RWS: SUPERDOME question

[Nobby.177.]

Hi i was just wondering is anybody has the same problem as me, i just bough some RWS: SUPERDOMES and yea they shoot great but the skirt dosent fully load into the barrel the even after a hard push. Id say there was 1mm sticking out and when i close it up it squases it flat.

any ideas why ?? i though all .177 fit .177 rifles snugly

:Rifle = Sa2 swiss arms

[Lambchops]

Some barrels have a tighter "choke" than others. Pellets are manufactured in different sizes like .172, .175, .177, .178 & even .180 all with the intent to be used in .177 cal air rifles.

I'm not home at the moment, but in the GTA Library, there is a link to a site where it shows the diameter of almost every pellet known to man

[Nobby.177.]

Some barrels have a tighter "choke" than others. Pellets are manufactured in different sizes like .172, .175, .177, .178 & even .180 all with the intent to be used in .177 cal air rifles.

I'm not home at the moment, but in the GTA Library, there is a link to a site where it shows the diameter of almost every pellet known to man

holy peanuts batman do share

btw will it damage the rifle in anyway if i keep using them??

[northern lights]

My rws 34 was like that. What I did was enlarge the hole. Get a drill bit slightly larger then the hole an slowing drill it. This will do two things give your pellets an better fit an keep them from being damaged. an might increase vel,s with better seal. Very easy to do just go slow an test fit the pellets.

[Lambchops]

Some barrels have a tighter "choke" than others. Pellets are manufactured in different sizes like .172, .175, .177, .178 & even .180 all with the intent to be used in .177 cal air rifles.

I'm not home at the moment, but in the GTA Library, there is a link to a site where it shows the diameter of almost every pellet known to man

holy peanuts batman do share

btw will it damage the rifle in anyway if i keep using them??

No, there is no risk of this damaging your rifle. However, like you said, it does damage your pellets to a degree. It squishes the skirt and the skirt is essential for accuracy. I'll find the link and share it with you.

[EJB]

I used a stone in a drill and just barley beveled the breach opening.  It sure made loading easy.  It did not bother the accuracy.  Almost always less than dime groups at 10 meters.

[Nobby.177.]

I used a stone in a drill and just barley beveled the breach opening.  It sure made loading easy.  It did not bother the accuracy.  Almost always less than dime groups at 10 meters.

i get a good group of 10 at 10 meters but sometimes get a random flyer so maybe the tricks is just to drill a bit out the end.

[Nobby.177.]

My rws 34 was like that. What I did was enlarge the hole. Get a drill bit slightly larger then the hole an slowing drill it. This will do two things give your pellets an better fit an keep them from being damaged. an might increase vel,s with better seal. Very easy to do just go slow an test fit the pellets.

ok drilling it sounds fine just when i change my pellets about will it matter much that some will be small and full right inside?? or will just taking the lip out make the fit tight but lower in the barrel.

sorry i have to ask these things thats how my brain works

[northern lights]

Your other pellets will fit fine. you are not making the hole bigger all the way down the breech just the end. you only have to drill a 1/16 - 1/8 inch deep. Just go slow an test fit the pellets so they can be push in all the way so the skirt dosen,t get damage. I picked up 60 fps on the rws 34 got a better seal so got a vel,s increase.

[Lambchops]

http://straightshooters.com/documents/pelletcomparison.html


Here ya go brother.. Sorry I took so long

[Nobby.177.]

http://straightshooters.com/documents/pelletcomparison.html

thanks lambchops ill have a gander at it



Here ya go brother.. Sorry I took so long

[Nobby.177.]

Your other pellets will fit fine. you are not making the hole bigger all the way down the breech just the end. you only have to drill a 1/16 - 1/8 inch deep. Just go slow an test fit the pellets so they can be push in all the way so the skirt dosen,t get damage. I picked up 60 fps on the rws 34 got a better seal so got a vel,s increase.

thanks for that i dint want to start anything and fnid out that other pellets would not fit right to make a perfect seal, not to find some tools i can rely on not to mess it up

[thekid]

You do not even need a drill bit..
A brass screw and 400-600 grit sand paper wrapped around it and spin the drill slow changing the sand paper as needed.

Get some felt cleaning pellets or put a pellet in the bore first to keep the grit out of the barrel.

Sand some clean out grit then shoot out pellet, inspect the bore clean if needed then try putting in a pellet. continue till it sits flat... not much material will be removed.

Just remember you will have to keep cleaning the barrel as the grit could cause/will cause problems with the bore if left in and pellets are shot threw it.
Rob

[bradyman1]

I had the same problem with superdomes. I used a cone shaped grinding stone and turned it by hand. It didn't take long. I wouldn't trust a drill bit to leave a smooth transition. 

[Nobby.177.]

ok thanks for the advice guys gonna try that today see what happens wish me luck

[MustangMike]

Awesome idea, my titan is like that with every single rws pellet I have. I had thought about touching it a bit with my coned grinding dremel attachment but wasn't sure if that would be ok to do

[SAADE]

Yes, what everyone suggested; and the brass, round-head screw works very well, just plug the breech about .25" down from the opening to keep the gunk out of the barrel. You can even use a valve grinding compound available from most (real) auto parts stores. I have done this many times with great results. You only need a .060" chamfer or relief to make a big difference in starting the pellet into the breech. As a side benefit, you will have polished the transition of the lands & grooves to the breech mouth, which also helps lessen any scarring of the pellet. (kinda like a crown job on a muzzle)

None of this will change the actual breech diameter where 95+% of the pellet will seat so, you will not limit the use of various diameter pellets, it just makes it easier to insert any brand or type.

[milkman]

Yes, what everyone suggested; and the brass, round-head screw works very well, just plug the breech about .25" down from the opening to keep the gunk out of the barrel. You can even use a valve grinding compound available from most (real) auto parts stores. I have done this many times with great results. You only need a .060" chamfer or relief to make a big difference in starting the pellet into the breech. As a side benefit, you will have polished the transition of the lands & grooves to the breech mouth, which also helps lessen any scarring of the pellet. (kinda like a crown job on a muzzle)

None of this will change the actual breech diameter where 95+% of the pellet will seat so, you will not limit the use of various diameter pellets, it just makes it easier to insert any brand or type.

Thanks for posting this, the only glitch I have with my Beeman 1073 since I used LocTite on the screws is the rough edges around the breech that makes it hard to insert a pellet now and then. Didn't want to ask a dumb question and I hadn't seen it mentioned before, so I just thought it was normal.

[SAADE]

No dumb questions here, I knew absolutely nothing about these crazy airguns 30 years ago, I now know a little more from many "dumb" questions.

[Nobby.177.]

its fantastic that this question can help so many people with the same problem well done guys