Ruger air magnum?

[wormbobskey]

Picked up a Ruger air magnum rifle today and was wondering if anyone knew where I could get a muzzle brake/moderator for it. Rifle really cracks even with the heavier .177 pellets. I was using the 10.5's and it sounded like I was shooting one of my rimfire rifles. Most of my shooting is in my backyard and this rifle definitely isn't backyard friendly.
P.S. Anyone have a trigger mod for this rifle?

[joek]

sounds like the gun is detonating not dieseling stand rifle muzzle down for a few days, or tear down  and clean out excess oil

[wormbobskey]

Definitely could smell burnt oil in it after shooting it today. I ran a dry patch through it as soon as I got home and it looked clean and dry. Is the smell coming from the spring chamber?

[MicErs]

Definitely could smell burnt oil in it after shooting it today. I ran a dry patch through it as soon as I got home and it looked clean and dry. Is the smell coming from the spring chamber?

This is called dieseling.  It is common with new springers for the first few shots.  The suggestion that you should sit it barrel down for a couple of days might actually help, so why not?  If it continues for more than a few dozen shots you might consider contacting the manufacturer.

The smell of burnt oil tends to support this.  You did not oil it when you got it, did you?

[wormbobskey]

No sir I didn't. I have never oiled an air rifle except on the outside metal parts. I have occasionally used air chamber lube sparingly after a few hundred shots in my other air rifles.

[MicErs]

No sir I didn't. I have never oiled an air rifle except on the outside metal parts. I have occasionally used air chamber lube sparingly after a few hundred shots in my other air rifles.

How many shots have you put through it?

[wormbobskey]

Just enough to get the scope on paper. Afraid someone would call the police thinking I'm shooting a powder burner instead of an air rifle. If I had to guess I'd say around 20 total shots using the 10.5 domed pellets.

[MicErs]

Just enough to get the scope on paper. Afraid someone would call the police thinking I'm shooting a powder burner instead of an air rifle. If I had to guess I'd say around 20 total shots using the 10.5 domed pellets.

Yep.  Ok, you have a gun that is shooting supersonic because it is burning lubricant in the piston chamber.  You need to shoot a few dozen shots through it and it will settle down.

I could be wrong but that is what it sounds like to me.  Once it stops pushing pellets above the sound barrier you will have a gun that is quieter.

[mikeiniowa]

here's a trick to get it quiet fairly quick, load two pellets at a time and shoot it about ten times, should burn off the oil and get it more stable

[wormbobskey]

Whats the heaviest pellet they make in a 177? The 10.5's were the heaviest wally world had on hand and our local gun store only had one kind of pellet in their store.
 I've gone ahead and have the rifle turned muzzle down in the corner with a paper towel under it. I'll let it sit like that for a few days and then wipe it down. I have a few other rifles I can shoot in the mean time. Does anyone know of any trigger mods that can be done to this rifle. It has a very long first stag, but does break pretty good. I guess I should shoot it a few hundred times before I start tinkering with the trigger.

[wormbobskey]

Thanks for the suggestion mikeiniowa I'll give it a try.

[joek]

Whats the heaviest pellet they make in a 177? The 10.5's were the heaviest wally world had on hand and our local gun store only had one kind of pellet in their store.
 I've gone ahead and have the rifle turned muzzle down in the corner with a paper towel under it. I'll let it sit like that for a few days and then wipe it down. I have a few other rifles I can shoot in the mean time. Does anyone know of any trigger mods that can be done to this rifle. It has a very long first stag, but does break pretty good. I guess I should shoot it a few hundred times before I start tinkering with the trigger.

look for diana T05 trigger tune and mods

[brapshwing]

I have a Umarex Surge and hopefully someone can help on this point but I think the Umarex trigger is the same as the Ruger.  I just did some trigger work on mine just this week and had some very satisfactory results.  I'm going to document the mods in a new topic.  The short answer on this is that you can get a new spring with lighter weight, ie .015 thickness spring.  This will lighten up the first stage substantially.  You can then use a #4x 3/4" panhead sheet metal screw and swap it for the factory screw. The new screw will solve the heavy first stage problem.  I went to Ace Hardware for the Spring and purchased what they call a #9 Spring which has the dimensions:  1 5/8"x7/32"x.015.  I cut it down to match the length of the factory trigger spring which is about 5/8".  I think you will be very happy with the lightened first stage.

The only caution I would raise is that when you use the longer panhead adjustment screw, be careful not to over-lighten the second stage.  If you over tighten the second stage of the trigger by turning the screw in, you will come to a point where the safety will not engage when you break and cock the gun.  you know how the safety always engages when you cock the gun and load the pellet?  Well the safety will not be engaged if you over tighten the trigger adjustment screw.

You aint gonna make it a Diana RWS trigger, but this will bring you a long way to being a happy camper with the trigger.

[wormbobskey]

I got out today and put another 50 or 60 pellets through it today and got it shooting a little better. Still cracks, but not as bad as it was. Guess I'm just used to shooting my marauder or disco. Anyway, its a long way from settling down, but its on its way. That automatic safety has giving me fits till I got used to it, now I'm starting to like it. That trigger definitely needs some work, but its not to bad once you get used to it. Bought an umerex moderator/ compensator I'm going to fit to the rifle. Hopefully it will make it a little more back yard friendly. Honestly though I imagine I'll shooting it some more then probably sell it. Sort of getting away from the springers since getting into PCP rifles. We'll see. Maybe one of my daughters will want it even though it is a bear to cock.
Did run it across the chrono and with the 10.5 pellets it was going on average 850 FPS. With the lighter pellets it was right around 1000 FPS. Not sure what the lighter pellets weighed as they are not marked. Might drop one on the reloading scale later.

[D14Jeff]

......... You aint gonna make it a Diana RWS trigger .........

what are the differences between the real RWS 05 trigger and the "clone" trigger that prevent that ? 

[brapshwing]

......... You aint gonna make it a Diana RWS trigger .........

what are the differences between the real RWS 05 trigger and the "clone" trigger that prevent that ?

Made in Germany vs made in China.

[wormbobskey]

If I keep the rifle I'm going to drill out the trigger pin hole and install one that fits a little better. The machining on this rifle seems pretty crappy to me, but I guess you get what you pay for.

[StevenG]

......... You aint gonna make it a Diana RWS trigger .........

what are the differences between the real RWS 05 trigger and the "clone" trigger that prevent that ?

Made in Germany vs made in China.

I highly doubt the place they make it really matters. My understanding is the cutting of metal operates the same the world over.
QA might be different, heck the source material might be too, but there is nothing stopping anyone from making a high quality product anywhere.

[Sfttailrdr46]

......... You aint gonna make it a Diana RWS trigger .........

what are the differences between the real RWS 05 trigger and the "clone" trigger that prevent that ?

Made in Germany vs made in China.

I highly doubt the place they make it really matters. My understanding is the cutting of metal operates the same the world over.
QA might be different, heck the source material might be too, but there is nothing stopping anyone from making a high quality product anywhere.

Several factors and it all comes down to money skilled labor costs, quality machinery for fabrication costs money and the quarterly earnings reports cost the over paid fat cats their jobs if the corporate earning fall off  so it is all about $$$$$

[56S]

I'm starting to get to like my 22 Air Mag.  We got off to a rough start with the seal being clipped when I got it.  I tried an Oring seal just like the one that was so successful on my BHE with less that good results.  Cocking pulled the seal off the piston and you don't know it until you fire it.  Since the original seal was damaged I called Umarex that they kindly sent a new seal my way.  Good guys they are.  I centered and welded the latch rod in place, cleaned, polished and moly-mashed it.  Second screw mod on the trigger and shimmed the breech washers for good measure.  Crosman 14.3s come out about 840something last time I checked.  The steel against steel episode didn't do the included scope any favors and the horizontal shifting may be due to that.  I will put the air mag scope on the BHE for testing but not risk installing a good scope on the air mag.  I may even try a peep on the rear and put the front blade back on.  First I need warm weather.