Have any of you p3 owners added the plenum extensions? If so, what kind of a difference did you see?
RTI Prophet p3 plenum
- Thread starter downcoyote
- Start date
P3 has original 70cc plenum but can add 2 extra 22cc extension for total of 114cc. Anybody done the plenum enlargement?
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I put a set in last weekend. Can't help with any data though. It won't stop raining long enough for me to get caught up on chores to have free time for fun stuff. If I can get my mowing done today (it's a-lot) I may be able to do some chrono work tomorrow.
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I often found myself with the same problem. Grass would get away from me and hide my backstop.
The wife failed to see the logic in my just mowing a strip from my shooting table to the backstop.
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My problem is how much I have to do and haven't been able to get too due to weather plus I'm an AG tech at a John Deere dealer in the spring time. Fleeting free time this time of year. Have about 10 acres to get mowed, started my garden and a couple deer food plots that I haven't been able to do anything to in 3 weeks now plus a piling list of other stuff.I often found myself with the same problem. Grass would get away from me and hide my backstop.
The wife failed to see the logic in my just mowing a strip from my shooting table to the backstop.
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i just installed the 2 i purchased from Tony @Talon Tunes
I noticed there was a small drop on the regulator, but still going the same speeds, so you will have more power at higher regulator settings.
haven't done any efficiency test
I noticed there was a small drop on the regulator, but still going the same speeds, so you will have more power at higher regulator settings.
haven't done any efficiency test
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Manabe
Thanks for your info
Indy
Sounds like your a busy man right now. Look forward to what you find out when you finally get to do some shooting
Thanks for your info
Indy
Sounds like your a busy man right now. Look forward to what you find out when you finally get to do some shooting
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Did some leg work with mine today. Didn't shoot for groups as it's intermittently windy then dead calm. Also bear in mind that this rifle isn't broken/settled in yet, even with todays shots I still don't have 250 total shots through it as I was waiting on these plenum additions. There are two FX slug groups as I spaced adjusting the parallax for the closer target and chrono work. Came set from dealer at 125 BAR reg pressure. Rifle is 25 cal Performance model.
I don't really expect to see too much of a change until I go up on reg pressure, do get more shots per fill now obviously.
As set from the dealer with an FX 25gr pellet it shot.-----My results with a JSB Exact King 25.39 after install and readjust to 125 bar reg pressure
1. 960-------6. 942________________________________________1. 964-------6. 959
2. 953-------7. 942________________________________________2. 959-------7. 964
3. 953-------8. 945________________________________________3. 961-------8. 965
4. 944-------9. 946________________________________________4. 962-------9. 963
5. 946-----10. 945_________________________________________5. 962-----10. 962
FX Hybrid 26gr Mk II .250 dia. (shot first and last slug groups as forgot to adjust parallax due to brain fart reasons)
1. 893-------6. 892______1. 890-------6. 891
2. 888-------7. 885______2. 897-------7. 880
3. 889-------8. 888______3. 893-------8. 893
4. 883-------9. 874______4. 880-------9. 897
5. 885------10. 893______5. 890-----10. 894
ZAN 33gr slug HP/HB .250
1. 850-------6. 855
2. 854-------7. 858
3. 859-------8. 849
4. 851-------9. 855
5. 853------10. 853
NSA 26.8gr .250 HS-HP-DB
1. 936-------6. 932
2. 935-------7. 934
3. 931-------8. 932
4. 932-------9. 935
5. 933------10. 927-flier in the group
I have other NSA slugs of this type on hand but have yet to figure out where I put them. Also have Corbin swage die to duplicate these in any weight I want but it took over 18 months (20 I think) to get them so had everything put away when the dies finally arrived and don't know when I will get around to setting that up and seeing how it works out.
The slugs need more speed, but had I been set up for groups it looks like everything, but the FX would have been one-hole groups minus the odd flier with the NSA.
Also looks like the more I shot the more the reg and pressures settled and as I said earlier it isn't broke in yet.
I don't really expect to see too much of a change until I go up on reg pressure, do get more shots per fill now obviously.
As set from the dealer with an FX 25gr pellet it shot.-----My results with a JSB Exact King 25.39 after install and readjust to 125 bar reg pressure
1. 960-------6. 942________________________________________1. 964-------6. 959
2. 953-------7. 942________________________________________2. 959-------7. 964
3. 953-------8. 945________________________________________3. 961-------8. 965
4. 944-------9. 946________________________________________4. 962-------9. 963
5. 946-----10. 945_________________________________________5. 962-----10. 962
FX Hybrid 26gr Mk II .250 dia. (shot first and last slug groups as forgot to adjust parallax due to brain fart reasons)
1. 893-------6. 892______1. 890-------6. 891
2. 888-------7. 885______2. 897-------7. 880
3. 889-------8. 888______3. 893-------8. 893
4. 883-------9. 874______4. 880-------9. 897
5. 885------10. 893______5. 890-----10. 894
ZAN 33gr slug HP/HB .250
1. 850-------6. 855
2. 854-------7. 858
3. 859-------8. 849
4. 851-------9. 855
5. 853------10. 853
NSA 26.8gr .250 HS-HP-DB
1. 936-------6. 932
2. 935-------7. 934
3. 931-------8. 932
4. 932-------9. 935
5. 933------10. 927-flier in the group
I have other NSA slugs of this type on hand but have yet to figure out where I put them. Also have Corbin swage die to duplicate these in any weight I want but it took over 18 months (20 I think) to get them so had everything put away when the dies finally arrived and don't know when I will get around to setting that up and seeing how it works out.
The slugs need more speed, but had I been set up for groups it looks like everything, but the FX would have been one-hole groups minus the odd flier with the NSA.
Also looks like the more I shot the more the reg and pressures settled and as I said earlier it isn't broke in yet.
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