Pellet weight drastically affecting accuracy?

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dianap5

dianap5

Member
Nov 8, 2022
68
15
Wilmington ct usa
So I have a gen 2 gamo swarm 10x. Love the gun. Got a scope for it finally and ive noticed after zeroing it in many times that there is a distinct inch to 2 inch vertical discrepancy between my gamo 15.2g/16.2/21g Pellets and my Crossman 14.3g Pellets. If I sight in with the Crossmans than my gamo Pellets hit low. If I sight in with my gamo Pellets then the Crossman hits high. About the same amount high or low for both. My question is there any way to make them both zero at the same spot? Or is it just pellet preference of my gun? I don't like to be held down by only using one pellet and can be confusing to remmeber wich ammo I last used to zero in the rifle. Can somone please lend some advice to me to fix this? Or tell me if this is just the way it is? At 10 yards it's predictable that one hits exactly an inch or so difference than the other. But at longer distances it becomes less predictable and I want to be able to accurately shoot different types of ammo or atleast not be limited to just one type.
 
dianap5 said:
So I have a gen 2 gamo swarm 10x. Love the gun. Got a scope for it finally and ive noticed after zeroing it in many times that there is a distinct inch to 2 inch vertical discrepancy between my gamo 15.2g/16.2/21g Pellets and my Crossman 14.3g Pellets. If I sight in with the Crossmans than my gamo Pellets hit low. If I sight in with my gamo Pellets then the Crossman hits high. About the same amount high or low for both. My question is there any way to make them both zero at the same spot? Or is it just pellet preference of my gun? I don't like to be held down by only using one pellet and can be confusing to remmeber wich ammo I last used to zero in the rifle. Can somone please lend some advice to me to fix this? Or tell me if this is just the way it is? At 10 yards it's predictable that one hits exactly an inch or so difference than the other. But at longer distances it becomes less predictable and I want to be able to accurately shoot different types of ammo or atleast not be limited to just one type.
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Welcome to physics, you have a few options, as you increase your weight, increase your speed, or just remember your drop at a given distance. Pick the middle pellet then you can go either side BUT as you increase your distance the number will change...quickly. If your gun isn't adjustable, find the pellet it loves and stick to it. Save up your money and jump down the Rabbit Hole® with a PCP.
 
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I don’t have a gamo swarm but my first recommendation would be to find out what pellet for your application like hunting is most accurate pellet. Then zero your gun to that pellet. Then you can always take your next pellet you want to shoot and just take note of where the pellet falls. Unfortunately I don’t think you are going to be able to shoot multiple pellets just in your one gun like a springer. I could be wrong.
 
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Ok I see. My scope doesn't have marks just center cross. I've wanted a better scope for while but I've had a really hard time finding quality 1" scopes. And it has to be 1" because I use these scope rings that allow me to see my iron sights through them and I dont want to give that up. And haven't been able to find scope rings is any other size that allow me to still see the irons like I like it. Amy scope suggestions? If it had like interval marks im sure it'd be easier to remember the drop or gain.
 
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My My, compromise,do not do anything until you figure out what pellets your springer likes to shoot, You want your cake and eat to,LOL.
there should not be that much difference,you are saying up to 1"- 2" difference at how many yards.10 yards.....nay, that is too much...
STOP, Something else may be going on, your ring set is too high,if you are only shooting 10yard use your open sights, not your scope, and see if that helps your groups first, Take care of your shooting skill, your springs preference in pellets, then when that is done and you are satisfied, then use the scope and go from there. Only my opinion,and it is worth a piece of cake,:ROFLMAO:
 
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boscoebrea said:
My My, compromise,do not do anything until you figure out what pellets your springer likes to shoot, You want your cake and eat to,LOL.
there should not be that much difference,you are saying up to 1"- 2" difference at how many yards.10 yards.....nay, that is too much...
STOP, Something else may be going on, your ring set is too high,if you are only shooting 10yard use your open sights, not your scope, and see if that helps your groups first, Take care of your shooting skill, your springs preference in pellets, then when that is done and you are satisfied, then use the scope and go from there. Only my opinion,and it is worth a piece of cake,:ROFLMAO:
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The discrepancy in accuracy only happens when I switch pellet types. If I zero in on one type then it hits dead on every time. Yeah its only 30 feet I was also surprised that such a small difference in pellet makes an inch difference at such close range but thats just how it is... the inch difference remains about the same even when I go outside I had to aim below the target to hit where I wanted with the lighter weight Pellets after sighting in with the heavier gammo Pellets. I thought maybe something was wrong but there really isn't anything wrong its just different for different Pellets I'm not sure how to really fix this except stick to one or two pellet types that are predictable.

Btw it's gas piston break barrel but with the 10x mag. I love this gun. Makes break barrels fun again!
 
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I label my tins for the rifle they go with. Buy the pellet that shoots best in the rifle. Now sometimes your group may open/tighten when you go to the next (like) tin but that is normal. It's also interesting to try a knew pellet now and then. I have a shelf full of tins that didn't work out BUT Who knows ,you may get lucky and find a better /or just as good a pellet. Label the tins #1,#2,#3
 
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Got a great deal on a nitro piston rifle because of accuracy issues. After trigger work and barrel cleaning started search for preferred pellet. Took some time but found the weight and shape of the H&N Sniper Magnum did the trick. This journey is typical for springer/nitro piston users, since guns are not easily adjustable, pellet selection is the key. Find the pellet which produces smallest, most consistent groups, then stick with it. Unrealistic to expect a pellet, with a different shape or weight to hit the same bullseye as the preferred. WM
 
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dianap5 said:
Ok I see. My scope doesn't have marks just center cross. I've wanted a better scope for while but I've had a really hard time finding quality 1" scopes. And it has to be 1" because I use these scope rings that allow me to see my iron sights through them and I dont want to give that up. And haven't been able to find scope rings is any other size that allow me to still see the irons like I like it. Amy scope suggestions? If it had like interval marks im sure it'd be easier to remember the drop or gain.
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Here you go. Buy some good pellets while you are at it.

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Rifle Scopes | Pyramyd AIR

Order a new rifle scope from popular manufacturers like Aeon, CenterPoint, Hawke Sport Optics, Leapers, Mantis and more at Pyramyd AIR.
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dianap5 said:
Ok I see. My scope doesn't have marks just center cross. I've wanted a better scope for while but I've had a really hard time finding quality 1" scopes. And it has to be 1" because I use these scope rings that allow me to see my iron sights through them and I dont want to give that up. And haven't been able to find scope rings is any other size that allow me to still see the irons like I like it. Amy scope suggestions? If it had like interval marks im sure it'd be easier to remember the drop or gain.
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I have an Athlon Talos 6-24x50 sfp it has an 1" tube, hash marks for windage and elevation. The reticle is easy to see in low light conditions, and it ranges well. good eye relief. It comes with bikini Lence covers that I'm not a fan of. It also has turret covers so, you have to take them off to adjust for windage and elevation, non-locking turrets. Not a big deal to me, but to some it might be. the turrets are easy to turn and to hear the clicks. Magnification is good, I use it at 16x and have no problem seeing a 1" target @ 100yards. It doesn't come with a sunshade, if you want one, there is an extra expense. Also an illuminated reticle that doesn't flood the view. Athlon's warranty and customer service is good. I have been using it for a couple of years from distances of 10 to 100 yards and it does what I need it to do and then some.
 
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Different pellets are going to shoot differently. Even different pellets of the same weight might have a different POI. Hash marks or dots might help, but they can also be confusing. I've always tried to find a single pellet that shoots well and stuck with it. Of course, I'm old and easily confused, but I've never seen the need to switch pellets.
 
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dianap5 said:
Ok I see. My scope doesn't have marks just center cross. I've wanted a better scope for while but I've had a really hard time finding quality 1" scopes. And it has to be 1" because I use these scope rings that allow me to see my iron sights through them and I dont want to give that up. And haven't been able to find scope rings is any other size that allow me to still see the irons like I like it. Amy scope suggestions? If it had like interval marks im sure it'd be easier to remember the drop or gain.
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I'd recommend something like an older shotgun scope. Built to deal with tons of shock and recoil. Look on ebay. A lot of older scopes will have a 1 in tube. I also meant to document the clicks on the turrets. Not really the holdover or windage. But the clicks needed to zero the crosshairs.
 
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Another idea,the different pellets may have different size skirts or heads,Plus check out how the different pellets inter and extend in your magazine.
Do this,if you can,do not use your magazine and fit the pellets into the lead with your fingers...I personally think that there is something else going on.
The only way is to do a step by step process.,Try to be a detective.:giggle:
 
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