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rixsta · Guest

hi all, i have some ideas but would like to know and see what every one else has done to theres...please let me know what youve done or show some pictures and please let me know what you think of them....thanx ricky

AirGunEric · Site Admin

Do you own an "original" SuperTen, the Mk2 or Mk3? Not that it really matters- from what I've seen of them, they are all constructed in much the same manner.

Anyways- I understand that the first 'mod' anyone should do is replace the bottle sealing o-ring with a urethane unit- apparently the factory o-ring has a tendency to blow out when installing or removing the bottle.

Next- power output/lack thereof the all controlled by the regulator on these guns:

The regulator does wonderful things for shot consistency (and in turn, accuracy)- but not so much for power in some cases- it depends on the particular regulator in question. For example, a "detuned" version has a different regulator in it than the full 22/30fpe models. So, what can you do?

You could have a regulator made (big job) by someone who knows that they're doing- like this guy: http://home.comcast.net/~joekorick/personal.htm

here's a sample of his custom units:

Or, you could try shimming the spring inside- although it's tough to predict what this will do without appropriate testing equipment- so it becomes a "trial and error" sort of process.

You could also try eliminating the regulator entirely- i.e. have the air feed straight from the tank to the valve and use an external regulator for pressure control- but then the consistency advantage will disappear and you will be left with a more "traditional" PCP setup with a constantly dropping power curve- big power to start, and then a continous dropoff.

Lastly- I understand alot of people find the SuperTen's heavy- especially for a PCP gun- so maybe find ways of reducing the weight- i.e. lighter stock, if doing anything with the regulator- have the brass unit replaced with an aluminum unit, etc.

I would be more specific, but I don't have a Super10 or access to one to look over in great detail. Hopefully someone around here is familiar with it.

Also- I understand there are/were a couple guys (located in the UK) that do alot of tuning work on the SuperTen line. First one is a guy named Adrian, telephone number is/was 138 6832 146. The other guy was John Bowkett at 0121 745 4287. I'm not in the UK so I have no idea why the phone number structure is different between those two (?). If someone wants to educate me on this- feel free. Very Happy

rixsta · Guest

hi there, thanx for the info, the difference in phone number is the citys the people are in, now john bowkett lives close to me in birmingham city cuz his starts with 0121 now the other adrian lives in a different city 01386 yes you missed the o ...thanx for the info you have openned my eyes to more stuff than i realised... i have the mk2 there no different from the mk3 but i beleive the mk1 is different, maybe some one can enlight us on this bit i aint got a clue how there different...the mk2 and 3 is the stock...ive been told about adrian he designed the super10 stalker on high power but have heard that there not built well and need service all the time, and he charges a bomb for parts....now john ive heard nothing but good and he designed the super10.. i live 5 minoutes from BSA and have just collectedmy super 10 from a bull barrell 177 conversion and im sure they said it was john who changed it...i have tuning dvd and it shows for power i just need shims adding but power is not what im after as i have no licence and dont want to go jail for 5 year... heres my questions some of them are just out of interest if you can help please do thanx... whats the best way to get pure consistency? short barrell or long?how do i get the fastest lock time??where can i get a walther quality barrell to fit and will send to the uk??whats the power fulles ft/ibs youve had or known of??what far ist accurate shots youve known??who builds stocks to fit in the us and will post the uk??what custom work have you had and how did it change the rifle?? thanx for the help guys!!!some pictures of yours would be nice???

AirGunEric · Site Admin

I don't have a SuperTen to go and look at/play with- so I can only offer some generic ideas.

Perhaps put a slightly longer barrel on the gun- this may help accuracy a bit and may get you closer to the 12fpe limit in the UK (am I understanding you correctly in that your gun isn't quite at 12ft-lbs yet?)

Another item which might contribute to accuracy would be the trigger pull- the harder it is to pull- the more likely it is for the shooter to move the gun around and go off target. I don't know if the SuperTen has a particularly hard trigger- but if it does, look at lightening it.

The last thing I might mention for consistency is the air pressure. The regulator aids greatly in "metering" out the air- but there will be a point where the air pressure drops and the guns range is noticeable shortened- recharge/fill the tank before you reach that point. Obviously, a SCUBA tank fill system would make this a lot more palatable if you are shooting from a stationary location.

Unfortunately, I personally can't help you with where to get a Walther barrel that fits the SuperTen. But- if you can't find such a barrel- measure the outer diameter of what you have and see if an alternative is available- for example a "barrel liner" which is an insert used to re-line/re-store regular firearms (in muzzle loaders typically).

rixsta · Guest

hi there, thanx for all the advice and your time mate...ricky

magnum flinch · New Member

I have the mk3 bull barrel rifle and it is a HEAVY piece of kit
i wouldn't bother with the hammer or spring, just Shim the cigar to 20f/lbs a nice power for these great rifles.

I wouldn't risk going over 50f/lbs for any shrouded barrel - the gubins in the barrel dont like it Exclamation

AirGunEric · Site Admin

Alstone · Moderator & Site Supporter

It's English colloquialism meaning the insides, guts, parts etc.

We'll have to get you an English / Canadian dictionary. Smile

Al

broommaster2000 · Moderator

Doesn't tuning a BSA means that you won't be able to sell it for a consistent price?