GTA

All Springer/NP/PCP Air Gun Discussion General => European/Asian Air Gun Gates => China/Asian AirGun Gate => Topic started by: bantam5s on July 17, 2015, 04:04:18 PM

Title: un finished breach?
Post by: bantam5s on July 17, 2015, 04:04:18 PM
Hey , I'm just wondering if its a common problem to have a gun that won't fully seat pellets? . Cause I've had to dremmel out the breach on 2 guns, my b19 variant, and my brothers crosman optimus/ b19 variant. How many of you guys have had to do this?
Title: Re: un finished breach?
Post by: Kailua on July 17, 2015, 06:15:23 PM
It is common to put a chamfer on the leade end of the breech opening of the barrel.  JMO
Title: Re: un finished breach?
Post by: paddyfritz on July 17, 2015, 11:12:26 PM
Be careful not to over do it. I have seen guns opened up till pellets will fall right into the barrel.
Title: Re: un finished breach?
Post by: Bryan Heimann on July 17, 2015, 11:26:22 PM
I've only had two breakbarrel with a satisfactory chamfer in the breech.  One was tuned from Flying dragon, the other was a stoeger x10 i picked up at a pawn shop.  Having owned a few of the stoegers, I believe the one I got at the pawn shop had either been professionally tuned, or was once owned by a savvy airgunner and tinkerer before I got it.  I just use the soft rubbery bit from a Drexel set and twist it in the breech by hand until it gets to a point that most pellets fit flush without wearing out my thumb.  Seems to work for me.
Title: Re: un finished breach?
Post by: hoffy43 on July 18, 2015, 11:40:58 PM
I chamfered my 07 Gamo Big Cat. Just a very little bit work with my dremel gotter done as I recall.
Title: Re: un finished breach?
Post by: bantam5s on July 19, 2015, 03:22:58 AM
Thats what I did I just used a low powered  cordless dremmel so it would be  kinda hard to over do it, you can also use one of those crappy little harbor freight rotory tools since they lack the power to over do anything.
Title: Re: un finished breach?
Post by: SagaciousKJB on July 21, 2015, 01:09:35 PM
Yeah my Vantage ( a b19 from what I understand ) has an unfinished breach too. Oddly my Kodiak came with a little chamfer.

We use to chamfer things by hand with a countersink and drill press, would just turn it on to get the spindle going a bit and chamfer pit a little at a time.
Title: Re: un finished breach?
Post by: big_o_lar on July 21, 2015, 08:20:22 PM
gentle application of a Phillips screwdriver works too ;)
 
Title: Re: un finished breach?
Post by: Motorhead on July 21, 2015, 08:37:58 PM
Quote from: big_o_lar on July 21, 2015, 08:20:22 PM
gentle application of a Phillips screwdriver works too ;)
 

 :o :o :o :o :o :o :o :o :o :o :o :o
Title: Re: un finished breach?
Post by: Sfttailrdr46 on July 21, 2015, 11:12:20 PM
 ;D My Hatsan Super Charger 25 pistol required a judicious application of the Dremell tool to chammfer the breech slightly
Title: Re: un finished breach?
Post by: SagaciousKJB on July 22, 2015, 06:21:57 PM
(http://i1266.photobucket.com/albums/jj528/sagaciouskjb/IMG_20150722_141805.jpg) (http://s1266.photobucket.com/user/sagaciouskjb/media/IMG_20150722_141805.jpg.html)
Did this just twisting a drill bit with my fingers. Anyone think it needs to be bigger? My main concern was to keep it from shearing/deforming pellet skirts that didn't seat deep enough
Title: Re: un finished breach?
Post by: bantam5s on July 24, 2015, 04:36:54 AM
I'm not sure I just did mine untill it was as deep as I tipically see on springers, I would copare it to another gun in ,person or in pics.
Title: Re: un finished breach?
Post by: Bryan Heimann on July 24, 2015, 06:58:57 AM
Slide a pellet in with your thumb to check it.  If it's not too tough to bury passed the skirt, you're good.  The smallest  amount required is the best.