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PostPosted: Sun May 12, 2013 6:04 pm 
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Joined: Sun Oct 07, 2007 7:58 pm
Posts: 7
Location: Muskoka Ontario
Just bought a trail NP .22 and looking if there are any upgrades or mods to improve the performance? The box claims up to 800fps and I would like to get that consistently.

So far is it a nice little air rifle though I have only put about ten pellets through it so far.


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PostPosted: Sun May 12, 2013 7:56 pm 
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Joined: Sat Sep 25, 2010 7:49 pm
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Location: Southern Ontario
Beware the "up to" part of the FPS rating. Ratings are generally optimistic, and you never really know what pellets were used for the testing.
Shoot a couple tins of pellets though it before you decide on mods. Once everything is settled in, you might find it's more consistant. The nitro piston doesn't require it like a spring, but that new barrel rifling and seals might...
I always clean the barrel and check the crown on any new/used airgun I get. Basic, but important for accuracy and consistency.

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PostPosted: Mon May 13, 2013 2:00 pm 
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Tops about 720 f/s with 14 g JSB pellet...chrony checked and rechecked.

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PostPosted: Wed May 15, 2013 7:42 am 
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Joined: Sun Oct 07, 2007 7:58 pm
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Location: Muskoka Ontario
That is why I am wondering if there is any I can do to improve the performance.


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PostPosted: Wed May 15, 2013 7:42 am 
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Joined: Sun Oct 07, 2007 7:58 pm
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Location: Muskoka Ontario
That is why I am wondering if there is any I can do to improve the performance.


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PostPosted: Sun Jul 21, 2013 12:18 pm 
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Joined: Sun Jun 09, 2013 4:49 pm
Posts: 106
Location: Belleville, Ontario.
Theres a few Mods that I recommend for pretty much most Crosman/Benjamin models. I have purchased a few Venom Dusk's and Benjamin Trail NP's for friends because they enjoy shooting mine.

First thing I do when I purchase the rifle is rebuild it. The factory tends to over lube these guns, so I completely disassemble everything and clean with Isopropyl alcohol, then again with soap an water. I don't clean the barrel because I buy brand new. In your case since you've fired it I would suggest a barrel cleaning.

Now that the gun is completely cleaned and disassembled you can check the Piston Head to see if there is a bleeder hole in the top. If not your fine. If there is a bleeder hole, you simply fill it. I've seen some peoples tutorials online on how they fill these holes... Ridiculous IMO. I purchased a Tap and Die kit. Tapped the bleeder hole in the center for a set screw. Cut the set screw to length and screwed it in the hole with some lock-tite. This is also a good time to check your piston seal for any damage. The factory tends to mess them up a bit as well. Get a new one if needed.

My next step is checking the inside of the gun for any burring or things that could rub/scrape. I use 500 grit water proof sand paper to remove any obstructions I don't like. While the sand paper is out check the bottom of the cocking lever where it catches the Piston. I clean it up nice so its smooth, they have a habit of rubbing on the side of the actual gas spring and cause scraping.

The trigger mechanism in theses guns have 2 useless pieces IMO. The first is that spring that rests on the trigger adjustment screw located in the trigger itself. All it does is add about 75lbs of trigger pull to the gun. Once its gone, trigger feels like a normal trigger. The second piece I remove is the trigger adjustment screw/screw housing just cause there is never case where you want more pull in these guns.

Ok so now on to the actual trigger itself. There's 2 options but either of them is a must when it comes to these guns. You can purchase a trigger from http://charliedatuna.com/ or buy a split washer for $0.10. The triggers from http://charliedatuna.com/ are amazing looking, with the trade off being you are gonna pay around $30.00 give or take. The split washer does the same thing, it close the gap between the back of the trigger and the sear so that your in contact with the sear from start to end of the trigger pull.

The last thing I do to these guns is install a swivel stud about 2 inches down on the underside of the forestock. This allows for you to put a bipod on the gun.

Hope thats a little helpful, theres tutorials online for just about everything that I mentioned.

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PostPosted: Sun Jul 21, 2013 5:59 pm 
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Joined: Sat Sep 25, 2010 7:49 pm
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Location: Southern Ontario
Unfortunately, according to the site, Charlie's no longer shipping outside the US of A, including Canada.
Too bad-would've liked to have gotten a couple more Tuna Triggers...

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PostPosted: Sun Jul 21, 2013 6:12 pm 
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Joined: Sat Apr 16, 2011 5:58 am
Posts: 495
Location: Eastern Ontario
http://scopesandammo.com/storefront/pro ... more-p-242

Made my Benji Trail sooooo much nicer to shoot!

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PostPosted: Sun Jul 21, 2013 7:36 pm 
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Joined: Wed Jul 01, 2009 3:23 pm
Posts: 3070
Location: Northern Ontario
sholo wrote:
http://scopesandammo.com/storefront/product_info.php/gtx-gen-ii-trigger-for-b18crosmangamo-and-more-p-242

Made my Benji Trail sooooo much nicer to shoot!

Better than the fish trigger anyway.

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