 |  | | | |  | |  |  | Pellet Weight? Pelletor question pulled from another topic |  | |  |  | |
 Posted: Tue Aug 05, 2008 5:34 pm |
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| AirGunEric |
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| Pelletor wrote: |
Thanks very much for the replies!
Oh I almost forgot.... The trigger pull is way high and a long travel distance too ...almost run out of breath as I "squeeze" of a shot....
@ thepaladin
I have been "protecting" 3 bird feeders from squirrels and had just about had them trained to feed only on the ground below the feeders when the targeting went crazy. At first they were eating the feeders too and had also chewed their way into the storage box on my deck where the bird food was kept. When that happened I killed 3 of them on 3 separate occasions using only BB's.
And I think, I too, am off pumpers now!
@ AirGunEric
I would be happy to erase my post and repost it elsewhere if you like? Being new here I don't want to go against protocol. The reasoning I used is if another newbie did a search for "newbie" that search would find at least two topics covered under this post.
The 1st two pumps are relatively easy...
Thanks for the pdf file... I do like to tinker and have that pdf and the owner's manual pdf too. Sadly because of my ignorance of all things airgun related when I bought the 2100 I only recently realized it was a smooth bore ....Geeeees! So I'm thinking maybe I should move up to an inexpensive rifled shooter.
But that means deciding what kind hence one of my questions about "springers" in my 1st post....but now I'm reading about how important it is to have the exact right weight pellet for them. Not too light or too heavy to do no harm to the gun! Is that difficult to do? Sigh! So maybe I'm back to a CO2 or compressed air shooter?
My ignorance has diminished but only by a little.....
@ Silver Dak
I had mentioned shooting "expert" with several weapons but the pistol was not one of them. My very brief expose shooting a .45 was kneeling next to an empty 55 gal metal drum where each shot was a LOUD reverberating explosion... at least that's the excuse I've used to explain my poor marksmanship with that hand gun.
Pelletor ( Bob C.) |
Sorry about this method of moving the topic around a bit- time to maybe look into an upgrade around here!
As for the issue you mention of pellet weight being critical in a spring-powered gun- that may be overstated a bit at times.
Yes, as the energy output in a selection of airguns goes up, the heavier a pellet you use the less potential for causing any damage to the gun (specifically piston seals and/or the spring). That being said- using a lighter pellet won't necessarily hurt anything.
Dry-firing a springer can/will cause damage faster (especially on higher-output guns) as there is no air "cushion" against the piston as it moves forward. A light pellet moves through the barrel faster and exits sooner- possibly before the piston has travelled it's full stroke length- so there is more impact between the piston/seal and the tube end than if the pellet had not left the barrel by the time the impact occurred- i.e. less air cushion. There is some cushioning effect in this situation- just not as much as there could be.
If we wanted maximum air cushion effect- we'd plug the end of the barrel- but that would defeat the point of owning the gun! 
Bottom line, in my opinion anyways, is that you should find the pellet that works best for you in a specific gun. Try to keep it on the heavier side (i.e. maybe avoid something light like an RWS/Diana 'Hobby' pellet) so as to minimize potential damage and wear over time- but don't let the weight of the pellet dictate which/what spring gun, if any, you might decide to buy. Every airgun is going to need repairs sooner or later- hopefully later, but if one were to use an extremely heavy pellet, to their own detriment in shooting, merely to avoid future maintenance/repair- it may take longer for the gun to need some work- but it will happen anyways- all springs lose tension over time, even unloaded sitting in the closet, and most seals will disintegrate eventually, either through wear or age- or both. |
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| Posted: Tue Aug 05, 2008 7:38 pm |
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| Old Pa |
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And I would digress into the ballistic topic of sectional density as long as no one thought (or cared) that I was (or was not) casting aspersions on women from east Texas.  |
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"The trouble with most people is not what they don't know, but what they know for certain that isn't true."
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| Posted: Tue Aug 05, 2008 10:08 pm |
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| AirGunEric |
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Huh?!?
All I caught was 'casting aspersions on women from east Texas'.
Is there something wrong with women from east Texas? I had a buddy move to Houston many years ago and never heard from him again- maybe the women got him?  |
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| Posted: Wed Aug 06, 2008 12:09 am |
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| Pelletor |
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@ AirGunEric
Thanks for moving this to its own topic and expanding my understanding of pellet mass vs. gun use/damage/life...
@ Old Pa
I owned a sectional couch once...But I don't think any woman from Texas ( east or west) ever sat on it?  |
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| Posted: Wed Aug 06, 2008 7:28 am |
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| Old Pa |
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Sectional density is the ratio of an object's weight to its cross-sectional area; it conveys the ability for an object to overcome resistance. I just like to introduce the subject by anticipating the confusion of projectile persuasion with a loopy bunch of ladies.
Our airgun pellets, with their drawn hollow skirts, have no where near the sectional density of regular lead bullets. Consequently, their penetrative performance at the target is significantly less than a solid lead projectile of similar length. This construction detail probably also explains in part our airguns sensitivity to and favoritism for particular brand/designs of pellets. |
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_________________
Doing my duty . . . the way I see it.
"The trouble with most people is not what they don't know, but what they know for certain that isn't true."
Mark Twain |
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| Posted: Wed Aug 06, 2008 10:03 am |
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| Pelletor |
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| Posted: Wed Aug 06, 2008 10:14 am |
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| Old Pa |
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| I've also heard sectional density referred to as "pellet pressure", but sectional density is the proper ballistic term for mathematical measure of a projectile's penetrative capacity independent of velocity. Goes hand in hand with a projectile's ballistic coefficient. "Use enough gun" could be more practically stated as "use enough sectional density". Am I suggesting the good velocity does not matter? Of course not. Good velocity, that velocity at which a projectile may be driven for the flatest trajectory and the best possible accuracy is the key to having the projectile arrive at its terminal target where its sectional density may be brought to bear. |
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_________________
Doing my duty . . . the way I see it.
"The trouble with most people is not what they don't know, but what they know for certain that isn't true."
Mark Twain |
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