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I bought my latest springer, the M54 from an auction. The dealer is reputable but knew nothing about air guns.
The rifle arrived prestine as promised and on advice I got here I bought the BSA 3 X 12 50 mm tube and mounted the thing.
To the back yard range I went and never once gave a thought to running a patch downbore.
I set up the Chono and the 1st shot cracked like a hi-vel .22 r.f and the speed registered 1175 f.p.s.!!!!!!!!!!!!!!!!!!!
Is this my 1st 'diesel'? I didn't like it one bit. I suspect the dealer oiled the thing and maybe sprayed oil down the bore.
Anyway the smoking stopped after about 5 shots and velocities with Premier heavies went in the 850/870 ish range. I suppose this is where it should be.
I cleaned the barrel after 10 rounds with the proper rod/jag/patch and RWS bore cleaner and it was dirty/tarry looking.
Burnt oil?
It took about 8 wet patches and same dry to clean it till a patch came out pretty much white.
The gun prefers heavies and I'm guessing this is normal.
The rifle has less than 200 shots total through it and accuracy is NOT stellar.
I get average 3/4" groups at 25 yards with the heavies it seems to prefer.
Kodiak Heavy Match, Premier Heavies and so forth.
I'm told or I've read somewhere that it takes about 1000 rounds for these things to "seat and settle" and accruacy improves.
True?
Lawdog, you and several others here seem to know a lot about air guns.
Would you be so kind to help a newbie with some advice and teach an old dog a few things? :-D :D
 

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jeager106,

Dieseling is normal in new rifles and may continue for quite a number of shots. Yes a number of unknowing dealers will spray oil down a barrel believing they are protecting the bore during shipping. the dieseling will continue until all the oil is out of the compression chamber. Can dieseling hurt your rifle, YES if it continues long enough. You didn’t say but I take it your M54 is a .177 caliber and it is going to be loud even after break-in. The closer you get to the speed of sound(1,100+ fps. depending on a number of things) the louder any air rifle is going to be. As your rifle gets broke in(usually 500 or more shots depending on the rifle) velocity and accuracy will keep improving. If shooting off a rest make sure the rest pad is soft and that you don’t grip the rifle to tight. Go to http://www.airgunexpress.com/Tech Articles/techarticlesairgunshootingaprimer.htm and read the article by Tom Gaylord there. Lots of good information on shooting air
rifles accurately. Lawdog
:D
 

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Well Lawdog, as usual STELLAR advise! :)
I can't thank you fellas enough for sharing information.
I'll go the the website and dig up info.
Yes it is a .177 and I shoulda metioned that. The dealer says it was fired less than 50 shots when the owner left our world and the dealer was selling it for the widow.
Yeah, right. (could be?)
Anyway the thing appears brand new.
Thanks again for the tips and advice.
 
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