Adding a regulator to non reg rifle. Air chamber size ?

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M

Matchman

Member
Jan 22, 2019
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Ohio, United States
I'm considering adding a regulator to a Kral bottle rifle. There is one regulator avaible for this purpose.(goes between bottle and receiver blockhttps://www.altaros.cz/en/kral-arms/79-6120-kral-arms-puncher-jumbo-airgun-regulator.html#/62-a )I'm wondering is there a guideline for the size of the resivor of regulated air vs calibre and barrel length? Or is the air chamber displacement of the unregulated (now the regulated chamber suscfient)

I have followed one person that added this regulator and the improvement was marginal. I'm suspecting the amount of regulated air was not suscfient. Or maby the rifle may need retuned. 
 
I added a regulator to a Daystate Regal. It was internal, so not the same application as in a bottle gun. But, one thing I will mention, the installation was done by someone knowledgeable (not me), and changes needed to be made in the transfer port size and some valve mods. When it was first added without the additional tuning, shot count was awful. In your application, the reg will not take up any existing air capacity, so these may not be issues, or additional tuning may be needed. Many things are not as simple as they seem. 
 
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There are some airguns where 12cc is enough to reach 80 Joule in.22 and then there are airguns where with same 12 cc in . 25 you will be able reach only 50-55 Joule. So it is not only about airchamber and its volume but complex issues.

We added airchamber for regulators with manometer https://www.altaros.cz/en/airforce/107-extra-airchamber-for-high-power.html which can increase regulators airvolume.
 
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