WAR valve tuning thread

The Benjamin Marauder air rifle can be tuned. You can adjust the trigger and the rifles velocities for different fill pressures.

Re: WAR valve tuning thread

Postby ajshoots » Sun Feb 01, 2015 9:07 am

That is very cool GH. I studied alot of ancient history when in college, and remember reference to these dogs. Guess I didn't realize they still existed? Around here our coyotes probably average 40lbs. I have never killed a mature yote that was under 38lbs and most being above 40lbs. There are a few groups that use packs of dogs to hunt coyotes but none possess "kill" dogs such as yours. Most use hounds(walkers, blues,reds, and such). Has to be amazing to watch a dog like yours in action!! Thanks for sharing!!
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Re: WAR valve tuning thread

Postby Gazelle Hound » Sun Feb 01, 2015 10:44 am

RayK,
The hunt is exciting, the kill generally quite uneventful. A Saluki has a very long jaw opening, although narrow in jaw width, opens very wide. It easily takes a Pit Bulls head into it's mouth, and has much larger teeth than a Pit.

To kill It takes the preys' snout into its mouth, while breathing through its own nose, suffocates it. Or it crushes the preys' windpipe until suffocated. No marks, no blood, just dead.

Their appearance is quite deceiving, they are very powerful, amazingly fast, and their thin bones are tremendously stong... Almost unbreakable.
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Re: WAR valve tuning thread

Postby jruther2 » Mon Feb 02, 2015 5:59 pm

Ok, been away for a couple of weeks and just wanted to check in with some of my preliminary results with the Gen 2 NBH.

I'll let the spreadsheet speak for itself.
**Note that it should say Gen 2 NBH hammer in the spreadsheet**

Red is max velocity, green is within 3% of max, and pink is within 4% of max. I added the 4% highlights because some people are happy with a 4% spread. I'm looking at you Ray... :mrgreen:

I'll be going for some higher power strings later. Right now I'm just getting a feel for how the rifle behaves with this hammer at some various settings.
Last edited by jruther2 on Wed Feb 04, 2015 12:40 pm, edited 1 time in total.
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Re: WAR valve tuning thread

Postby RayK » Mon Feb 02, 2015 9:23 pm

It's great to see you back!

So how does the NBH compare to the Stock hammer?

More good shots? Quieter?

Seems much quieter to me, but I can't say if it gives more good shots or not as I changed too many things at the same time going with all the WAR parts, so I boosted the power a whole ton at the same time.

Ray
25 W-rod | 08 shots @ 70 FPE -2% | 3100 fill
25 M-rod | 40 shots @ 35 FPE -4% | 3100 fill
22 M-rod | 51 shots @ 25 FPE -4% | 3100 fill
17 M-rod | 50 shots @ 19 FPE -4% | 2500 fill
25 P_rod | 16 shots @ 29 FPE -3% | 2100 fill
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Re: WAR valve tuning thread

Postby jruther2 » Tue Feb 03, 2015 6:53 am

RayK wrote:It's great to see you back!

So how does the NBH compare to the Stock hammer?

More good shots? Quieter?

Seems much quieter to me, but I can't say if it gives more good shots or not as I changed too many things at the same time going with all the WAR parts, so I boosted the power a whole ton at the same time.

Ray

Thanks Ray, it felt good to be tinkering again!

Honestly, I've never used the stock hammer with the WAR valve so I can't answer your question precisely at this time. Of course we all know by now that the NBH is quieter than stock and the Gen 2 NBH is just as quiet.

I can say that the Gen 2 NBH is giving me more shots within a given ES range. For example, the Gen 1 NBH would consistently give me 20 shots within a 3% ES over a broad range of power and fill pressures while the Gen 2 NBH is giving me 36 shots within 3% at 43 ft-lbs of energy off of a 2500ish psi fill. The only way I could come close to that with the Gen 1 NBH was by using the BStaley o-rings mod. This is much easier as you just drop the hammer in and start adjusting hammer spring tension to get into the desired power/fill range.

I suspect that the shot strings will shorten a bit as I get into the higher power tunes but I don't care to speculate too much on that...I'll let trigger time and the chrony be the judge.

So far, I'm loving the results I'm getting from this new design. I am wondering though if peak power is going to be somewhat limited. Again, further testing will tell the tale.
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Re: WAR valve tuning thread

Postby RayK » Tue Feb 03, 2015 2:24 pm

Thanks for the info! I think I need a NBH V2.0 hammer.

Ray
25 W-rod | 08 shots @ 70 FPE -2% | 3100 fill
25 M-rod | 40 shots @ 35 FPE -4% | 3100 fill
22 M-rod | 51 shots @ 25 FPE -4% | 3100 fill
17 M-rod | 50 shots @ 19 FPE -4% | 2500 fill
25 P_rod | 16 shots @ 29 FPE -3% | 2100 fill
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Re: WAR valve tuning thread

Postby oldpro » Tue Feb 03, 2015 7:54 pm

Jruther2 that is outstanding and once again better than my own tune by a few points. The hammer NBH is good to about 60fpe as far as I can tell after that the spring preset alone will do the job of not allowing bounce so I would use a stock hammer past 60 FPE as to avoid hammer lock up that can result from to much spring tension though many customers have no problem at all but to be honest I use a stock hammer past 60fpe. The new hammer has a spring poppet that is adjustable and can deliver incredible shot strings.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
For WAR products, please visit my vendor shop on the Marauder Forum http://www.marauderairrifle.com/shops/w ... ir-rifles/
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Re: WAR valve tuning thread

Postby Family Man 811 » Tue Feb 03, 2015 9:14 pm

Okay...yup now I'm impressed. Damn it all...I'm gonna end up rebuilding my .25 again... ugggh ;)
.25 M-rod Bullpup-16shots@55FPE/1.8%(16 fps)ES
.25 P-rod Carbine-21shots@30FPE/4%(28 fps)ES
[16shots@30FPE/2.7% (20 fps)ES]
.22 D-rod Custom-20shots@22FPE/4% (30 fps)ES
.22 1322 Carbine Highly modded 17FPE on 15 pumps
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Re: WAR valve tuning thread

Postby oldpro » Tue Feb 03, 2015 9:59 pm

Been waiting for that call Family man! Have doctor visit tomorrow(follow up from surgery) but Wednesday on Ill be around. Wait till you see what Ive been working on tee hee hee :D Dont rebuild yours its a dam good shooter just build another one I know where you can get a good deal on refurbs.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
For WAR products, please visit my vendor shop on the Marauder Forum http://www.marauderairrifle.com/shops/w ... ir-rifles/
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Re: WAR valve tuning thread

Postby RayK » Wed Feb 04, 2015 11:20 am

That tune gives 40 higher power shots! And from a 2600 psi fill! That is really impressive!

I got 40 good shots in my 25, but peak velocity with Kings is only 800 FPS and I have to fill to 3100 psi. You're shots are 50 to 80 FPS above my peak!

We need to give some award for such a tune!

Ray
25 W-rod | 08 shots @ 70 FPE -2% | 3100 fill
25 M-rod | 40 shots @ 35 FPE -4% | 3100 fill
22 M-rod | 51 shots @ 25 FPE -4% | 3100 fill
17 M-rod | 50 shots @ 19 FPE -4% | 2500 fill
25 P_rod | 16 shots @ 29 FPE -3% | 2100 fill
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