Stefan77
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Posts posted by Stefan77
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I am not a thick guy and I run 6 mags, and did before the rule change using Blade Tech mag holders. I also usually use a Barney mag since I mostly shoot Outlaw and sometimes we run some long stages.
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On 12/28/2022 at 7:35 AM, DPA said:
Are you using the stock SCS?
Yes.
I haven't played with the springs yet.
I did find that with the 115grn ELLEY that when I cant the PCC around a barricade (ejection port up) I had a failure of the round to fully eject. I'll probably try to recreate the incident and start playing with spring weights.
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On 11/29/2022 at 12:04 PM, mrvip27 said:
Thanks for the input. Keep us updated on the Eley.
So I tried the Eley on the 60*. It was about 17F before windchill so all I wanted was warm barrels.
Eley 115grn PCC with 60*- I think this is my next ammo. Shoots really well, locked the bolt back and felt really nice imo.
Eley 124grn PCC- shot like a slug with the 60*. I felt like I could really outrun the 124 with the 60* and it would not lock the bolt back and I am not a fast shooter. It would probably be really nice with a 70* cam but I didn't try it because it was cold outside.
Eley competition pistol in 115grn was really jumpy, punchy locked bolt back with 60*
124grn competition pistol was actually a little punchy bolt locked back with 60*
147grn competition pistol wasn't bad, it locked the bolt back but not consistently.
I only received 50 round boxes of each 115, 124 grn PCC and 115, 124 and 147 grn competition pistol.
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On 12/20/2022 at 12:58 PM, Z-Chaos-Factor said:
Okay maybe I'm being a little too analytical here but here me out.
My shooting buddy mentioned that my Jp5 is noticeably jumpier with more muzzle rise than when I got it. I went back to the match footage and he seems to right. Its a pretty noticeable change actually.
Since the original footage I switched from the 80 locking piece to a 70 locking piece and put the heaviest Ar10 spring in the SCS with supervel 115gr. Basically following Max's setup. Also switched to a lighter smoke handguard instead of the heavier JP handguard it came with.
So my thinking is that maybe by changing the locking piece there is less gas coming out of the barrel to work the muzzle device and its not pushing the muzzle down like it was previously. I know its contradictory to the popular opinion that 9mm doesnt have enough gas to make a comp work.
Will be going to do some testing soon but I was curious if anyone had any other ideas on why the changes I made would make the gun so jumpy as opposed to stock.
Try 60* with 115's and stock spring. Adjust from there IMO. I wouldn't change stuff off the bat without figuring out my baseline and not change multiple things at once. Make one adjustment at a time is my recommendation.
Also, I found the 70* to be a bit more "punchy" as opposed to 60* with 115's.
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I found that a lot of 115grn stuff works with the 60*. I had posted this in the other JP5 thread.
Here is some of what I have tried so far. I still have a bunch more testing to do and this is all subjective with what feels best.
60*:
115grn Blazer Brass cycled and bolt would hold open (I had a couple of times that it didn't hold the bolt open).
130grn Syntech, bolt cycled but would not hold open.
150grn syntech, bolt would not cycle
70*:
130grn Syntech I noticed a little more recoil, bolt cycled and held open
150grn Syntech, bolt cycled and it held open but I can't remember if it was consistent.
As far as what felt good to me?
The 115grn BB felt really nice. Cycled fast and felt light (what I mean by light is that it wasn't a heavy'sh push)
The 130grn Syntech was pretty good, it shot well. I was happy with it but I don't like the bolt not holding open.
150grn Syntech felt a little sluggish when shooting it.
These are just my "feels" so not a really objective thing.
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Just called CZ customer service, the DWX has been officially released and a shipment just went out today.
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I am still testing out various types of ammo when I can. I posted this in the JP5 thread. I still have to test my Eley sample pack that arrived this week.
Addition 80* Cam worked well with my 150grn Syntechs but I honestly like the feel of the 60* with 115's better.
60*:
115grn Blazer Brass (BB) cycled and bolt would hold open (I had a couple of times that it didn't hold the bolt open).
Addition 115 grn Federal I only tried t for a few rounds and it didn't hold the bolt open but it could be a magazine or have been a little dirty?
130grn Syntech, bolt cycled but would not hold open.
150grn syntech, bolt would not cycle
70*:
130grn Syntech I noticed a little more recoil, bolt cycled and held open
150grn Syntech, bolt cycled and it held open but I can't remember if it was consistent.
As far as what felt good to me?
The 115grn BB felt really nice. Cycled fast and felt light (what I mean by light is that it wasn't a heavy'sh push)
The 130grn Syntech was pretty good, it shot well. I was happy with it but I don't like the bolt not holding open.
150grn Syntech felt a little sluggish when shooting it.
These are just my "feels" so not a really objective thing.
I just ordered the Eley Trial pack and will test that out. I ordered a case of Federal 115grn FMJ to try which shoot at 1180FPS (from a pistol) vs the BB 115grn which shoots at 1145fps (from a pistol). The 130grn Syntechs are listed at 1140 FPS from a PCC with a 16" barrel so I suspect a slower velocity from the JP5 being it is not a true 16" barrel with a pinned and welded muzzle break.
Thoughts?
I'll continue to post in the JP5 thread and update there as I go.
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On 11/29/2022 at 12:04 PM, mrvip27 said:
Thanks for the input. Keep us updated on the Eley.
Will do.
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What CClass said!
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So I played around a little yesterday.
60*:
115grn Blazer Brass cycled and bolt would hold open (I had a couple of times that it didn't hold the bolt open).
130grn Syntech, bolt cycled but would not hold open.
150grn syntech, bolt would not cycle
70*:
130grn Syntech I noticed a little more recoil, bolt cycled and held open
150grn Syntech, bolt cycled and it held open but I can't remember if it was consistent.
As far as what felt good to me?
The 115grn BB felt really nice. Cycled fast and felt light (what I mean by light is that it wasn't a heavy'sh push)
The 130grn Syntech was pretty good, it shot well. I was happy with it but I don't like the bolt not holding open.
150grn Syntech felt a little sluggish when shooting it.
These are just my "feels" so not a really objective thing.
I just ordered the Eley Trial pack and will test that out. I ordered a case of Federal 115grn FMJ to try which shoot at 1180FPS (from a pistol) vs the BB 115grn which shoots at 1145fps (from a pistol). The 130grn Syntechs are listed at 1140 FPS from a PCC with a 16" barrel so I suspect a slower velocity from the JP5 being it is not a true 16" barrel with a pinned and welded muzzle break.
Thoughts?
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17 hours ago, mrvip27 said:
yes sorry. the 80% only comes in an ar-15 spring. (if i looked correctly)
I'll have to experiment when I can get some time.
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On 9/26/2022 at 12:27 PM, mrvip27 said:
Interesting response from Max on his instagram.
he basically uses the 70* for everything and is tuning the recoil spring instead.
for 147g, he is using the lightest 80% spring
for 115g, he is using the strongest 110% ar-10 spring.
I wonder if the AR springs would work?
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9 minutes ago, aRjayboy said:
I was looking at the JP-5 components part of the website and i noticed in the roller replacement kit that they are offering different sizes:
* -4 (7.96mm)
* -2 (7.98mm)
* Standard (8.00mm)
* +2 (8.02mm)
* +4 (8.04mm)
is the sizes dependent on the power factor of your bullet just like in the lock pieces?
Great question! I would like to know myself.
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20 minutes ago, jbauman915 said:
Ha. I do miss the year round matches already. My season is over so atleast I can focus on orders with no distractions until Feb. I'm going to come to atleast 1 match down there next season. Hopefully see y'all there!
Yes, it'll be great to see you again! Bring some of your toys and bill it as an advertising expense on your taxes
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I used to shoot with Jason before he moved from the wonderful Fort Polk, LA location to the north. Great guy!
Now if he could be convinced to move back down and shoot with us again
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Played with the JP5 this weekend and ran 150grn Syntechs with the 80* which was nice and 115grn blazer Brass with the 80* and 60*.
The 115's with the 60* was very pleasent to shoot. I think I liked it better than the 150grn and the 80*.
I might want to try 130grn syntech in the 60* and try some 147's with the 70*. After I buy more ammo.
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@Boomstick303, the EXPS rocks! I shot it Friday and Sunday on my JP5. Very happy!
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12 hours ago, Boomstick303 said:
It would seem that yes that the thermal drift has been fixed. This loss of zero is not due to thermal drift. Something mechanical with the optic, but I have yet to see it.
Aaaahhhh, not thermal shift. Who knows what caused that? Rifle, bumping the optic? I was practicing with my GMR15 before a match and realized my 510C was off by about 4-5" and that could have been me bumping it putting it in the safe or something else. Weird stuff happens but I sure was happy that I discovered it practicing and not at the match (then there are loud angry voices
).
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1 hour ago, Boomstick303 said:
I have a bunch. Mostly EXPS3 and EXPS2 models. I would stick with the EXPS models because they come with an incorporated quick detach mount. The XPS model requires you purchase a mounting device for the optic. I get a deal on EoTechs, or I might have gone the Aimpoint T2 route for some of the optics I own due to the bomb proof nature of the Aimpoints. Some have indicated they have had zero shift issues with EoTechs. I have had none to date. Also with the EoTech when using a magnifier the dot/ring does not get magnified as much as a red dot does. Something else to consider for certain.
I run the EoTech EXPS models with their G33 3X magnifier, using the Unity FAST system. Something to not is the Unity FAST system will not work with the G43 or G45 magnifiers because the are too large in diameter. Only the G33 will work with the FAST mount. Pretty slick system and its an amazing setup for matches 300 yds. and in. If I go out past that I prefer an LPVO setup with a 45 degree offset red dot.
Thanks, I am probably going to try out an EXPS on my JP5. I thought about a T2 but I just don't know. I heard about "older" Eotechs having shift issues with extreme temperature changes but that has supposedly been fixed.
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On 6/29/2021 at 11:00 PM, Boomstick303 said:
I was using a Holosun 510c with the riser plate and liked that optic a lot. I used only the red dot reticle and not the circle/dot reticle because I felt the later was too busy. After attending a match in the rain I switched to an Eotech to prevent issues with the open emitter on the Holosun. Upon switching I knew I would have to get use to the circle/dot reticle which is the only option in the Eotech. What I found is I am noticeably faster with the Eotech. Especially on steel targets. Not sure why, but I have a feeling the eye intuitively tells the trigger finger to move once I have decent coverage of the circle over the plate. My miss far less steel now with the Eotech.
What Eotech model are you using? I have two Holosun 510C-GR and love them but don't want to deal with rain and open emitter issues.
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Crazy thing is I started with a Stribog and pretty quickly went to a JP GMR-15 and now have a JP5 on order. I plan to keep the GMR still as a back up as it is a really nice PCC to shoot. My son prefers the Stribog A3 because of the size but he is just having fun shooting.
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#3 Lower or a little higher, keeping my head slightly more upright helps dealing with spinal injuries. Plus having it lower impacts my ability to get a good fit for my earmuffs when shooting.
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On 8/2/2022 at 12:59 PM, Blackstone45 said:
What kind of optics will you guys be putting on your JP-5?
I run a H510C-GR on my GMR and plan to use one on my JP5 when I get it. I've been happy with that optic so far.
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Sounds like they have a pretty solid QC process. Can't wait to get mine.
JP-5 reviews/input
in Pistol Caliber Carbine
Posted
I'm also running an Eotech ( @Boomstick303) made the recommendation and I love it. Very happy with that choice especially after the last match that involved a lot of rain (and me tripping on an upright for a barricade in the mud).