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General Category => Airgun Forum Feedback, Suggestions and Help => Topic started by: cpt_sfc on July 15, 2016, 07:58:28 AM

Title: mrod to 30 cal ?
Post by: cpt_sfc on July 15, 2016, 07:58:28 AM
who does this conversion with a barrel full length 24 inch.?, for 30 cal pellets and tune up for power HUNTING only , Gen 2 syn stock. current .25 cal.
 thank you
Title: Re: mrod to 30 cal ?
Post by: caniborrowsomeammo on July 15, 2016, 12:23:38 PM
Dillon (Dairyboy) just did the switch. I think he's still honeymoonin'. Search his posts.
Title: Re: mrod to 30 cal ?
Post by: Monkeydad1969 on July 17, 2016, 07:25:31 AM
Roy at Mtn Air has the barrel and bolt conversion, simple drop in.  I have the barrel from him and it's real accurate.  Someone here could probably help you out with the power tune.  Only thing, the barrels from Roy are 20", I am sure he can get you a 24" one. 

Talk to Travis about this.  He is worth a little of your time.

Joe
Title: Re: mrod to 30 cal ?
Post by: Dairyboy on July 18, 2016, 07:06:43 AM
I'm back!!! Roy at mountain air is where I also got the bolt and barrel very easy drop in. I wanted it at 20" but i believe you can order them at any length. Another member I talked to wanted to do the same and he ordered a 24" barrel from him so I know it's possible. As for a power tune what are you looking for power wise? I went with a hill .30 valve but if you want it for more power 90fpe is all I've tested to but I want shot count and can get 5 shots at 85fpe within 1.5% ES.
Title: Re: mrod to 30 cal ?
Post by: cpt_sfc on July 21, 2016, 07:03:46 AM
Thanks for the reply I will call mtn air. Now for the power level , I thought a 24 inch barrel would allow a tune to be higher power with less air, but I would like the 900s FPS range with 44 or 50 gr pellets . And by drop in , how easy drop in.
thanks
Title: Re: mrod to 30 cal ?
Post by: Dairyboy on July 21, 2016, 07:14:57 AM
I've only shot 44gr so far but have gotten them to 930 with the 20" barrel so with 24" would be even higher and will be more efficient on air. For the barrel by drop in is as easy as it gets. Simply replace the barrel he does all machining so it's a simple swap. If you've ever taken the gun apart it takes maybe 10 min to swap the barrels.
Title: Re: mrod to 30 cal ?
Post by: cpt_sfc on July 21, 2016, 07:49:25 AM
OK I called him and sent e mail . It is in the works He will provide a 26.5 inch barrel that will go to end of shroud. Is there a place to get the tune up done, Does Travis do it or can a war valve take cre of it. I ah'm a getting old and my hands are not what they used to be. compliments of the army so I don't have full use of them anymore. Hell if my wife's not home I don't even have a date on sat. night. But I can still shoot. Thank you for the help.
Title: Re: mrod to 30 cal ?
Post by: Dairyboy on July 21, 2016, 08:52:31 AM
First off thanks for your service and sorry to hear that your hands are messed up cause of it. Second Travis would be a good guy to call for this. A war valve will work for what power you need but if you don't feel comfortable having him do it is best. I'm glad I can help in anyway
Title: Re: mrod to 30 cal ?
Post by: cpt_sfc on July 21, 2016, 10:38:08 AM
Thanks for the help.  Also  for the thanks on army, but it was my own dumb ass choice of what I did there, that caused most of my issues , not really the army's.  I did what every one says not to do . I VOLUNTEERED FOR IT.  serving the country and others has always gotten me into trouble one way or another and after 21 years in it,  got to be a habit, I would have stayed longer but couldn't pass the pt test any more. I still take my oaths of office most serious even though some do not.  Thanks for all the help and Tell Travis I like the flex.
Title: Re: mrod to 30 cal ?
Post by: jayman07770 on July 31, 2016, 11:37:00 PM
I'm using a 24" .30 barrel on my mrod conversion with a hill .30 cal valve.  Haven't done much tunning on it because it's definitely not for backyard friendly air rifle. Even with the 28" shround it still barks pretty loud. I've gotten 939 FPS with the chrony 15 feet away so it's much higher if the reading was near the muzzle. I also did the carbon fiber tank with JDS adapter and regulator. Had the send the regulator back since it was reading 2,000 psi and I request 2,200 psi. I'll do more test and tune when my regulator comes back.
Title: Re: mrod to 30 cal ?
Post by: cpt_sfc on August 12, 2016, 06:14:11 PM
What would you all consider the war valve or hill for the 30 mrod.
Title: Re: mrod to 30 cal ?
Post by: Dairyboy on August 12, 2016, 07:43:29 PM
I have the Hill valve in mine and love it. I've hit 90fpe with it. Not sure how much fpe your looking for
Title: Re: mrod to 30 cal ?
Post by: cpt_sfc on August 12, 2016, 09:29:32 PM
I want it to leave at my cabin , Critters, Fox, coyote, coon, skunk etc all in the proper season of course. I have the barrel and port from mountain air now just have to put that together. But unsure of which valve as I want it to work every time.  Would like to get at least 90 fbe or better. Have both 44 and 50 gr pellets. Thanks for the feed back.
Title: Re: mrod to 30 cal ?
Post by: grumpy on August 13, 2016, 03:08:16 AM
Just remember that generally pushing a pellet faster than 950fps can lead to poor accuracy. The pretty much equates to around 95-100 fpe tops. If you want more power I’d say you’re going to need to try cast bullets.
Title: Re: mrod to 30 cal ?
Post by: cpt_sfc on August 13, 2016, 06:57:38 AM
That is all I need,  as I have a Daystate 303,(it does the job) but I don't leave it in DA UP, as if someone breaks in I would rather lose the mrod. Also the Daystate is a ton of gun to carry.
Title: Re: mrod to 30 cal ?
Post by: grumpy on August 13, 2016, 10:22:49 AM
Shame as the Wolverine is perfect for that. Love mine !
Title: Re: mrod to 30 cal ?
Post by: cpt_sfc on August 13, 2016, 12:42:33 PM
Yep I love mine also,so I don't want some lowlife stealing it. I have all locked up in gun safes but there is no one around to hear if you used dynamite let alone power cutters. Hence I don't leave much of value there. It is a shame.
Title: Re: mrod to 30 cal ?
Post by: grumpy on August 13, 2016, 06:22:03 PM
Sucks man. That gun was intended to be a hunter and ya can't even use it for that :(
Title: Re: mrod to 30 cal ?
Post by: cpt_sfc on August 14, 2016, 08:52:41 AM
Oh I still use it below the bridge as my family live around me and keep an eye out. It has taken a lot of varmints around here and is better then a subsonic 22 , at 50-70 yds if you miss the head of anything it is your fault. I routinely take out chips and reds at 50-70 yds with it (30cal turns em inside out). When I walk the woods I use an airforce escape , it also is great for the purpose as it will take any varmint around here, and it is light ,.25 cal and able to put the pill on the noggin at 60-70 yds. My back stop here is thous acres of nothing or I use Kevlar back stops around the barn and house.
Title: Re: mrod to 30 cal ?
Post by: cpt_sfc on August 17, 2016, 01:02:02 PM
Ok barrel in drilled out air stripper to .500 and slid down shroud, drilled out end cap to oversize and screwed in just miss the muzzle. Shoots very well at 25 yds , like one hole. FPS is 688 - 694 I can't get it over that. So whats next to get it up to 800-900 FPS , is stovk valve so far gen 2. RE-CAP mountain air barrel, went in just like you all said.
thanks for feed back.
Title: Re: mrod to 30 cal ?
Post by: wilsonj1018 on August 17, 2016, 01:29:07 PM
valve porting time  ;D, or order a aftermarket valve.
Josh
Title: Re: mrod to 30 cal ?
Post by: Dairyboy on August 17, 2016, 02:29:50 PM
It's fun shooting those massive pellets in the same hole  ;D yeah either valve work or aftermarket like Josh said. I went aftermarket as I don't trust myself to do the valve work
Title: Re: mrod to 30 cal ?
Post by: cpt_sfc on August 18, 2016, 09:42:32 AM
OK new valve on the way. Any vids  out there to show how to install.
thanks
Title: Re: mrod to 30 cal ?
Post by: cpt_sfc on August 18, 2016, 03:50:37 PM
Dairyboy that link went to an NRA ad. But thanks . I have been Lifer NRA.
Title: Re: mrod to 30 cal ?
Post by: Dairyboy on August 18, 2016, 04:24:37 PM
My apologies...Try this one

Title: Re: mrod to 30 cal ?
Post by: cpt_sfc on August 18, 2016, 05:45:20 PM
Great thank you !!!!!!!!!.
Title: Re: mrod to 30 cal ?
Post by: cpt_sfc on August 20, 2016, 01:35:54 PM
I got the 30 cal valve in today for the mrod. That was quick service. Next week I will put it in and let you all know how it works out. I want to watch the vid on it a couple more times. I picked up a 12.5 spring also , any Suggestions on were to set it, to start out.
Title: Re: mrod to 30 cal ?
Post by: Dairyboy on August 20, 2016, 07:37:47 PM
Depends. What I did was crank it to the highest power I could and see what the string looks like. I then backed it off until I got a nice tight bell curve at about 85fpe and then got one at 77fpe and i got a good 69fpe tune as well. But I have a different spring so I'm unsure what your settings would be.
Title: Re: mrod to 30 cal ?
Post by: cpt_sfc on August 25, 2016, 12:53:50 PM
OK I got the valve in and no leaks. FPS show 852 start down to 784 after 12 shots. Nice tight group. Used the large port that came with the hill valve, used the 12.5 spring. All adj at max. Should I turn it down more. When I did back off FPS dropped to737 but only went to 694 after 18 shots. I have a tank to fill it and plan on using for hunting only.  Will the valve wear in a little. I also thought the larger air transfer port a little flimsy made out of alum. But so far so good about 70 FPE.
Title: Re: mrod to 30 cal ?
Post by: Dairyboy on August 25, 2016, 01:30:05 PM
What fill pressure are you starting at?
Title: Re: mrod to 30 cal ?
Post by: cpt_sfc on August 25, 2016, 02:21:03 PM
3000 Psi per the gauge on tank as most of my crosman pcps will not show correct psi so I use one I bought on the tank side and it matchs up with all but the crosman  pcps ,the crosman dial shows hi side at red.
Title: Re: mrod to 30 cal ?
Post by: Dairyboy on August 25, 2016, 03:09:14 PM
Ok well them I'm confused with the 26.5" barrel you should be getting close to a 100fpe. Do you know what size the barrel port is? And the TP size?
Title: Re: mrod to 30 cal ?
Post by: cpt_sfc on August 25, 2016, 04:49:15 PM
No but I think your on track as the port and the port thru the receiver area still is a standard size I believe. I will work on a larger transfer port and seal , I saw one somewhere I just need to find it again then I can open up the barrel port and when I finally got the barrel all he could make was a 24 inch barrel, I still think it is capable of more and I think the port is it.
thanks
Title: Re: mrod to 30 cal ?
Post by: Dairyboy on August 25, 2016, 05:14:24 PM
Yeah I know hill has a .187 port that works great with his .30cal valve. My barrel port is opened to .187 as well which is why cranked up I can get 90fpe
Title: Re: mrod to 30 cal ?
Post by: cpt_sfc on August 25, 2016, 05:49:07 PM
Ordered 2 Ports in case I screw it up or I will put one in the .25 m-rod. Thanks
Title: Re: mrod to 30 cal ?
Post by: cpt_sfc on August 29, 2016, 01:48:18 PM
Ok got the air port in from hill, seems to work great . first shot at 3000 psi was 983fps, 9th shot at 794 FPS now I will tinker with settings will let you know. I would not recommend the alum port for this as it is to thin and the air collapsed  it,  and sucked the rubber o ring seal up and out the bore. Weird !!! I will run a string this week and post it. Thanks for all the help.
Title: Re: mrod to 30 cal ?
Post by: Dairyboy on August 29, 2016, 02:09:19 PM
Now that's what I like to hear! Now just get it tuned up to how you want it and enjoy it!
Title: Re: mrod to 30 cal ?
Post by: cpt_sfc on September 03, 2016, 02:07:26 PM
OK all, no targets yet but have been shooting it around the acres. It is loud. 24" barrel 3000 PSI start fill. FPS IS!!!, Hunt gun so only concerned with 6 shots. 30 cal. 44.75 gr pellet lubed with bike  chain wax. Shot#
1. 992 fps
2. 973
3. 964
4. 940
5. 932
6. 911  It gets a closer es as you drop another 6 but I only need 6 walking in the woods may only shoot 1-3 shots. FPE is 97.8 for shot #1 down to 82.4 for shot6.That is per AGD chart. first shot varies from 992-994 ?. One foot from muzzle.
Title: Re: mrod to 30 cal ?
Post by: Monkeydad1969 on September 04, 2016, 07:19:01 AM
AV. 952fps
AV. 90fpe

I seem to have an issue with those numbers.  I wan't you to take apart the action from the stock, then...oh, that's just to much for me to explain.  Just send me the rifle and let me shoot it this season.   ;D

Joe
Title: Re: mrod to 30 cal ?
Post by: Dairyboy on September 04, 2016, 07:49:36 AM
Great numbers! I just played with mine but went the opposite way in power. 15 shots at 3.2% ES at 67fpe on a 2700psi fill. More of a Polymag tune as with my barrel accuracy tightened up real nice under 850fps with the Polymags. My JSB tune I get 10 shots within 1.4% ES at 77fpe!
Title: Re: mrod to 30 cal ?
Post by: cpt_sfc on September 05, 2016, 08:48:06 AM
I need a shallow cap to screw into shroud, barrel almost to end. Have about 3/8 inch to muzzle can be large center hole as just a thread protector, air stripper was drilled out and sld about 2 inchs back on barrel to keep O- ring in contact with shroud and muzzle steady. Will attempt pics. One group at 25 yards off hand leaning on door frame as pressure dropped 2 shots went high, 6 tot. Also shot of muzzle. Will try 50 yd group next but from sand bag.
Title: Re: mrod to 30 cal ?
Post by: cpt_sfc on September 05, 2016, 08:49:10 AM
other pic muzzle end
Title: Re: mrod to 30 cal ?
Post by: cpt_sfc on September 10, 2016, 11:12:36 AM
OK all this is a 50yd group, cold not a pic of litter. Walked out put up target. filled m-rod to 3000PSI loade 6 Vortex 44.75 gr pellets. Shot 6 times with sand bag only under forearm from 1st shot 983FPS to 911FPS at 6th shot, same POA/POI as 25 yd. quarter next to group for ref:. 4x AIM 29 dollar scope from crossbow, kinda heavy cross hairs. Hope pic works.
Thanks to all that encouraged me.
Title: Re: mrod to 30 cal ?
Post by: caniborrowsomeammo on September 10, 2016, 11:35:59 AM
Hell, I wouldn't complain about that group for a hunting rig. Especially with 4x and heavy reticle.
Title: Re: mrod to 30 cal ?
Post by: Dairyboy on September 10, 2016, 01:33:33 PM
Nothing wrong with that whatever your hunting will be down for the count!