I thought most would wind up between 3.9 and 4.1 gn. They are spread quite a evenly all the way from less than 33.5 to 35 gn. Strangely there were a lot weighing 33.6gn.
Not sure what to think weighing JSB
- Thread starter Drumsnguns
- Start date
I thought most would wind up between 3.9 and 4.1 gn. They are spread quite a evenly all the way from less than 33.5 to 35 gn. Strangely there were a lot weighing 33.6gn.
You have discovered the limitations of mass production. JSB makes hundreds of millions of pellets. They strive for a certain weight, but tolerances will vary.
I was in manufacturing for 40 years and was driven nuts by people in QC who thought zero deviation from the norm was possible.
I was in manufacturing for 40 years and was driven nuts by people in QC who thought zero deviation from the norm was possible.
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G
Guest
Guest
You will be better served by sizing your pellets rather than weighing them. Sizing will yield more significant improvements than weighing and sorting. I found that my Diana springers both prefer a .218 pellet in the .22 cal. There is a thread about it somewhere on the forum. The difference was quite significant.
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Have to agree with oldspook, unless you are shooting long range (over 50 yards ) finding the head size your gun likes will be more beneficial. Glad to see you are striving for better accuracy !! J.L.
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Thanks for the input from you guys.
Interestingly I knew from years ago that my Diana Model 52, .22 prefers the 5.52mm Head size
For sizing, what apparatus is needed?
I generally don’t bother shooting below 60 yard. Just not much of a challenge there.
Did you say sizing is better for shorter distances?
Also, yeah I really don’t expect to see zero deviation but was surprised at how evenly. wide spread the sample was. I was expecting a steeper bell curve.
Thanks
KP
Interestingly I knew from years ago that my Diana Model 52, .22 prefers the 5.52mm Head size
For sizing, what apparatus is needed?
I generally don’t bother shooting below 60 yard. Just not much of a challenge there.
Did you say sizing is better for shorter distances?
Also, yeah I really don’t expect to see zero deviation but was surprised at how evenly. wide spread the sample was. I was expecting a steeper bell curve.
Thanks
KP
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Drums, The only tool I know of to accurately check pellet head size is the " Pelletgage" (do a google search) Or contact Baker Airguns as they have them in stock, It is mfg. by a guy here on the forums and is accurate to ten microns. For what it's worth I shoot field target and some bench rest and only shoot out to 55 yards with .177 cal. What I have done is weight and head sized the ones I shoot tournaments with but I only head size the ones I practice with as I see VERY little difference in a few tenth's of a grain for 55 yards.
On the other hand if I was shooting bench rest at 100 yards or so (with a larger Caliber ) I believe it would be very important to do every thing possible to have the best ammo I could have. I feel that our guns are only limited by the ammo that is available, J.S.B may be the best you can buy but as you have found out, THEY AINT PERFECT!! by any means!! by sorting I have all but eliminated "FLYERS" from my shooting. It'a very boring job but in my estimation well worth it !! Good luck!! J.L.
On the other hand if I was shooting bench rest at 100 yards or so (with a larger Caliber ) I believe it would be very important to do every thing possible to have the best ammo I could have. I feel that our guns are only limited by the ammo that is available, J.S.B may be the best you can buy but as you have found out, THEY AINT PERFECT!! by any means!! by sorting I have all but eliminated "FLYERS" from my shooting. It'a very boring job but in my estimation well worth it !! Good luck!! J.L.
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Whitefox
Thanks for the info and yep boring is the operative word. Great info though.
I’m not competing, just trying to up my game a bit.Weighing has helped but it can only go up from there.
Thanks
KP
Thanks for the info and yep boring is the operative word. Great info though.
I’m not competing, just trying to up my game a bit.Weighing has helped but it can only go up from there.
Thanks
KP
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G
Guest
Guest
Given the higher weight of your rounds getting them within .01g of each other isn't going to make much difference. Given their weight and I would group them in 1g increments after sizing. I suppose you could group them in .5g groups but I don't think you will notice much difference if any.
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I have mine in 0.1gn groups. Was thinking about grouping maybe within 0.5.
Worth a try. I’ll shoot across that range before combining.
Worth a try. I’ll shoot across that range before combining.
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That's just like the idea of 100% uptime in tech, where people don't comprehend that even 99.99% uptime means 52mins of downtime per year. Nothing is ever perfect!
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