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)

you are viewing a single comment's thread
view the rest of the comments
[–] 2 points 1 year ago* (last edited 1 year ago) (2 children)

A couple of more thoughts:

  • It could be the scope: Springers are notorious for wrecking scopes due to the back and forth kickback, and the in-box scopes are notoriously cheaply made. Google for "springer rated scopes" There are plenty of models that aren't super-expensive, but allegedly durable.
  • You mentioned that you're supporting the front with a tripod. Not all tripods and gun mounts are equal. Andy's Airguns just put out a video on that Compare the spreads on a lightweight tripod with a simple rubber V mount to an expensive heavy Epic tripod with a picatinny mount. He normally demonstrates shooting accuracy from a stand on a bench. It's widely believed that firing airguns from a bench resting on a sandbag or a lead sled is the best way to judge accuracy.
  • The A30 is a clone of the Chinese B18 .177 platform which is used in multiple models from Crosman, Benjamin, et al, and parts are mostly interchangeable. The B19 platform is the .22 version, and also shares many parts.
  • source
  • hideshow 2 child comments
  • [–] [S] 2 points 1 year ago* (last edited 1 year ago) (1 child)

    my tripod mounted support is basically just a flat pad with a 4mm thick piece of yoga mat on it for padding, for vertical support and to prevent lateral sliding while aiming. I don't believe it would restrict recoil much, as it is basically an artillery hold

    I did remount the scope and fix the shimming to be more even, which has maybe made a tiny difference? going to add an image to that comment chain with myself. the scope is a stroeger one that is springer rated, but yeah I don't know the reviews on it.

    really, I need to get the barrel cleaned, I think. I had one shot that looked (from the mark it left) like the pellet went sideways through the paper, but it might just be the shot up cardboard behind the paper caused it to tear oddly. problem is that it seems like no store near me sells .177 cleaning kits, just real gun stuff

    this is the stock rest I made:

    the stock is not trapped horizontally, the walls have clearance

  • source
  • parent
  • hideshow 1 child comment
  • [–] 2 points 1 year ago* (last edited 1 year ago)

    Ah yes, I think the only .177 cleaning rods are the cheap one from Gamo, and the $30 unwieldy single piece rod by Dewey.

    Alternatively, I've heard good things about the patchworm Don't forget to select "rifle length" if you go this route.

    Some people just use a length of fishing line with a small loop tied at the end.

    To get a flexible cleaning line past the baffles in the moderator, use a drinking straw.

    Although I really do like having a metal rod around for when I inevitably jam pellets inside the breech by double loading them.

  • source
  • parent