Prod upgraded!

[DeutschKSK]

When I got home tonight from work I had a nice little package from Crosman waiting for me at my door step. My 20" Mrod barrel! *Yay* My Prod now has the Mrod barrel installed. Installing it was a piece of cake. Instead of using the Prod's shroud I used a 7.5 TKO break for it. The TKO works better in my opinion. Anyways its late, no light so I cant really test the barrel out tonight. But I will keep everyone posted.

Night,
Matt

[be4meliz]

Looks good, MATT. Are you busy Thur. or Friday? Time to shoot-got my carbine yesterday, so 2 more shooters

[Nomadic Pirate]

Cool,......Will Piatt is getting a Rifle barrel on mine, can't wait to get her back

[RatRacer]

That looks like a killer sniper setup. I can't wait to see what the fps gain amounts to. Sweet upgrade.

[grumpy]

That is exactly what I want to build or buy. Can you list all of the mods you have done, or did you have a thread started I missed. Thanks

Dave

[0351_Vet]

Nice.......

[only1harry]

If I had to guess I 'd say around 750-760fps with 14.x at full-power, if it's a .22.

I love the "AR6" look you guys have on your Prods   Ok, so we are still waiting for the test/chrony results(?)  

[DeutschKSK]

That is exactly what I want to build or buy. Can you list all of the mods you have done, or did you have a thread started I missed. Thanks

Dave

I got the Prod, Stock adapter from the guy who makes E-TACS, Discovery hammer spring ( For now I ordered a heavier hammer spring from a fella on this forum ) Marauder rifle barrel.. that's about it. I went back to the default air transport tube.

[DeutschKSK]

If I had to guess I 'd say around 750-760fps with 14.x at full-power, if it's a .22.

I love the "AR6" look you guys have on your Prods   Ok, so we are still waiting for the test/chrony results(?)  

With a .120 air transfer tube I was getting high 800s when I went back to the default one I was getting 740 range. I'll explain more.

[DeutschKSK]

I got this thing shooting pretty good for now. According the manual a 3000 PSI fill up requires both the hammer tension and throw to be at max. So 7 for hammer tension clockwise and 12 for the tension counter clockwise.

I did that with a .132 transfer port I was getting high 800s for my FPS but only 8 shots (3000 down to 21000 PSI ) I did not like that since I only use my hand pump.. I have a borrowed tank but that's just for filling up tanks that are empty.

Switched back to the default transfer port which is .80. Now from the same fill pressure of 3000 I got 710 FPS each shot the FPS is climbing a little as expected in this weird gun. I got 16 shots ( 3000 down to 22000 PSI ) my FPS towards 2000 PSI was around 740 FPS.

No matter what I do the FPS always climbs at 2000 PSI. I could get another 8 shots in that will be in the high 700 FPS range.

I just ordered a different hammer spring that I have in my Discovery, it's quite heavy so that might help out. I also ordered a HDD from AoA it replaces the hammer pin and reduces wasted air between shots. On average you'll get 40% increase on consistency and PSI usage per shot. That will get here Thursday, should be interesting.

Anyways, this little gun is grouping quite well with the Marauder barrel. I was happy that I did not get a crappy barrel from Crosman. With Crosman Premiers I group dime size at 20 yards. I tried out JSB 18 grain pellets and got a quarter sized group.

At my current set up I am sighted in at 20 yards, 1 mil hold at 50 yards 2 mil hold at 65 yards and 4 mil hold at 80 yards. 80 yards is my max range in my yard.

I hope that I can get a more consistent shot string with more tweaking of the settings.. it's frustrating but I'll get it down eventually.

Now to fill my gun back up and go relax!

-Matt

[MustangMike]

That looks so awesome

Could you swap a mrod airtank onto the prod ? Guess that would make a mprod

[DeutschKSK]

I thought you could.. but turns out you cant. The breach on the Prod have 4 set screws and the Mrod has 2 set screws.. so I doubt you can. You'd have to get the air tube, the hammer, fill nipple everything to go that way.

[MustangMike]

Oh ok just an idea but I guess one would end buying everything off a mrod cept for the trigger assy and stock..

Still high 7's to low 8's for fps is plenty good for small to medium sized game hunting

[darryl]

Man that's sweet. So the Mrod barrel is a drop-in fit? I take it the Mrod's shroud is not compatible with the P-rod. Please let us know how it performs for you after you install the new parts. Nice work.
darryl

[DeutschKSK]

Man that's sweet. So the Mrod barrel is a drop-in fit? I take it the Mrod's shroud is not compatible with the P-rod. Please let us know how it performs for you after you install the new parts. Nice work.
darryl

Yep drop in fit, made me happy did not have to mess with anything. I did not order the Mrods shroud.. I think it's a little more larger in diameter than the Prods shroud.. don't quote me on that but I think I read that somewhere. If true then it would not fit properly with the Prods barrel band. My TKO 7.5 muzzle break is doing a better job than the original shroud and Jim Gaska extension combined! My HDD from AoA gets here Thursday.. lucky me I have to work in the morning when the mail usually comes

-Matt

[darryl]

One thing I'd like to consider is the efficiency of the longer barrel insofar as using the air pressure, and seeing higher FPS. I seem to recall reading somewhere that the P-rod is a bet less efficient because of it's barrel length. That was familiar to me because at one time I owned a Crosman 2240, and read a lot about how a longer barrel yielded  higher FPS because it allowed the CO2 to expand more over the length of a longer barrel versus the OEM 7-inch barrel. Air has different properties versus CO2, but maybe it has to do with dwell time giving the air pressure more time to push the pellet to a higher speed before it exits the (longer) barrel? So maybe the properties of air under pressure benefit more from being able to expand most efficiently thought the pistol's TP at the lower pressure? How many shots are you getting?

[rsterne]

In a PCP, unless it is set for very low power.... a longer barrel will always give more velocity and efficient use of the air.... The more powerful the gun, the more effect a longer barrel will have....

Bob

[darryl]

Just to ask for confirmation, will the Mrod shroud work with the P-rod if the pistol has an Mrod barrel? I'm also asking this question over on the Marauder forum. I guess I could call Crosman.
darryl

[DeutschKSK]

Not sure, I don't know if they are the same diameter. Maybe someone here that has both will chime in. I would assume that they were the same.

-Matt

[RatRacer]

The Mrod shroud has a larger O.D. than the Prod. You would need a riser block on the Prod breech for it to work. Eyeballing mine, I'd say that it's about 3/16" larger.