Benjamin Trail NP XL 1500 Sighting in help needed!

Need some help. Got it as a present. 1st one was dead on shot but broke in a few months. Benjamin replaced it with another. The 2nd had bad vibrations and replaced it with a 3rd. The problem is that I can't get this thing to scope in. Will shoot a bullseye, then next few shots, they are all over the place. Any advice on how to get this thing to be scoped in? I like the design, but I can't get this dialed in. Plus, every time I shoot, the scope goes out of focus. Any advice would be GREATLY appreciated!
 
How far off are the fliers/how big are the groups? That isn't a particularly easy gun to shoot well. Its going to be pretty hold sensitive. I assume you're using some form of artillery hold?
I will get 1 shot on bull. Then do a few follow-up ones, but they are all over the place. Everything is tight, but it seems no consistency. The 1st one I got had good precision, but broke. Using bags on the bench. I have the same setup on my other rifles and sight in same way for all. I like the weight & design, I just can't get this thing to be consistent and I am at a loss.
 
I will get 1 shot on bull. Then do a few follow-up ones, but they are all over the place. Everything is tight, but it seems no consistency. The 1st one I got had good precision, but broke. Using bags on the bench. I have the same setup on my other rifles and sight in same way for all. I like the weight & design, I just can't get this thing to be consistent and I am at a loss.
You really aren't giving much to go on here thats why I'm asking a million questions. There is a lot of things that it could be. Unfortunately, Benjamin isn't exactly known for making a very quality product these days. I assume you realize that after sending two back in a matter of months.

Is there any sort of pattern to these missed shots? Are the stringing vertically or horizontally or do they just seem to fly all over the place?

The first thing I would check is the stock screws Make sure they are snug. Loose stocks can cause big problems. Also, clean the barrel. Kroil or JB bore paste on a mop and then push some patches through until they come out clean.

The second thing I would check would be your barrel pivot. After you cock the gun, does the barrel become limp to the point where when you bring it back up almost to the point of latching (but not latching) and you let go, does it stay put, drop down slowly, or just drop like a ton of bricks?
 
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You really aren't giving much to go on here thats why I'm asking a milling questions. There is a lot of things that it could be. Unfortunately, Benjamin isn't exactly known for making a very quality product these days. I assume you realize that after sending two back in a matter of months.

Is there any sort of pattern to these missed shots? Are the stringing vertically or horizontally or do they just seem to fly all over the place?

The first thing I would check is the stock screws Make sure they are snug. Loose stocks can cause big problems. Also, clean the barrel. Kroil or JB bore paste on a mop and then push some patches through until they come out clean.

The second thing I would check would be your barrel pivot. After you cock the gun, does the barrel become limp to the point where when you bring it back up almost to the point of latching (but not latching) and you let go, does it stay put, drop down slowly, or just drop like a ton of
 
Thanks for helping. All screws torqued with Loktite. Barrel cleaned before shooting. Shots are all over the place. Interesting you mention barrel pivot. Once cocked, and when bringing back up, if let go, swings like a pendulum.
Thats way too loose. Tighten it to the point where when you let go it just barely doesn't drop under its own weight. I'm not 100% sure how to do that on that rifle so you'll have to do a little Googling there. I assume it's just a bolt and nut of some sorts but I really don't know unfortunately
 
For perspective, a 3" flier at 25yds would be caused by 0.2° of change in angle from where the barrel was previously pointing. The fact that some of these break barrels manage MOA groups at any range is just astounding when you think about it. If the barrel becomes a pendulum like you stated, it is too loose.
I have the Benji Trail NP2, the barrel wiggles just a bit as well. Beeman R9 is solid when it's cracked open. I still can't shoot either very well but the R9 is a bit better and has a far superior trigger to the Benji.
 
I have the Benji Trail NP2, the barrel wiggles just a bit as well. Beeman R9 is solid when it's cracked open. I still can't shoot either very well but the R9 is a bit better and has a far superior trigger to the Benji.
Yeah its hard to compare the two. Any chance you have some pictures of the barrel pivot? I'm curious to see if lockup is even adjustable. I know most Gamos can't be but my Benjamin know how is severely lacking