I bought a Stoeger A30 .177 495fps from Canadian Tire because it seemed decent for the price and had a 3-9x40 scope. I've run about 150 pellets through it now, and I'm just confused by the spread.

I know that everybody says there's a break in period during which it will be inconsistent, but I get the feeling that what I am seeing is worse than expected. Further, consistency doesn't seem to be improving. The image shows four groupings:

  • target 23, 10, 1 (in order of firing, first two last night and 1 this morning): Stoeger
  • target 30: Marksman

These are ~1.5" squares, and I'm aiming for the center of each target. I am not a great shooter, I wouldn't even say good - I just want to get rid of a rat in my backyard, and I haven't shot in years. But I used my 20yo Marksman 1745 with a floppy barrel and a 4x20 scope I can barely see through, and I can get more accurate and better groupings.

These shots were taken at 11 yards. I'm using a camera tripod with a custom block on top to support the barrel of the Stoeger and the stock of the Marksman (as laying the barrel on it results in deflecting the barrel up about 8 MOA lol), and using a loose hold at the butt of the rifle. I'm a fidgety fucker that can't stay still, but I'd say that I'm still enough at release with the Stoeger, considering the trigger is far smoother and lighter than the Marksman and I'm holding it farther from the supporting pivot point (both farther down the rifle and a longer rifle overall).

Another thing to note is that the scope that came with the Stoeger could not be mounted to it without shimming the rear mount up, as I immediately ran out of elevation adjustment. I used a couple layers of electrical tape, didn't over tighten it, and have retightened it twice since as it settles in. It's possible, but I don't think that the scope is moving shot to shot.

It's weird. I'll have two of three shots that are somewhat consistent (down and to the right, for example), and then the next shot will be twice as far the opposite way, and the following shot up and the right. It just seems like too great of a spread for only 11 yards, even this early in the break in period. The box was semi-open when I bought it, but the rifle itself seemed untouched, so I also have some concern that somebody returned it and the rifle itself has an issue. Although I don't know what that would be, because it looks mint, and oh boy is the pivot joint for the barrel ever tighter than the Marksman. I can move the Marksman barrel in all directions when closed, but the Stoeger is solid. Better be, considering it's like twice the weight for the same claimed fps

final edit (I think) because it's going to be too cold to continue soon:

  • this trigger is not a 'pull gently until it goes off" despite being a two stage smooth trigger — grip-and-pull alone decreases the spread by half for me

  • the spread on the non-defective model tightened up by 200 pellets

  • the variable scope may be slightly inaccurate at max zoom — backing off to half power results in lower spread (more testing needed to confirm)

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[–] [S] 2 points 11 months ago

two five shot groups for each rifle, X20 on the left and A30 on the right. same 11 yards as always.

X20 shots are on rails, even makes me feel like a decent shooter. A30 has twang still, and I think some parallax issues with the adjustable scope and the user looking through it. It's been tough to find the proper focal setting, but I'm starting to figure out the setback I need to use to avoid parallax issues (back up to juuust where scope shadow starts to show on the edges).

Still, THIS is the performance I expected out of a new purchase. Much better than before. I don't think I included it in updates, but I did end up swapping scopes around to eliminate variables, and determined that yes the adjustable results in less consistent shots, but it didn't account for all of it.

Now to sort out the crappy scope mount on the X20 (it puts the scope noticeably to the right of the center line, so zeroing over different distances will have significant lateral change), and probably print a new top hat for the A30 to guide that spring better, lighten the piston, and reduce the twang of metal on metal. Then to work on the triggers with the bushing mod, but that's secondary, I'm already very pleased with the massive improvement on the X20.

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