RTI Prophet Performance 2 .177 - Lots of power !

[Spinach]

The prophet 2 has a threaded transfer port just like the original.
Time for testing the .177 slugs, well not really, still waiting for a new assisted valve.

 

[Simi]

I have made a restrictor from an m8 bolt. First one 2mm hole. Shot 7.1 gr 80 bar 790 ft/s. Then made another one. 2.5mm. 7.1gr 80 bar 870 ft/s. With the H&N Baracuda Hunter 10.49 gr 80 bar 780ft/s. Same pallet 100 bar 830ft/s.
Next, I will trie to make an 3mm restrictor. I post the results here.

 

[Simi]

Transferport

Restrictor

3mm, 2.5mm, 2mm

I like the 3mm. Can adjust to a lot of power and stil shoot 7.1 gr at 80 bar. The new valve is more for high power. The speed is set with the regulator. Maybe there is a way to adjust the transfortport from the outside if you want more adjustable low power. On the other hand, I like high power. Here are some results.

3mm port, 80 bar, 7.1gr, 970 FPS
3mm port, 80 bar, 10.49gr, 860 FPS
3mm port, 100 bar, 10.49gr, 920 FPS

If you want to shoot .177 light pallets use a 2.5 mm restrictor.
If you want to shoot .177 fast use 3 mm restrictor.

If you want a restrictor let me know.

 

[Spinach]

View attachment 335864
Transferport

View attachment 335865
Restrictor
View attachment 335866
View attachment 335889
3mm, 2.5mm, 2mm

I like the 3mm. Can adjust to a lot of power and stil shoot 7.1 gr at 80 bar. The new valve is more for high power. The speed is set with the regulator. Maybe there is a way to adjust the transfortport from the outside if you want more adjustable low power. On the other hand, I like high power. Here are some results.

3mm port, 80 bar, 7.1gr, 970 FPS
3mm port, 80 bar, 10.49gr, 860 FPS
3mm port, 100 bar, 10.49gr, 920 FPS

If you want to shoot .177 light pallets use a 2.5 mm restrictor.
If you want to shoot .177 fast use 3 mm restrictor.

If you want a restrictor let me know.

Nice work, . Thanks Simon.

Like a idiot I assumed the TP was 7mm like the p1. Now I know it's 8mm.

More shopping and drilling,

I'm probably going to just start with 3mm, heavy pellets and light slugs.

 

[Simi]

Nice work, . Thanks Simon.

Like a idiot I assumed the TP was 7mm like the p1. Now I know it's 8mm.

More shopping and drilling,

I'm probably going to just start with 3mm, heavy pellets and light slugs.

I have noticed after shooting a lot with the .177. Use 10 Grain or higher. No need for restrictor. The heavier knockout slugs 13Gr work better, then the 10Gr.

 

[cavedweller]

At my range yesterday shooting with a couple of friends and one of them brought his new RTI Prophet 2 Performance Compact At the end of the day, we decided to test the max power output of this new edition with the new valve - He was shooting 13 gr slugs at the same velocity as we did with the RTI Prophet 1, but he was only at 115 bar and we were at 145 bar !

Well, he cranked up the regulator to the max of 180 bar and loaded the ZAN 20 gr slugs The specs at RTI says 30-50 Joules or 22-37 FPE


View attachment 279706

63.05 Joules and 46.5 FPE !

Huge numbers for a .177 for sure ! Amazing !

But At what point / speed does your accuracy fall off?

 

[Spinach]

I have noticed after shooting a lot with the .177. Use 10 Grain or higher. No need for restrictor. The heavier knockout slugs 13Gr work better, then the 10Gr.

Nice to know, thanks.
I have plenty of 13gr slugs, jsb and Zan.
Testing soon .
Wife has gone to the UK , time for me .

 

[Spinach]

I have noticed after shooting a lot with the .177. Use 10 Grain or higher. No need for restrictor. The heavier knockout slugs 13Gr work better, then the 10Gr.

Simon, what regulator pressure are you shooting the 13gr at?
Had a try today, many many reg settings, it was like a shotgun pattern.
The barrel shoots baby slugs good in the P1, not so in the P2.
Maybe time to swap or test the regulator.
It's a head scratch.
Cheers Gary

 

[Simi]

Simon, what regulator pressure are you shooting the 13gr at?
Had a try today, many many reg settings, it was like a shotgun pattern.
The barrel shoots baby slugs good in the P1, not so in the P2.
Maybe time to swap or test the regulator.
It's a head scratch.
Cheers Gary

80 bar with no ristriction

 

[Spinach]

80 bar with no ristriction

Thanks, I'll try that at the weekend.

 

[Mrshosted]

But At what point / speed does your accuracy fall off?

I’m going to go out on a limb here.
I think the point of this thread is to say. The Prophet 2 have the power capability to push any slug made! At any speed in any caliber.
Allowing you to find the optimal balance of speed and slug for accuracy.

I’m not expecting in this scenario that accuracy was noted great.

Mont