R3 .30 caliber problem and fix
The Problem:
I first noticed after about 2K rounds my velocity dropped off. That can be common, sometimes the HST needs to be readjusted. So I screwed in the HST 1/4 turn and I was back at the 890 fps I was before. I was fine for about another 150 rounds until the real problem started. The gun started behaving erratic when trying to find zero on my target. I put the Matador on the chrony and I found a strange phenomenon. When the gun was full (220 BAR) no manner where the HST was set the most I could get out of the gun was 750 fps. As the pressure in the reservoir dropped the speed conversely would rise until below 150 bar the speed was at 912. I concluded that the valve must be stuck and the reason for the change in speed is that the valve gets more resistance from the air in the reservoir the higher the pressure. The valve must be allowed to move freely in the regulator. The belleville washers are clean, the O rings are perfect and the regulator is assembled correctly. What I found was the valve stem was slightly bent. I know this problem developed over time because the gun was super consistent when I was new. . The valve stem was not too long as it was in Ed’s factory specs. I straightened the valve stem reassembled the gun and I still had the same problem.
The fix:
what I found was the valve stem was slightly oversized and a little rough. Because the stem is steel and the valve stem housing is brass the valve was getting caught/sticking and in my opinion the valve couldn’t open enough. When the gun fell below the 150 pressure setting the valve didn’t have to work as hard to move forward when the hammer hit the stem. I polished the valve stem with 220/20/400/600/800/1200/2000 grit paper on a lathe until I could see my reflection in the valve stem. The valve moved like it was on ball bearings inside the housing. The regulator gave me 24 shots with the average at 880 and the ES at 2.6 fps.
I welcome any criticism you may have about my fix. It’s is possible that I just got lucky. Hell, it’s better to be lucky than good anyway.
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That is awesome. Big ups to you guys!
DT
Now you’ll have it in time for our shoot!
I’m happy camper!!! this is the last update John sent me, there is more testing to be done but I’m really happy with this results, thanks John and Brian!!!! :8:
:8: :8: :8:
Just talked to John. Looks like a promising fix. I sent him the dimensions for the heavy hammer and proper regulator setting.
Some people just like to complain and very few are men of action. Lucky for us while the complainers are busy typing there is a fix coming for the gen 1 guns too.
Cool, will be following this one!
Gen 1 or 2 bro?
Gen 1
Gen One
Gen 1 or 2 bro?
The more I hear this story of the R3 .30 cal issues the more it reminds me the movie “The silence of the lambs” (without any offence meant) with Ed playing the role of Hannibal Lechter 😈
But instead of eating his preys he is currently having fun, drinking “Bier” and eating “Schweinebraten” in Nuremberg (paying the check with the money coming from the preys).
Ed you “Rusky Son of a B… Bullpup”, you have always played all of us :butkick:
and this is why we love you so much :wave: :wave: :wave: :bow: :bow: :bow: , you are a genius and award winning actor :8: :8: :8:
I sent My gun to John, he sent me a pic and an update of what he is doing to the gun, what great guy!
Well, looks like the .30 Gen 2 issues have been resolved after much effort by KS, John and Ernest. Good old American ingenuity and initiative. Good job boys.
I believe the Gen 1 owners will need the following:
1. Heavy hammer and 3mm valve (ID to Gen 2)
2. Revised 2mm valve with stronger steel and better attachment into DELRIN to work with standard hammer.
3. Regulator reset to 130 bar for either solution.
As ED has been unresponsive regarding the hammer weight I am pursuing #2 and #3 at the moment.
DT
I never thought I’d say this but
It looks like the fx impact may be the better gun at least Fred is working to resolve the issues it had and has
Communicated clearly the fixes to its dealers unlike
Tony Rudenko don’t know shit because Ed is piece of shit straight up don’t say anything he don’t even know
So yes FX is a way safer buy I would never again buy Edgun anything it’s what it now represents a arrogant prick who thinks he don’t even need to answer this or any thread pertaining to his faulty products horrible customer service
The worst in the business
Have had my eye over this rifle and FX Impact .30 for quite some time. Now it appears that the latter may be a better choice 🙄
I can fabricate a stronger valve by myself but can’t see any reasons to buy an expensive rifle just to fix it.
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Nice Renz nice