http://www.network54.com/Forum/79537/message/1315440196/Poor+man%27s+M-Rod%2C+P-rod%2C+etc-+%26quot%3BRegulator%26quot%3B+explained+%28Long%29
All this is for big power, and you'll need to open the transfer port to max. For FT, if you are shooting .22, look for 610-615fps w/13.34gr, 14+gr,600-605. If using .177 for FT, up to 685fps w/7.9gr. For FT, the transfer port need not be any bigger than stock or smaller in .177.
My P-Rod has been converted to .177 with the o-ring mod. .076 id transfer port. I don't recall
the hammer and stroke adjustments. I'm getting 685fps avg for 40 shots w/20+ spread. I'm not
a tinkerer so I left it at that. It can be WAY better.
Since PFT is only 30yds max, even a 30 spread won't show up on target.
This is an excellent way to tune all Marauders. If you have a regulator installed AND the o-rings,
60+ shots are the norm with a near non-existant spread. (We have a Marauder rifle shooter in our
club who gets just that, 60+ shots with a 5 spread.)
Let me know if I can be of more help.
bstaley did all the work, I'm just passing it on. Good luck!
Head Gopher and Assistant
Match Director Ashland Air Rifle Range
Ashland OR
Regards,
Mark Gravelle
