RTI Some Mora

Can you maybe post a pic of where/how your's is installed? I went to install the .25 at the front of the additional moderator and first two shots just about shattered it into pieces. Some pics are in Tony's Mora thread.
I could be wrong but I think jaxjax was referring to the bushing at the proximal end of the shroud that can be removed to allow the barrel to be fully free-floating. Your’re talking about the washer at the distal end of the moderator. I’ll post a pic later but interestingly, my .22 came with the .30 collar installed and I didn’t see any others in the case. I thought about asking where the others are but since the gun is so quiet, why bother…
 
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Some non-subjective evaluation of the sound:

1 foot right of the front of the muzzle, the Mora metered at just under 72dB peak which is an average from 5 shots - at 900fps/72 FPE.

For comparison, my 700mm Taipan Vet 2 tactical .22, shooting Zan slugs at 53fpe, metered at just under 80dB under identical test setup.

The Vet 2 is by no means a loud gun. I’m happy using it in the backyard. While dB readings cant be used to compare one persons test to another, the point here is that one persons setup can be used to compare two different guns if the instrumentation method, distances etc remain constant. Also dB levels don’t scale proportionately with what a person actually hears and in that regard, an 8dB difference is huge.
 
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Can you maybe post a pic of where/how your's is installed? I went to install the .25 at the front of the additional moderator and first two shots just about shattered it into pieces. Some pics are in Tony's Mora thread.
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ACID TEST:

Just leaving the facility that has tested the Mora for “intrinsic” accuracy shooting the Altaros 40 grain .22 (217) at 900fps. I was not allowed to observe the testing because the equipment is “top secret!”. Nor can I disclose the company name 😩

However, I was given some generic insight: The gun is clamped to a bench at three points but a damper allows for controlled recoil. It came back with the rail removed, so apparently they didn’t like it either! (I’ll be leaving it that way for now) It is then monitored for movement using a high resolution IR laser motion capture to ensure that cocking etc does not produce movement between shots. The sensitivity of movement detection is 0.05MOA. Anything above 0.2MOA is considered a failed test. The testing takes place indoors at 100y with no forced air circulation. There is no target (so to speak) but an array of laser detectors in front of a trap. They granted me the special favor of one set of 8 shots into paper, sighted before the first shot with the scope (by them).

The Mora was tested at three starting tank pressures of 260, 220 and 180 bar, with 10 shots each and 30s interval between each shot. The ES was 2-3 within each set and 6 considering all of the shots. I did not have a sufficiently pressurized tank to go higher than 260 and nor did they, since their operation focuses on PBs.

The ballistics expert was, for some reason, reluctant to comment on the BC of the Altaros slug. In lieu of that he stated that the “corrected CD” was 0.128. I will investigate what that means…. However, he was very impressed by that and by the performance of the Mora and slug in the test, which was “far better than he had imagined” and “ competitive with OTS precision 22LR”. He was also staggered by the quietness in operation and smooth shot cycle. The trigger pull was dropped to 0.4oz for the test to minimize its effect.

Cutting to the chase, the result is as follows: At the three pressures tested, the intrinsic precision was measured at 0.371(260bar), 0.341(220bar) and 0.317(180bar). These are MOA values. Considering all three, which exposes the higher ES associated with a large range of tank pressure, the result is 0.474MOA. You could choose to subtract the movement error, which was averaged out at 0.07. My guess is the reg is not yet fully settled in, having shot <200 rounds since new. Over all tests there was approximately equal variation in the X and Y axes (windage and elevation).

It dawned on me as I chatted with him that I have not actually cleaned the barrel on this Mora (major Duh moment)! Hopefully Tony did that before shipping…

I can take my Taipan in next week for a comparative test but on first impression, and based on the insight of the expert, this seems to be a very good result. I don’t think the company is as excited as they were about producing slugs, given that the Altaros were so good, so this may not have done us any favors. I mentioned that there is certainly an opening for a high precision next-gen slug with a hollow point. He asked if the community might be interested in slugs with a powdered tungsten core which are non-Hp and therefore can have very high BC, but will break apart on impact. Sounds expensive…

Here are the 8 shots into my paper target that were taken in the clamps. Totally humbling! I will try more groups at 85 this evening with no rail….after cleaning the barrel 🫣

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Yes - definitely does. I was having trouble seeing through my scope at the range the first time around.

Next range trip I am going to try a bipod using a 60mm bottle pic rail rather than the front rail which has a little bounce to it.
I took my front rail off and installed a Area 419 arca rail on the gun. Too much bounce with just the rail also. I am looking to see if I can get a stronger arca rail. I think just a arca rail under the bottle would be better than the stock rail. I also think the stock rail is just too big.
 
I found a nice touch RTI did with the Mora. I'm not sure if anyone else has found it out yet. There is a place inside the pistol grip to store extra ammo.
View attachment 498904View attachment 498905View attachment 498906
The bottom pic is it with 6 .357 slugs in it.

Also I found a nice bag rider that fits the Mora perfectly
View attachment 498910
That is also on the original Prophet. Maybe the Priest too, but not sure.

Who makes that bag rider? I like simple designs.
 
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What is the difference between the Mora and a P3 with the 2 additional plenums in regards to power?
not sure how big the plenum is on the Mora ..i thought 125cc where the P3+2 plenums has 121cc
Thanks
Mike
Mike,

Detailed info on the Mora is scant but it has an adjustable valve, dual regs and barrel attachment system that can be partial or full floating. Plus a few neat little extras such as witness holes next to orings to detect leaks.
 
Yeah, it surely clipped but even a minor clip at 100+fpe would cause much damage. As I mentioned my shroud was loose on arrival and it is now very tight, as is the moderator. I keep checking that it isn’t working loose from the pressure during shooting.

Also, perhaps it’s no coincidence that my 22 came with only the washer for 30. Perhaps RTI sent out a memo to dealers.

For extra insurance, you could drill the 30 out a little.

Lastly, as you mention, there’s a chance that you have some poor machining/alignment in the system or even that your projectiles are clipping earlier in the system of baffles and deflecting into that plastic collar. It seems like it would be pertinent to inspect the baffle unit in the moderator for any signs of contact!
 
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