Fire NP rifle scope issues? Trying iron sights.



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Offline mentolio

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Re: Crosman fire NP rifle scope issues?
« Reply #20 on: December 16, 2018, 08:26:15 PM »
Crosman Fire is the same action as any first gen Nitro Piston gun (as far as I can tell). Make sure your mounting screws are tight...not snug, TIGHT. I mean the screws that hold the action in the stock, two up front, one in the rear of the trigger guard. My first NP gun killed 5 or 6 scopes (and not all of them the bundled junk!). Didn't stop until I rebuilt the gun and installed it in a composite stock (which you already have). Loose screws, broken bedding, loose lug brace...any of these things can cause scope destruction. Sadly so can needing a new piston seal. I'm with the others who suggest switching to lead. And if it's working as it should, the heavier the better. I shoot A LOT, and haven't yet poisoned the garden/lawn/etc.
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Re: Crosman fire NP rifle scope issues?
« Reply #21 on: December 16, 2018, 10:00:55 PM »
The lead issue is with my mother. She moved her garden so its not much of an issue anymore, but my 1377 still loves the lead free blue arrows over anything else.

The mounting screws are solid on this Fire np. "broken bedding, loose lug brace", forgive my ignorance but i have no clue what you're talking about. The fire is relatively new, almost 2 years when i bought it in the box but only put maybe 600~ pellets through it.
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Offline mentolio

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Re: Crosman fire NP rifle scope issues?
« Reply #22 on: December 16, 2018, 10:46:30 PM »
Different rifle, but same (enough) action. No epd for the Fire.

https://www.crosman.com/fileuploader/download/download/?d=0&file=custom%2Fupload%2FCQH17RDN-SX_EVP.pdf

Piece 31 is the Stock lug brace, which should fit fairly tightly into a slot ("bedding") in the rear of the stock.

Piece 29 is the stock link pin, which threads into the bottom of the airtube/action, helps to secure the trigger group, should fit snugly into the stock lug brace, and secures the whole mess in the rear by having the rear mounting screw thread into it. If piece 31 fits loose in the stock, and or piece 29 doesn't fit snugly into piece 31, the action will move more than it should (when fired) and kill your scopes. Better, more expensive scopes can and will likely last longer, but will eventually die on a loose action.

Now, assuming this isn't the problem I suggest trying this: first, invest n a better scope. UTG/Leapers, Hammers, Barska and the like all make good airgun scopes that can handle the dual recoil pounding one of these NPs can dish out. The lower end (included/bundled) scopes die quickly on anything but the weakest of guns. Next mount your scope where you want it, make the mounts tight, then draw a line across the airtube in front of the front scope mount, and behind the rear scope mount. Start shooting and watch the marks every few shots. This'll tell you if your scope is "walking" (mounts moving forward or reverse). If the scope walks invest in a better one piece mount with a scope stop screw (screw that threads down through the scope mount and into one of the holes in the top of your airtube). Umarex/Diana makes a nice one piece mount with 20 degrees of "droop compensation" built in. Best of luck.
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Offline mac

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Re: Crosman fire NP rifle scope issues?
« Reply #23 on: December 16, 2018, 11:14:28 PM »
I love this site and the people on it sharing the knowledge. As one of my teachers use to say “learning has occurred” lol. Thanks Jeff! I didn’t, know or think about the fit of the lug brace and link pin. I,m going to have to take the Optimus apart for a look because I think I remember it being a tad loose when I tuned it.
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Re: Crosman fire NP rifle scope issues?
« Reply #24 on: December 17, 2018, 02:30:34 AM »
One of the scopes i used was barska. The mounts stay in place, its somehow just the scopes ability to handle recoil thats the problem. The screw for the scope mount(s) i line directly above the "o" in "crosman" etched on the body.
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Offline ShakySarge

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Re: Crosman fire NP rifle scope issues?
« Reply #25 on: December 17, 2018, 08:22:35 AM »
Get a one piece mount before mounting a new scope. Take rubbing alcohol to the rail and clean thoroughly and allow it to dry before mounting the 1 piece. I used to have spring guns destroy scopes on a regular basis. Once I switched to the 1 piece mount I never had any issues even with the cheap centerpoint scopes.
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Re: Crosman fire NP rifle scope issues?
« Reply #26 on: December 24, 2018, 05:49:24 PM »
And whats the science behind it?

Changing my red laser mount to weaver and using a weaver adapter for the gun, it hasnt had any issues yet. Im curious what actualy happens when the scope has a "spacer" between it and the gun. Does it eat alot of recoil?

I never had issues with the scopes moving, just adjustment knobs turning themselfs after shot.
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Re: Crosman fire NP rifle scope issues?
« Reply #27 on: December 24, 2018, 11:58:06 PM »
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Re: Crosman fire NP rifle scope issues?
« Reply #28 on: December 26, 2018, 12:00:06 AM »
Looking into iron sights to try out on this fire. Came across Leapers carry handle/rear sight, a cheap knock off, but im still on a hunt for a front sight to complete it.
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Re: Crosman fire NP rifle scope issues?
« Reply #29 on: January 01, 2019, 12:02:54 AM »
Arived today. Huge pain to get the handle on with the adapters i have but its solid. Waiting on the barrel mount to put the front sight on.

Probably asked this in another thread somewhere, it being a gas piston instead of spring, it can stay cocked "indefinitely" because of there is no compression/wear. Is that true?
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Crosman 1377 .177 custom valve
Crosman 2240 .22  14.6" barrel and HPA/hipac.
Umarex Trevox .177 that im getting rid of. PM if interested half msrp.

Thanks for all help yal, its appreciated, I love you

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Re: Crosman fire NP rifle scope issues?
« Reply #30 on: January 03, 2019, 12:54:31 AM »
Couldnt wait... i got antsy and ghettoed up a front sight from gopro attachments.... works well so far and its adjustable.








And while in the mood to tinker....




I was able to fix my gamo green laser!!! Figured it was broke, i couldnt break it anymore so i took pliers to it and ripped it apart. Guess what... 2 of the 3 wires on the board were snapped off. Reheated the solder and pushed the wire back on.

Take a guess which one is the gamo


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Crosman Fire NP .177
Crosman 1377 .177 custom valve
Crosman 2240 .22  14.6" barrel and HPA/hipac.
Umarex Trevox .177 that im getting rid of. PM if interested half msrp.

Thanks for all help yal, its appreciated, I love you

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Re: Fire NP rifle scope issues? Trying iron sights.
« Reply #31 on: January 16, 2019, 12:07:22 AM »
Thanks for all the information and help.

I achieved what i "expected/thought" the Fire should of ben. All attachments and mounts arrived, i have OPEN SIGHTS and now the option to add another optic or flashlight/laser.

Pictures soon.
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Crosman 1377 .177 custom valve
Crosman 2240 .22  14.6" barrel and HPA/hipac.
Umarex Trevox .177 that im getting rid of. PM if interested half msrp.

Thanks for all help yal, its appreciated, I love you

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Re: Fire NP rifle scope issues? Trying iron sights.
« Reply #32 on: January 16, 2019, 11:21:40 PM »
Adjustments turned our great for the open sights. Not sure of other members oppinions, but freehand im hitting within a 1 inch target at 70ft. Again, thanks for all the help guys.


Thanks for mentioning scope stop pins, cleaning with alcohol before mouting, and others.


You guys are great.
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Crosman 1377 .177 custom valve
Crosman 2240 .22  14.6" barrel and HPA/hipac.
Umarex Trevox .177 that im getting rid of. PM if interested half msrp.

Thanks for all help yal, its appreciated, I love you

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Offline nced

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Re: Fire NP rifle scope issues? Trying iron sights.
« Reply #33 on: January 17, 2019, 01:01:50 AM »
"i found over the years how bad a spring can get in short time depending on users"
Hummmmm.....I've found that spring life has a lot to do with the spring itself. With the Maccari springs (ARH) I got a couple years of service when I was living in West Virginia and shooting about 10,000 shots per year. After moving to North Carolina I tried a couple Vortex springs and found that both springs held up fine for about 2500 shots, then they sagged rather quickly. Matter of fact, the PG2 kit I bought lost 80fps velocity with 7.9 grain .177 cal pellets before shooting a full case of boxed Crosman Premiers (5000 pellets).

When living in WV I shot a lot more than I do now and I didn't treat my .177 R9 in any special way. I would take the gun to the "squirrel woods", take a couple shots to check the zero, then cock the gun and go hunting "normal style". If I didn't get a shot at least every half hour it was a very slow day and the gun was never cocked for more than an hour before shooting and my Maccari springs lasted for about two years.

Anywhoo......if you have good eyesight (my 71 year old eyes, not so much) then "irons" are more rugged than scopes on a piston gun. It's important to get a scope from a vendor with a good warranty because you'll probably need warranty work if your scope is clamped to a recoiling piston gun, especially a "rammer".  I've had good service from my 4-12x50 AO Hawke AirMax and my 5-15x50 Hawke Panorama, however not so good with my 4-12x50 AO Hawke Vantage. When I sent the Vantage to Hawke under warranty the scope was replaced, however the "Hawke tech guy" recommended that the Vantage be mounted to piston guns of 12fpe max and the Airmax/Panorama was recommended for piston guns over 12fpe. 

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Re: Fire NP rifle scope issues? Trying iron sights.
« Reply #34 on: February 16, 2019, 08:05:17 PM »
So my thermal showed up the otherday and ive ben debating wether or not to put that 700$ scope on in fear of it breaking like the other electronics and scope...

After seeing more videos i feel a bit more competent, but still have that back sence... videos include what looks to be an AR and a shotgun. If it can handle that recoil, it should survive this air rifle? I hope...
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Re: Fire NP rifle scope issues? Trying iron sights.
« Reply #35 on: February 16, 2019, 08:56:15 PM »
 I have heard that lower cost night vision and cameras do not fair well in break barrels. even though they may be rated for powder burners.
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Re: Fire NP rifle scope issues? Trying iron sights.
« Reply #36 on: February 16, 2019, 09:05:02 PM »
I guess another question would be if it makes a difference in recoil damage if the scope was mounted on the front end of the barrel instead of the regular mount ontop the piston?
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Re: Fire NP rifle scope issues? Trying iron sights.
« Reply #37 on: February 16, 2019, 09:22:30 PM »
I guess another question would be if it makes a difference in recoil damage if the scope was mounted on the front end of the barrel instead of the regular mount ontop the piston?

 The weight of the scope could be another issue in keeping it in place.  :-\
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Re: Fire NP rifle scope issues? Trying iron sights.
« Reply #38 on: February 16, 2019, 09:36:19 PM »
Its not that heavy really. Its on weaver mounts, and the front barrel mount is epoxied and tightened in place. Im just curious about the recoil being on the front barrel vs being on the normal rails.
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Crosman 1377 .177 custom valve
Crosman 2240 .22  14.6" barrel and HPA/hipac.
Umarex Trevox .177 that im getting rid of. PM if interested half msrp.

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