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Old 12-30-2017, 1:33 AM
Ishootforblood Ishootforblood is offline
Join Date: Jun 2013
Location: I live in Disneyland
Posts: 123
iTrader: 6 / 100%
Default A very accurate RWS 45 Project Gun

I bought a couple of used air rifles from Member Bart1015. I really wanted his old Sheridan Blue Streak, and I really didn't want this RWS 45, stamped 06/84. Nonetheless, it was part of the deal. The first photo is the "before" shot of the RWS 45.

I opened the 45, and found it loaded down with grease. Current Diana Rifles are generally dry. I've never been inside a RWS 45 before. Maybe RWS or Diana actually lubed them back in the 80s, or a pervious owner lube tuned it? Who knows.

I found the RWS 45 was different than the Diana 34 and 350. There is a cocking shoe that rides in a slot of the piston, and there is a sleeve that fits inside piston, along with a washer. The cocking shoe fell out when I dragged the piston out of the compression tube. It took a few minutes to puzzle-out. More troubling was the second take down pin. The pin actually slips through a leaf type spring that operates the safety. That took more than a minute to sort out. The piston seal is leather, but it initially appeared to be rubber. I soaked for a few minutes it in RWS Silicon. After a detailed cleaning, I applied a bit of molly to the Compression tube, and a bit on the piston. That was followed with black tar on the main spring, etc. Basic stuff.

I mounted an old Leapers 4x AO scope on the 45, and fired a couple of 10.5 grain pellets. These are the heaviest pellets I have at the moment. I then fired several groups using CP 7.9 grain pellets. My initial groups were all over the paper. I know from experience that the piston seal acts like a tight fitting squeegee inside the compression tube, and any excess molly lube gets forced out the air port hole, and into the barrel. Sure enough, the barrel was coated in molly. After cleaning the barrel with a pull through set, the rifle began to shoot. And it shoots great. Sub half inch groups at 25 yards are ridiculously easy. I had several groups that were one ragged hole. I have several Diana 34 rifles with JM Tune kits, and this old RWS 45 shoots as good or better than any 34 I own.

The outside of the 45 barrel still looks pretty bad. I buffed it with steel wool and solvent, and then put a bit of cold blue on it. That was premature, and I should have sanded it properly. I have a can of Matte Black Aluma-Hyde, and I'm seriously considering painting the barrel. My reasoning is that I'll be putting my hand on the barrel every time I cock the rifle, and the paint will hold up better than the cold blue. Perhaps there is another option that I'm overlooking? Regardless, there is no collector value given the rust and pitting, and the sights are missing as well. I looked at the conversion kit that allows the use of a synthetic piston seal. It involves drilling out the riveted leather seal, and tapping the piston for the new seal attachment. It's suppose to add FPS to the rifle. But, I'm really please with the accuracy and I don't want to risk losing that accuracy.

To sum it up, I'm really pleased with this rifle. Thanks for reading my post, and any thoughts or suggestions on my barrel would be appreciated.
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File Type: jpg IMG_8287.jpg (79.4 KB, 42 views)
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