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Yes, I think "expounding" may be right. I also think that with soft lead (JSB) you might see a bit of compression where the pellet slides home. I have previously retrieved some trig functions - if you imagine the circumference of a clock face, divide into 60 second (6 degree) segments, a flat...

The present Pelletgage calibers are: caliber millimeters equiv. inches BBGage 4.35 - 4.44 0.1713 - 0.1748 PG177 4.46 - 4.55 0.1756 - 0.1791 PG20 5.05 - 5.14 0.1988 - 0.2024 PG22 5.49 - 5.58 0.2161 - 0.2197 PG25 6.33 - 6.42 0.2492 -...

Pelletgage will give you a "go" (pellet < a specific diameter) and a "no-go", so that you know within a range of 0.01 mm (0.0004 in) the diameter of a pellet. A trapezoidal slot will only check two points on the circumference rather than the entire cylindrical diameter (it also would seem to...

The gage plate incremental diameters differ by 0.01 mm, (0.0004 in), the Pelletgage has ten apertures, or a span of 0.09 mm (0.0035 in) from smallest to largest. Apertures are guaranteed within 0.0025 mm (0.0001 inch) of nominal sizes. They are checked with class X plug gages. Note that "gage"...

I know this is an old post, but I developed (in 2015) and produce (thousands) of the Pelletgage. The metal is cut with a diode pumped fiber optic laser with a focused beam. It is made in Germany. It has a granite base - weighs about two and a half tons, costs about $400K. All the apertures on...

You might increase the challenge by requiring the shooter to stand on one leg, too? That would really separate those with acrobatic ability from the pedestrians. I agree, match winners are often the ones who get the best standing and kneeling scores. I'm pretty bad at both positions, but...

Kneeling as defined by AAFTA rules seems to me a very un-natural shooting position.

That is interesting. The method of analysis was a handheld XRF (X-ray fluorescence) instrument. Last year, I took three new tins of pellets, removed the requested sample weight, and sent them to an accredited lab in Pennsylvania for metallurgical analysis. I maintain that if you want "exact...

Jerry contacted me today. He ordered from a Pelletgage dealer, but he has a valid complaint. Jerry, I’ll ship you your PG tomorrow to the address you sent. I will attempt to satisfy any complaint on a Pelltgage or order issue. Jerry Cupples

Chuck, there is a version of Pelletgage, PelletgageR - made to sort pellets more efficiently. Each gage plate has 48 identical apertures. You can "stack" a larger gage plate over a smaller, and for instance use a 4.53 and a 4.51, sorting 48 pellets into three groups, >4.53, >4.51<4.53, and...

I have a friend in Austin who shoots extreme field target with a Daystate, using 18 grain JSB. He messaged me this morning, saying the most recent tins he has gotten were checking 5.57 mm with a Pelletgage. I have seen the difference in the recess formed by the punch in swaging have a visible...

It's interesting, this morning I got a message from a customer (an engineer I used to work with) asking if I made a PelletgageR in a size larger than 5.55 mm. I do not, but have had correspondence with customers telling me the their .22 caliber JSB-made pellets are all larger than the biggest...

Pelletgage was designed and first produced in 2015 for measuring the diameter of pellet heads. It is capable of determining head size within +/- 0.01 mm (0.0004 in) by a "go/no-go" process, with ten precision apertures cut into special sheets of fine grain stainless steel. It comes in .177, .20...

Hello, all, My name is Jerry Cupples - from Dallas, TX. I've been shooting airguns for about ten years. Started with a Mike Melick BAM, and have worked my way up to target rifles. For the past few years, I have been doing field target, and enjoy shooting my Marauder and TX200 in local events...