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The HAM 12 Gram CO2 Cartridge Mega Review – Part Two

In the first part of this HAM 12 Gram CO2 cartridge mega review, we covered the background to our tests. We also looked at 12 Gram CO2 cartridges from ASG and Crosman. Now it’s time to move on to examine Daisy, Gamo and SIG SAUER CO2s…

 


Daisy 12 Gram CO2 cartridges.

Daisy-branded 12 Gram CO2 cartridges are manufactured in Taiwan. They’re available in boxes of 5, 15 and 25.

The HAM 12 Gram CO2 Cartridge Mega Review - Part Two

As you can see, the packaging includes a card spacer to hold the necks of the cartridges and prevent them from moving around so much in shipping.

The HAM 12 Gram CO2 Cartridge Mega Review - Part Two

As before, HAM Tester Doug Wall weighed the cartridges using an incredibly-precise, laboratory-grade balance. Here’s what he found when he weighed the Daisy 12 Gram CO2 cartridges straight from the box.

The HAM 12 Gram CO2 Cartridge Mega Review - Part Two

As you can see, the average weight of the Daisy 12 Gram CO2 cartridges tested by HAM was 41.065 Grams. The lightest was 40.312 grams and the heaviest 41.473 Grams.

After puncturing, the weights of the empty cartridges can be seen in the chart below.

The HAM 12 Gram CO2 Cartridge Mega Review - Part Two

With an average empty weight of 29.330 Grams, the lightest Daisy cartridge weighed by HAM scaled 28.720 Grams. The heaviest weighed 29.502 Grams.

After taking one set of weights from the other, we’re left with the amount of CO2 that had been contained in the Daisy 12 gram CO2 cartridges tested by HAM.

The HAM 12 Gram CO2 Cartridge Mega Review - Part Two

Somewhat surprisingly, the Daisy 12 Gram CO2 cartridges tested by HAM contained an average of 11.734 Grams of CO2. The smallest amount of CO2 was 11.410 Grams, while only one cartridge that we tested actually contained more than 12 grams. That was 12.124 Grams.

The variation between largest and smallest CO2 content was good, however, at just 2.8%.

 


Gamo 12 Gram CO2 Cartridges.

Gamo 12 Gram CO2 cartridges are available in packs of 5 and 25. Although Gamo and Daisy are actually owned by the same holding company, these Gamo cartridges are manufactured in a different country. It’s actually Hungary.

As you can see, the 25-count Gamo CO2 cartridge box was the strongest of all, being double-walled card. All the other boxes were lighter, single-wall card.

The HAM 12 Gram CO2 Cartridge Mega Review - Part Two

The Gamo 12 Gram CO2 cartridges are also unusual in having paper labels attached to them. All the other cartridges HAM tested has the labeling printed directly on to the steel surface.

The HAM 12 Gram CO2 Cartridge Mega Review - Part Two

As curious minds will want to know, we included the weight of the label in our measurements!

The average weight of the 25 Gamo 12 Gram CO2 cartridges tested by HAM was 41.746 Grams. The lightest was 41.206 Grams and the heaviest 42.097 Grams.

The HAM 12 Gram CO2 Cartridge Mega Review - Part Two

The empty weights varied between 29.100 Grams and 29.970 Grams. The average was 29.609 Grams.

The HAM 12 Gram CO2 Cartridge Mega Review - Part Two

That means that the average weight of gas in the Gamo 12 Gram CO2 cartridges tested by HAM was 12.137 Grams. The lowest fill was 11.840 Grams and the highest 12.306 Grams. That’s a variability of 3.94% in CO2 content.

The HAM 12 Gram CO2 Cartridge Mega Review - Part Two


SIG SAUER 12 Gram CO2 Cartridges.

These 12 Gram CO2 cartridges are available in packs of 5, 15, 25 and 40. Like those from ASG and Daisy, they’re manufactured in Taiwan.

The HAM 12 Gram CO2 Cartridge Mega Review - Part Two

Again, there’s a card spacer to prevent movement in transit.

The HAM 12 Gram CO2 Cartridge Mega Review - Part Two

As we can see from the chart below, the SIG SAUER – now SIG AIR – 12 Gram CO2 cartridges weighed an average of 40.779 Grams straight from the box. The lightest weighed 40.348 Grams and the heaviest 41.914 Grams.

The HAM 12 Gram CO2 Cartridge Mega Review - Part Two

After piercing the cartridges and bleeding off the CO2, the empty weighs of the SIG SAUER 12 Gram cartridges tested by HAM averaged 28.895 Grams. The lightest was 28.456 Grams and the heaviest 29.181 Grams.

The HAM 12 Gram CO2 Cartridge Mega Review - Part Two

As we can immediately see from the chart below, that one heaviest cartridge had by far the most CO2 in it – actually 13.113 Grams. The smallest amount of CO2 in these cartridges tested by HAM was 11.557 Grams, giving a tight manufacturing fill variation of 3.46%. The average weight of CO2 was 11.557 Grams.

As we can see, only 6 out of the 25 12 Gram CO2 cartridges actually contained 12 Grams of CO2 or more.

The HAM 12 Gram CO2 Cartridge Mega Review - Part Two


For the final part of this Hard Air Magazine 12 Gram CO2 cartridge mega review, we’ll check out Umarex cartridges and summarize our findings. Stay tuned!