Benjamin Trail NP will not zero after one month



Author Topic: Benjamin Trail NP will not zero after one month  (Read 5858 times)

Offline PyroMonkey

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Re: Benjamin Trail NP will not zero after one month
« Reply #20 on: August 17, 2011, 11:48:07 AM »
I know it's unrelated but when you had the shroud off was the gun louder?  I know suppressors don't do much on spring piston guns but did you notice any difference?
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2014 Hunt Chart:

Rifle               .22 Discovery       .177 NPSS              .177 Powerline 901
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Offline EJB

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Re: Benjamin Trail NP will not zero after one month
« Reply #21 on: August 17, 2011, 12:42:30 PM »
Can the barrel be straightened if this happens?  It would be nice to know if it happens.
  • Iowa
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Rws 350 Mag,  (Greta) .177
Benjamin Trail NP XL 1500,  (Angle)
Browning 800 Mag,  (Achmed) .177
QB78 .177
IZH 60 .177
Daisy Powerline 889 .177
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ivanpros

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Re: Benjamin Trail NP will not zero after one month
« Reply #22 on: August 18, 2011, 12:11:46 AM »
I could not tell much difference with the shroud off. It was a little longer burst, but not louder. It has been 3 days and it works fine since I bent it.

Offline BIMsparky

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Re: Benjamin Trail NP will not zero after one month
« Reply #23 on: August 18, 2011, 07:40:20 PM »
Ivanpros,

I just joined! Glad you found the problem and were able to bend it back to straight... What pellets are you using and what is your NP's caliber? I've had the .177 Trail NP for about 1 month- I like it alot, but it can be hold sensitive, and only after about 600 rds did it finally start to group for me, which could have just been me learning to shoot the thing. Those are good groups considering the rifle (I think anyway)! I have finally gotten several 3 shot groups with touching holes, but if I try for a 5 shot group, I am usually dissapointed...

Have the straightshooters .177 sampler pack arriving today, can't wait to see how different pellets do...

Happy shooting-
  • San Diego, CA
Crosman 1377 modded to .22 Carbine- ported valve.
Benjamin Trail NP .177 lightly tuned
Benjamin Marauder .22 stock (new!)

Marlin 981TS .22
Colt M1911A1 (US Army)
Mossberg 590SP 12ga
Remmington 870 Express Magnum 20ga
Ithaca Model 37 Featherlight 16ga
Ferlach 16ga SxS
Mosin Nagant 91/30
Mosin Nagant M44 (bubba'd)
Stevens 200 .308
Ruger Security Six 4" .357/.38 spcl
Marlin Papoose .22

ivanpros

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Re: Benjamin Trail NP will not zero after one month
« Reply #24 on: August 18, 2011, 10:19:36 PM »
BIMSparky,

Glad to see you joined. The people on these forums are very helpful on here and there is much to be learned by everyone. I have the .22 and I have noticed it is not as hold sensitive as any of my Gamo springers. I am still experimenting with different brands myself. Here is my best to worst so far.

Crosman Premier Pointed (tightest shot groups, but I am hoping the brown box domes will be even better)
Crosman Premier Hollow Point (decent groups)
Gamo Hunter (large skirts stick out and are not flush when loaded; large groups)
Predator Polymags (very nice fit, but very large groups)

tested at 10 yards, 15 yards, 25 yards. When I get a chance I will post some numbers and charts.

Welcome aboard.

Offline BIMsparky

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Re: Benjamin Trail NP will not zero after one month
« Reply #25 on: August 19, 2011, 03:31:23 AM »
Thanks Ivanpros!

Wow, I'm glad I didn't start off with a Gamo then- I was just about pullin my hair out for a while. Thanks for the info on those different pellets- I will have to try some of those CPP's to see if she likes them or not.

I got my sampler and shot groups with about 8 different pellets- I'll post some pics soon, but the difference blew me away! I had one group with HN Baracuda Powers that was one elongated hole at 20 yds- I am very happy with that after the results I had been getting.

I am looking forward to learning from all you guys, this seems like a great group of alot of experienced, friendly and helpful people!

Cheers-

  • San Diego, CA
Crosman 1377 modded to .22 Carbine- ported valve.
Benjamin Trail NP .177 lightly tuned
Benjamin Marauder .22 stock (new!)

Marlin 981TS .22
Colt M1911A1 (US Army)
Mossberg 590SP 12ga
Remmington 870 Express Magnum 20ga
Ithaca Model 37 Featherlight 16ga
Ferlach 16ga SxS
Mosin Nagant 91/30
Mosin Nagant M44 (bubba'd)
Stevens 200 .308
Ruger Security Six 4" .357/.38 spcl
Marlin Papoose .22

Offline BIMsparky

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Re: Benjamin Trail NP will not zero after one month
« Reply #26 on: August 19, 2011, 03:33:08 AM »
Hey by the way, how do you like your GRT-III? I still have the stock trigger and am wondering if you notice an improvement in accuracy...
  • San Diego, CA
Crosman 1377 modded to .22 Carbine- ported valve.
Benjamin Trail NP .177 lightly tuned
Benjamin Marauder .22 stock (new!)

Marlin 981TS .22
Colt M1911A1 (US Army)
Mossberg 590SP 12ga
Remmington 870 Express Magnum 20ga
Ithaca Model 37 Featherlight 16ga
Ferlach 16ga SxS
Mosin Nagant 91/30
Mosin Nagant M44 (bubba'd)
Stevens 200 .308
Ruger Security Six 4" .357/.38 spcl
Marlin Papoose .22

ivanpros

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Re: Benjamin Trail NP will not zero after one month
« Reply #27 on: August 19, 2011, 11:16:57 AM »
Yes, huge difference. That long creeping trigger was reduced to a nice hair trigger. Over-adjusting the screw I noticed it will not cock properly; need to make fine adjustments for final preference.

Offline Deane

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Re: Benjamin Trail NP will not zero after one month
« Reply #28 on: August 19, 2011, 11:46:18 AM »
After firing about 1,000 through my Gamo .177 Whisper and about 400 rounds through my Benji .22 Titan, the triggers worked in quite nicely. Of course that's with the understanding that most of my experience is with military and they are so stiff you could hang from them. I'd probably kill myself with a hair trigger ;D That said, I do have a GRT IV to install on my Whisper and will get one for my Titan.
« Last Edit: August 19, 2011, 11:50:15 AM by Deane »
First born:
Gamo Whisper .177 CenterPoint 4-16X40 AO Illuminated mil-dot reticle

Later births
Benjamin Titan .22 Nitro Piston CenterPoint 4X32 scope
Crosman 1377c (Black)
Benjamin Discovery .22 w/pump and new model CenterPoint 4-16X40AO Illuminated mil-dot reticle
Crosman 2240

Offline BIMsparky

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Re: Benjamin Trail NP will not zero after one month
« Reply #29 on: August 19, 2011, 12:26:36 PM »
Great- I definitely need to get one of those- I think it will help with the hold too...
  • San Diego, CA
Crosman 1377 modded to .22 Carbine- ported valve.
Benjamin Trail NP .177 lightly tuned
Benjamin Marauder .22 stock (new!)

Marlin 981TS .22
Colt M1911A1 (US Army)
Mossberg 590SP 12ga
Remmington 870 Express Magnum 20ga
Ithaca Model 37 Featherlight 16ga
Ferlach 16ga SxS
Mosin Nagant 91/30
Mosin Nagant M44 (bubba'd)
Stevens 200 .308
Ruger Security Six 4" .357/.38 spcl
Marlin Papoose .22

Offline john

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Re: Benjamin Trail NP will not zero after one month
« Reply #30 on: August 19, 2011, 11:16:24 PM »
Closest mine's ever gotten to zero today...10 pellets in one ragged 3/4" hole...but can he do it again...?...and I was aiming at that intersection, not the center dot  ;D
« Last Edit: August 19, 2011, 11:18:10 PM by john »
Benj Trail NP .22 HW, modified shroud, semi-floated Summit stock, home-tuned including deburing, honing, new Crosman piston seal, JM piston buttons, muzzle crowned, trigger group shimmed/debured, padded cocking lever, w/ CP3-9x40AO (3500CPHPs, 500CPUMs, 175CP pointed hunting, 4000RWS superdomes, 250 JSBExpress, 1000 JSBExacts, 250 H&N FTTs, for a total of almost 9K shots so far)
Falcon Prairie Sporter Carbine .22 Bull Barrel Multi Shot

Offline Deane

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Re: Benjamin Trail NP will not zero after one month
« Reply #31 on: August 20, 2011, 11:30:29 AM »
How many rounds through it since you had it tuned? With about 250 rounds through it, my .22 Benji Titan (same as the Trail without the extras) gave me a three-string, 10-shot per string average of 718.4 and standard deviations of 3.74, 5.2, and 3.16. I'm using 14.3 gn CPHPs for my break-in.

Sorry, I didn't see your signature. My bad.
First born:
Gamo Whisper .177 CenterPoint 4-16X40 AO Illuminated mil-dot reticle

Later births
Benjamin Titan .22 Nitro Piston CenterPoint 4X32 scope
Crosman 1377c (Black)
Benjamin Discovery .22 w/pump and new model CenterPoint 4-16X40AO Illuminated mil-dot reticle
Crosman 2240

Offline john

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Re: Benjamin Trail NP will not zero after one month
« Reply #32 on: August 20, 2011, 02:17:12 PM »
How many rounds through it since you had it tuned?
Actually the vast majority of those rounds in my signature were before tuning. Only about 300rounds thru it since. Never had group that tight before. I really did not expect tuning to improve accuracy, velocity yes…accuracy?, pleasant surprise IF it lasts.

Edit: fyi, no, it didn't last.
« Last Edit: April 24, 2013, 01:32:03 AM by john »
Benj Trail NP .22 HW, modified shroud, semi-floated Summit stock, home-tuned including deburing, honing, new Crosman piston seal, JM piston buttons, muzzle crowned, trigger group shimmed/debured, padded cocking lever, w/ CP3-9x40AO (3500CPHPs, 500CPUMs, 175CP pointed hunting, 4000RWS superdomes, 250 JSBExpress, 1000 JSBExacts, 250 H&N FTTs, for a total of almost 9K shots so far)
Falcon Prairie Sporter Carbine .22 Bull Barrel Multi Shot

Offline The Shootist

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Re: Benjamin Trail NP will not zero after one month
« Reply #33 on: April 23, 2013, 11:33:05 PM »
Good information! I have been reading and lurking this forum for several months I did a search tonight and came across this thread. I recently purchased a brand new Trail NP from Pyramid Air that is shooting 12" high and 5" to the right and that was right out of the box. I ran out of adjustment on Two Scopes I have tried and even changed rings and couldn't get it on the mark. Dooshed the barrel cleaned real good and have shot over 250 rounds through the rifle. Best I could get it in was 6" high and 2" to the right. After reading this thread I removed the barrel shroud and put a straight edge on the barrel and it was 3/8" bent high and 1/8" to the right. I straightened the barrel and got it within .0005 according to my trusty feeler gauges.  ;)  I am looking fwd to testing it out tomorrow after work. Thanks &  Great Forum.
~Duke
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Offline Tater

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Re: Benjamin Trail NP will not zero after one month
« Reply #34 on: April 24, 2013, 12:47:18 AM »
Good information! I have been reading and lurking this forum for several months I did a search tonight and came across this thread. I recently purchased a brand new Trail NP from Pyramid Air that is shooting 12" high and 5" to the right and that was right out of the box. I ran out of adjustment on Two Scopes I have tried and even changed rings and couldn't get it on the mark. Dooshed the barrel cleaned real good and have shot over 250 rounds through the rifle. Best I could get it in was 6" high and 2" to the right. After reading this thread I removed the barrel shroud and put a straight edge on the barrel and it was 3/8" bent high and 1/8" to the right. I straightened the barrel and got it within .0005 according to my trusty feeler gauges.  ;)  I am looking fwd to testing it out tomorrow after work. Thanks &  Great Forum.
~Duke


Good luck. I hope it's all "straightened out" now.   ;)
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Offline john

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Re: Benjamin Trail NP will not zero after one month
« Reply #35 on: April 24, 2013, 01:34:18 AM »
@The Shootist

Welcome to GTA and thanks for posting. Us Trail NP owners have to stick together! 8) I also have straightened two Trail NP barrel/breechblock assemblies enough to get them to where the scope could be dialed in and still remain near the mechanical centers of both windage and elevation. Didn't shrink the groups though. :'(
Please keep us informed...anyone who discovers & shares how to make this gun behave could make alot of people happy.
Benj Trail NP .22 HW, modified shroud, semi-floated Summit stock, home-tuned including deburing, honing, new Crosman piston seal, JM piston buttons, muzzle crowned, trigger group shimmed/debured, padded cocking lever, w/ CP3-9x40AO (3500CPHPs, 500CPUMs, 175CP pointed hunting, 4000RWS superdomes, 250 JSBExpress, 1000 JSBExacts, 250 H&N FTTs, for a total of almost 9K shots so far)
Falcon Prairie Sporter Carbine .22 Bull Barrel Multi Shot

Offline GutPile

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Re: Benjamin Trail NP will not zero after one month
« Reply #36 on: April 24, 2013, 02:41:50 AM »
I've had the Benji Trail NP for about a week now.  I started with that same ragged 10-shot 10-yard 3/4" hole but I has gotten progressively worse (about 500 shots), and I'm lucky to get a 3" group now.  Talk about  >:(    I've made sure all my screws were tightened, scope was solid, etc, could not figure it out...

I've decided I am going to send it back to the hole it came from and order a Flying Dragon.  It's too bad, I was really excited about this rifle  :'(
  • Provo, UT

Offline john

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Re: Benjamin Trail NP will not zero after one month
« Reply #37 on: April 24, 2013, 09:34:55 PM »
@GutPile
Which Flying Dragon do you like?
Benj Trail NP .22 HW, modified shroud, semi-floated Summit stock, home-tuned including deburing, honing, new Crosman piston seal, JM piston buttons, muzzle crowned, trigger group shimmed/debured, padded cocking lever, w/ CP3-9x40AO (3500CPHPs, 500CPUMs, 175CP pointed hunting, 4000RWS superdomes, 250 JSBExpress, 1000 JSBExacts, 250 H&N FTTs, for a total of almost 9K shots so far)
Falcon Prairie Sporter Carbine .22 Bull Barrel Multi Shot

Offline GutPile

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Re: Benjamin Trail NP will not zero after one month
« Reply #38 on: April 28, 2013, 02:31:11 AM »
@GutPile
Which Flying Dragon do you like?

I think the XS25 with the full tune is a pretty safe bet, but I really have my eye on the XS46U in .22 with the gas ram configuration (and full tune).  The only problem, it's out of stock until who knows when...  >:(

I'm waiting for Mike to return from some gun convention he's at this week so I can get his opinion on these models.
  • Provo, UT

How do you word it... "Air Guns" or "AirGuns"?