsman,low on power?

[greasemonkey]

hi all,as you may have read on a previous thread i have been fiddling about with my single shot.177 slim tube air reservoir trailsman for a few weeks now,all is honky dory apart from i am not sure wether it is down on power or not,despite changing the o ring on the bolt probe and those on the air reservoir mating surfaces and a stronger hammer spring and trying a variety of pellets with a 200 bar fill the best it will do is 10fpe.is this the best it should do?before i did all the above best power was 9.5fpe.. if not can anybody point me in the right direction for a little more oooompf....cheers greasemonkey

[greasemonkey]

no one else had this problem? had a thought and have just changed the valve spring for a lighter one, will chrono tommorow..cheers ..greasemonkey

[howard5760]

Hi Like yourself I bought an Alros some months ago and the seller had it serviced at my local gunshop before i got hold of it. The shop gave it to me with a certificate showing that it had been set at 11.4ft/lb. I was under the impression from the shop that it was capable of going over the legal limit. the shop i used was Target sports at Bolton. Your air is going some wherebut not behind the pellet good luck. howard5760.

[greasemonkey]

hi howard,i believe the air is getting behind the pellet but not in sufficient quantity.this gun i got in a deal with an old mate who had it from new .i believe it had never been stripped before i got it.it may be the case that it has always been low on power there is a slotted spring preload adjustment screw in the hammer to increase and decrease power..when i stripped the air valve today the spring was extremly strong,in fact impossible to compress at all between the fingers.i replaced it with a lighter one, i am hoping when i chrono it tommorow things have improved somewhat..cheers..greasemonkey