Discussion in 'General Airgun Chat' started by pjp61, Apr 3, 2015.
Anybody use these?
Do they re-shape out-of-round skirts?
Yes... but I would be more comfortable buying from a known air rifle engineer rather than an unknown company. If you know that they are accurately made then they might be ok.
Dean - do you know of a known rifle engineer who makes them?
U.K.Neil he's the boy for sizers
I used a TR Robb sizer for several years and found it greatly reduced random flyers.
Not sure what 'safe place' I put it in when I packed in FT, so I may have to buy myself another, at which point I will of course find the original.
Just bought a sizer from U.K.Neil £19 delivered .
what are they made of brass? or steel?
Brass (well they were a few years back)
How do they guarantee the size ?
To machine to +/- .003mm takes some doing. Even measuring will be rather difficult.
I know Robs is tapered.
The Phil Hassel one I had was spark eroded - now that is an accurate process, really close tolerances I believe you can get + or - 4 microns!
That's the level of accuracy required. You would need a temp controlled gauge room to measure it though.
Phil did some good stuff. Pity he was so hard to deal with.
I have a welham adjustable one, used to use it all the time when prems were the pellet of choice fot ft. Very well made, its a slow taper with an adjustable depth stop. Dont bother sizing jsbs, just put a bit more time into batch testing and then buy a case, you can usually spot the batches with more damages.
What's his contact details please? Ta
Managed to get in touch with UK Neil through BBS.
He,s posting one out to me Tuesday
Thanks for comments/advice
Much Appreciated as always