Sharoff..........that's a wonderful experiment ! The proof is on the paper. Great job.
Jamie
Jamie
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Pellet sizing
- Thread starter jamieinmd
- Start date
I had an arbor press setting around so I made a stand for my sizer dies. I just put a hole in a plastic jar and reenforced it so that pellets drop into it after sizing. Works great ! No sore fingers and the pellets drop right in, preventing spillage.
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Wash-Weigh-Size-Lube
I do this to every tin of pellets I use for comp shooting. Group to 1/4 inch at 25yds (indoor) with no filers. I always work my comp pellets.
I do this to every tin of pellets I use for comp shooting. Group to 1/4 inch at 25yds (indoor) with no filers. I always work my comp pellets.
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I am a believer ! Took the cheapest tin of pellets I have, CPHPs, 6.00 per tin at Wal- Mart. Sized them, sorted them to weight and BINGO ! My Royale shoots them into a single small hole at 25 yards and the Condor put 7 into the same small circle with two just out. I think it is the trigger on the Condor. I see a trigger job in that gun's future.
Before sizing and weighing them, i would get fliers out of both guns.
Jamie
Before sizing and weighing them, i would get fliers out of both guns.
Jamie
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Jamie
I've been following this post as well as Ajshoots post on how he sizes his .25 cal pellets.
I learned to slug the barrel with a pellet via AJshoots by pushing the pellet into the breech and then pushing it back out with a wooden rod from the other end. I measured 4.52 mm on my Thomas breech test.
I haven't done near as much as I would like yet but wanted to share what little testing Ive done.
I shoot a .177 Thomas FT rifle. I bought a pellet gauge and sorted a tin of 13.4 gr JSB Monsters which I shoot about 820 FPS for 20 FPE
The majority of my pellets were in the 4.54 head size with 4.53 and 4.55 being on the outer fringes for a .01 mm plus or minus for the 400 count tin which I thought was pretty tight tolerence.
http://pelletgage.com/products/177-pellet-gage
I have a Gempro 250 which I weighed these head sorted pellet with. My weights ranged from 13.2 grs to 13.6 grs with the majority being 13.4 grs giving a .2 grain plus or minus tolerence which again I thought was pretty tight?
http://www.oldwillknottscales.com/my-weigh-gempro-250.html?gclid=CPSDiZTZ_NACFZKFswodOxwAPg
I bought the 4.52mm and a 4.53 mm TBT head sizers like you recommended
I tried the 4.52 sizer first .
Here's the 5 shot group left target sized and the 5 shots right unsized
Looks like the 4.53 unsized group shot better than the 4.52 sized group? 1/4" grid paper
Weather was crappy and I was pressed for time before dark.
So the next I decided to use the 4.53 pellet sizer and was pleasantly surprised. The 4.53 sized group was considerably better than the 4.54 unsized group
Circles are 1/4" for comparison
I just haven't had time to do much more shooting and testing but this is really interesting to me and I agree there is something to it? I just ordered a pellet seater tonight and will also be testing to see if there are any benefits to that as well?
Oh, forgot to mention, those groups were at 28 yds and off bipod and rear bag rest. Most of my shooting is at 28yds and that's what I zero all my airgun scopes at.
Now again some days are better than others . I shot these two groups on a very calm day to compare my .177 Cricket Carbine to my Thomas. As you can see....the Cricket held it's own. Both groups shot straight from their perspective tins unsorted! 1/8" grid inside 1 inch square
Will let you guys know what I get with further testing when weather, work and daylight all come together to give me time to shoot ;-)
Great post BTW.
Jimmy
I've been following this post as well as Ajshoots post on how he sizes his .25 cal pellets.
I learned to slug the barrel with a pellet via AJshoots by pushing the pellet into the breech and then pushing it back out with a wooden rod from the other end. I measured 4.52 mm on my Thomas breech test.
I haven't done near as much as I would like yet but wanted to share what little testing Ive done.
I shoot a .177 Thomas FT rifle. I bought a pellet gauge and sorted a tin of 13.4 gr JSB Monsters which I shoot about 820 FPS for 20 FPE
The majority of my pellets were in the 4.54 head size with 4.53 and 4.55 being on the outer fringes for a .01 mm plus or minus for the 400 count tin which I thought was pretty tight tolerence.
http://pelletgage.com/products/177-pellet-gage
I have a Gempro 250 which I weighed these head sorted pellet with. My weights ranged from 13.2 grs to 13.6 grs with the majority being 13.4 grs giving a .2 grain plus or minus tolerence which again I thought was pretty tight?
http://www.oldwillknottscales.com/my-weigh-gempro-250.html?gclid=CPSDiZTZ_NACFZKFswodOxwAPg
I bought the 4.52mm and a 4.53 mm TBT head sizers like you recommended
I tried the 4.52 sizer first .
Here's the 5 shot group left target sized and the 5 shots right unsized
Looks like the 4.53 unsized group shot better than the 4.52 sized group? 1/4" grid paper
Weather was crappy and I was pressed for time before dark.
So the next I decided to use the 4.53 pellet sizer and was pleasantly surprised. The 4.53 sized group was considerably better than the 4.54 unsized group
Circles are 1/4" for comparison
I just haven't had time to do much more shooting and testing but this is really interesting to me and I agree there is something to it? I just ordered a pellet seater tonight and will also be testing to see if there are any benefits to that as well?
Oh, forgot to mention, those groups were at 28 yds and off bipod and rear bag rest. Most of my shooting is at 28yds and that's what I zero all my airgun scopes at.
Now again some days are better than others . I shot these two groups on a very calm day to compare my .177 Cricket Carbine to my Thomas. As you can see....the Cricket held it's own. Both groups shot straight from their perspective tins unsorted! 1/8" grid inside 1 inch square
Will let you guys know what I get with further testing when weather, work and daylight all come together to give me time to shoot ;-)
Great post BTW.
Jimmy
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Well, it has been over a year since buying the sizer dies. I am totally convinced that having all the pellets start out the same going down a choked barrel is worth the time and effort. I don;t shoot anything through my rifles without being sized first.
Jamie
Jamie
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Beside sizing your pellets Try weighing them also You will be surprised at the number of OUTLIERS in a TIN
Don't buy a CHEAP SCALE if you decide to do this. I have four cheap ones and finally bought the DIGITAL one from Franklin Arsenal that you can get at Midway.
Beside Air Guns I am a 300yd POWDER BURNING Bench Rest Shooter and a GR differential is important in developing a load
Good Luck
TOM
Don't buy a CHEAP SCALE if you decide to do this. I have four cheap ones and finally bought the DIGITAL one from Franklin Arsenal that you can get at Midway.
Beside Air Guns I am a 300yd POWDER BURNING Bench Rest Shooter and a GR differential is important in developing a load
Good Luck
TOM
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Dont know from the pictures messed up by PhotoBollox if you covered this, but here goes...
Some Generation 1 Sizer & videos - https://www.pimpmyairgun.com/viewtopic.php?f=167&t=1933
Some Generation 1 Sizer & videos - https://www.pimpmyairgun.com/viewtopic.php?f=167&t=1933
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How to mark increments ?
...tighten far end...then use a caliper to make your pencil marks with the caliper...and then finally bolt down hard...and verify measurements are correct for pencil marks...
Looks like this is going to be made by plenty of machinists...
NB: Has added benefit when not using this Pellet Sizer...Its a paper weight on your desk ;-)
...tighten far end...then use a caliper to make your pencil marks with the caliper...and then finally bolt down hard...and verify measurements are correct for pencil marks...
Looks like this is going to be made by plenty of machinists...
NB: Has added benefit when not using this Pellet Sizer...Its a paper weight on your desk ;-)
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Update, weighing sized CPHPs has been very revealing. Large variances but once weighed, they shoot really well, well enough for flies.
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