Tuning Beeman R1-SST

Blklasy911 · Oct 17, 2021

I have a 30 year old R1 in .20 which is losing it's pep.10 gr pellet chrono approx 700fps. Breech seal is OK.

Someone offered me a new SST spring they had. Should I use this with new seals. I don't know what the difference is with the SST......Thoughts?

Blklasy911 · Oct 19, 2021

After disassembly compared the SST spring with the original. I.D., turns, wire size and O.D. seem to be the same. Cleaning things up for reassembly I tempted to remove the inner piston sleeve....mistake....30 year old grease is like glue. IMHO if it ain't broke leave it alone. Just ordered a PG4 HO kit from Vortek.Thought I would just pass this on.

AirShot · Oct 24, 2021

That R1 sgould do much better than 700....My R1 in .22 cal was avg 820 plus with 14.3 gn pellets. It had a Macarri spring and an older style Vortec seal.

Blklasy911 · Oct 29, 2021

I have to agree with you. The Vortek PG4 tune kit came in. I cleaned everything and simply installed the kit as per instructions with their Vac-seal 30. Shot it 10 times then put 5 through the chrono. 10.9 gr pellet avg 780 fps with a 4 fps spread. I am sure this # will improve as the kit breaks in.

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Tuning Beeman R1-SST

Blklasy911

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Blklasy911

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AirShot

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Blklasy911

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