Talk to me about pumpers…

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   Just for the hell of it I ran some shots on my 362 tonight. It has had some work done on the valve, hollow probe, increased hammer tension, reasonably straight forward stuff. At 16 pumps it shot 21.3 ft/lb, but there was still a little bit of pressure left, so there's not much point pumping more until until the valve can dump it better.
Using 18.52 grn H&N

Pumps            ft/lb
4                      9.38
5                     11.32
8                     15.6
9                     16.9
10                   18.01
12                   19.5
16                   21.3

So as BC Clark says, there is really a lot more that could be done to develop pumpers, but at 4 pumps, that's a respectable bit of power I reckon.  I see they have put out a pcp version of the 362 called 3622 I think.

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Pauly5 Members Profile Send Private Message Find Members Posts Add to Buddy List Forum Moderator Joined: 10 Mar 2013 Location: Titahi Bay Status: Offline Posts: 1410	Post Options Post Reply Quote Pauly5 Report Post Thanks(0) Quote Reply Posted: 11 Mar 2024 at 9:31pm
	Just for the hell of it I ran some shots on my 362 tonight. It has had some work done on the valve, hollow probe, increased hammer tension, reasonably straight forward stuff. At 16 pumps it shot 21.3 ft/lb, but there was still a little bit of pressure left, so there's not much point pumping more until until the valve can dump it better. Using 18.52 grn H&N Pumps ft/lb 4 9.38 5 11.32 8 15.6 9 16.9 10 18.01 12 19.5 16 21.3 So as BC Clark says, there is really a lot more that could be done to develop pumpers, but at 4 pumps, that's a respectable bit of power I reckon. I see they have put out a pcp version of the 362 called 3622 I think.

RangerPete Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 18 Apr 2023 Location: Cambridge. Status: Offline Posts: 884	Post Options Post Reply Quote RangerPete Report Post Thanks(0) Quote Reply Posted: 12 Mar 2024 at 6:45am
	Interesting thanks Pauly.
	Walk quietly, but carry a big stick.