16 gram CO2 in Raptor?

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Fred Martin

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I was wondering if you could use a 16 Gm CO2 cartridge in a raptor. I don’t know if the thread sizes are the same. I don’t know if there are any other limiting factors. I have seen that the 16 g cartridges have three eights by 24 threads. I believe that is the same for the 20 g. I see there is one kit for 8 to 12 g and another for 20 up. Just wondering what to use for 16.
 
The Peregrine accepts the 8gr and 16gr cartridges, or at least it comes with those cartridges as options from Tiner Rocketry. I have two Peregrines and two Raptors, and in my opinion, the Raptor is a superior design with less moving parts.

The Raptor accepts cartridges with 1/2"-20 neck. Here is a link to Leland's product offering, you can sort it by "Neck Type," just click any 1/2"-20. I use the 20gr 84201Z in my Raptor. However, CO2 is more forgiving with too much. If you have the physical space, I would just go with the stock 23gr or this 20gr, which are physically the same dimensions.

I am sure you know this, but I will say it anyway, ground test, ground test, ground test, first.

Here is a link to something you might be interested in. I designed them to organize my inventory of CO2 cartridges. https://www.thingiverse.com/thing:3968769
 
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Thanks for your response. Sorry for the delay in getting back, but I’ve been tied up at work. I looked at the link you supplied for Leland‘s cartridges. I could not find a place to purchase them. I have searched Amazon and eBay as well as general Internet search. I can find singles but not bulk. I found other brands of 20 g cartridges. One vendor told me it was a three eights inch fitting. I’m surprised this is not a standard Thread size for the size cartridge. With there be a problem in using a 3/8 to half-inch npt adaptor such as this one:
Anderson Metals 56110 Brass Pipe Fitting, Hex Bushing, 1/2" NPT Female Pipe x 3/8" NPT Male Pipe https://www.amazon.com/dp/B005L90NA2/ref=cm_sw_r_cp_api_i_icXZDb8VYX9D7
The description is a little deceiving but I believe the fittings are proper. I found some 20 g cartridges from a beer brewer fo $1.99 ea. But the owner says 3 eights inch threads. Some bicycle shops sell them as well. I just want to make sure I’ve got a source for cartridges prior to purchasing the raptor. I believe the peregrine would be big enough, but I believe your comment that the Raptor is better. Would like to be able to increase volume if necessary.
 
Fred Martin said:
Thanks for your response. Sorry for the delay in getting back, but I’ve been tied up at work. I looked at the link you supplied for Leland‘s cartridges. I could not find a place to purchase them. I have searched Amazon and eBay as well as general Internet search. I can find singles but not bulk. I found other brands of 20 g cartridges. One vendor told me it was a three eights inch fitting. I’m surprised this is not a standard Thread size for the size cartridge. With there be a problem in using a 3/8 to half-inch npt adaptor such as this one:
Anderson Metals 56110 Brass Pipe Fitting, Hex Bushing, 1/2" NPT Female Pipe x 3/8" NPT Male Pipe https://www.amazon.com/dp/B005L90NA2/ref=cm_sw_r_cp_api_i_icXZDb8VYX9D7
The description is a little deceiving but I believe the fittings are proper. I found some 20 g cartridges from a beer brewer fo $1.99 ea. But the owner says 3 eights inch threads. Some bicycle shops sell them as well. I just want to make sure I’ve got a source for cartridges prior to purchasing the raptor. I believe the peregrine would be big enough, but I believe your comment that the Raptor is better. Would like to be able to increase volume if necessary.
Click to expand...

I have no idea if an adapter will work or have any depreciative effect on the reliability or performance of the system, except I would be inclined not to use it.

When dealing with Leland, you have to call or email them to place the order, I dealt with a lady called Marie, and she was very helpful. Below is the contact info I used

[email protected]
(P)800.984.9793

The Peregrine encapsulates the CO2 cartridges in black anodized aluminum housings, so the physical size is fixed to the cartridges they have. The Raptor is an entirely different design, which has less moving parts and is more flexible. The best way to understand them, without having them in your hand, is to look at the assembly instructions. Below are two links for each respective system

Peregrine https://media.wix.com/ugd//b73de9_5073f5498c5742f5e23ac0728a139904.pdf
Raptor https://12f23cf9-3149-6c03-4d40-a5b...d/b73de9_1cf9c63dfeaa4018908df6f9ba02c0ca.pdf
 
most CO2 cartridges used/available are a 3/8-24 thread (not a pipe thread). The 12gr,16gr and 25gr(?) commonly available at bike shops for use in bike tire inflators are 3/8-24, as are the 38gr cartridges used in Fat Tire bike inflators. The Rousetech CD3 system uses the same thread. One nice thing about the Rousetech system is the ability to mount to the shock cord with any size cylinder with the proper threads, not sure if the Peregrine is capable of the same versatility (I need to do some research on them).
 
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You mean like this? So you can use the $1.25 cylinders from your local bike shop in lieu of the $15 to $20 bucks a pop Leland ones? 20191119_075906.jpg
 
They're just 1/2"-20 x 3/8"-24 bushings. Just make sure that when Ya thread everything together you seat them so your cylinder of choice ends up at the correct depth for the pin to be able to poke it deep enough. Mine even thoughtfully came with threadlocker already on 'em. Might be a good idea to cut a screwdriver slot in the bottom before you put 'em in, otherwise you'll end up going caveman on 'em if you decide you want to remove
 
Wallace said:
You mean like this? So you can use the $1.25 cylinders from your local bike shop in lieu of the $15 to $20 bucks a pop Leland ones? View attachment 398970
Click to expand...
I have not paid over $10 iirc for the 38gr cylinders from Leland, and the 8,12, and 16gr are like $2.50 or less each, of course buying in quantity reduces the shipping cost. 16gr iirc were cheaper than smaller cylinders as they are the most common size. As soon as I can find my quote from Leland I will post the actual prices from my last order, Leland makes most of the cylinders bike shops sell I believe.

Edit: 16gr were $1.05 each, 12 gr were $2.85 ea, and 38 gr were $8.90 each. The 25gr were not on the invoice I had but were about $6 each iirc. All cylinders had 3/8x24 threaded.
 
Last edited:
For clarity; One on the left is as intended/stock. One on the right has the bushing and cheapie bike tire inflation cylinder.20191119_083908.jpg
 
rharshberger said:
I have not paid over $10 iirc for the 38gr cylinders from Leland, and the 8,12, and 16gr are like $2.50 or less each, of course buying in quantity reduces the shipping cost. 16gr iirc were cheaper than smaller cylinders as they are the most common size. As soon as I can find my quote from Leland I will post the actual prices from my last order, Leland makes most of the cylinders bike shops sell I believe.
Click to expand...
I just go to my local bike shop and get 'em for $1.25 out the door, 16 grammers are a buck each. Care to share a link for the $10 Lelands? I've never seen 'em
even close to that price. We are talking about the 1/2"-20 threaded cylinders correct? Because, the 1/2"-20's are oddballs, that's why so expensive.
 
Even at 10 bucks each, it's still a pricey system to operate. $10 will get you a 1/2 pound of B.P. and that's an awful lot of charges...
 
mpitfield said:
I didn't see the adapter in your pic, but I do now. As others posted, the cylinders are not as pricy as what you have seen, especially if you buy them from Leland in bulk. For the 23 gram cylinder, I paid $4.16 each, direct from Leland.
Click to expand...
Makes sense now. Can you please share a link to the cheap Lelands. Gotta be the 1'2"-20 threads though.
 
Wallace said:
Makes sense now. Can you please share a link to the cheap Lelands. Gotta be the 1'2"-20 threads though.
Click to expand...
I found my price sheet and appended my post, all of mine are 3/8x24 threaded which works on my 7.5" Nuclear Sledgehammer. The 1/2x20 is probably the reason for the higher price. Phyllis was my sales rep at Leland, great bunch to work with.
 
Yup, 3/8" 24 is a common size, therefore cheap. Since the Raptor has 1/2" 20 the price for the same gram wt. Cylinder litterally triples.
 
Thanks for all your replies! What I’m gathering from this is that the 3/8 24 cylinders cheaper because of the commonality. I had calculated that I need 12 to 16 g. The adapter in your picture is what I had in mind. Just to confirm they are not in Npt threads. The doctor in your picture does not appear to add any length to the apparatus. It is a good point that you need to check the distance to the puncture pin. I ordered a raptor. It seems like the peregrine would’ve filled my needs, but the consensus is that the Raptors a better device. If I have the need to go up to higher power it is available with the raptor. Too bad they don’t supply a device with the three eights x 24 from The company without having to use a workaround. Maybe something for the future. Thanks everyone for a good discussion.
-Fred
 
And here's one I see that commonly causes people to believe the wrong thing. C02 cylinders that are 1/2' 2O threaded ARE NOT gonna be found for $4.00 or even $10.00. Even if you buy a pallet, you'll not get them that cheap. If I am wrong, I'll accept it and apologize. Why has not one single person that claimed such shown us a link to theses "deals"? Please show all of us where to get them for the betterment of the community. I call Bu@4sh&t...
 
The Raptor system CLEARLY sates that it takes ONLY 1/2"20 threaded cylinders. So wtf is your concept behind calling out pricing 3/8" 24 threaded that CLEARLY cost WAY less but will not work with the Raptor?
 
Wallace said:
And here's one I see that commonly causes people to believe the wrong thing. C02 cylinders that are 1/2' 2O threaded ARE NOT gonna be found for $4.00 or even $10.00. Even if you buy a pallet, you'll not get them that cheap. If I am wrong, I'll accept it and apologize. Why has not one single person that claimed such shown us a link to theses "deals"? Please show all of us where to get them for the betterment of the community. I call Bu@4sh&t...
Click to expand...

Did you contact Leland and ask for a quote?

I just checked my correspondence from when I placed my order in Sep/Oct 2018. I dealt with a Phyllis for the quote and Mary for the payment. You can reach. Phyllis at [email protected] and the P# for the 23gram cannister is 84203Z. I will PM you the actual quote that I received. You will also note that you don't have to order a large quantity to get that price. I bet they offer much deeper discounts than what I was quoted.
 
mpitfield said:
Did you contact Leland and ask for a quote?

I just checked my correspondence from when I placed my order in Sep/Oct 2018. I dealt with a Phyllis for the quote and Mary for the payment. You can reach. Phyllis at [email protected] and the P# for the 23gram cannister is 84203Z. I will PM you the actual quote that I received. You will also note that you don't have to order a large quantity to get that price. I bet they offer much deeper discounts than what I was quoted.
Click to expand...
$6.22 and $4.16 (for 20 and 23 gram cylinders respectively) Is WAY more reasonable than anything I've found to date (those are the actual 1/2"-20 threads btw.) . and, that quote was for Qty. 10 each, so not a huge quantity discount if any at all. Oddly enough the smaller ones actually cost more than the larger, so I guess we just chalk that up to supply and demand, I.E. the 23 grammers probably fit a popular soda making machine or some such nonsense.I now apologize and thank you Sir for proving that information. You are the first to not go all politician on me and talk around the subject in lieu of addressing it directly, and for that I give you 3 thumbs up and a "Like"
 
I'm always Leary of any business that requires you to contact them for pricing. We're not talking commodities trading when buying C02 are we? Does the price/supply fluctuate that greatly? Is C02 that rare and or mainly sourced from a communist country that tend to yank our chains? It has that feel like going out to eat and being handed a menu with no numbers on it. Just put up a D#@ pricing schedule and you'll get more business Leland...
 
mpitfield said:
The Peregrine accepts the 8gr and 16gr cartridges, or at least it comes with those cartridges as options from Tiner Rocketry. I have two Peregrines and two Raptors, and in my opinion, the Raptor is a superior design with less moving parts.

The Raptor accepts cartridges with 1/2"-20 neck. Here is a link to Leland's product offering, you can sort it by "Neck Type," just click any 1/2"-20. I use the 20gr 84201Z in my Raptor. However, CO2 is more forgiving with too much. If you have the physical space, I would just go with the stock 23gr or this 20gr, which are physically the same dimensions.

I am sure you know this, but I will say it anyway, ground test, ground test, ground test, first.

Here is a link to something you might be interested in. I designed them to organize my inventory of CO2 cartridges. https://www.thingiverse.com/thing:3968769
Click to expand...
Just noticed your Thingiverse Thing. Nice job! Way better than my usual method of just tossing everything in a bucket..Reminds me of this thing I found on Thingiverse. Holds thumb drives and both mini and full size SD cards. Prior 20191120_081252.jpg to that I just kept 'em in a cup, which probably wasn't the best of ideas..
 
Wallace said:
I.E. the 23 grammers probably fit a popular soda making machine or some such nonsense.
Click to expand...

I believe that the 23gram cylinder is widely used in inflatable life jackets.

Wallace said:
Just noticed your Thingiverse Thing. Nice job! Way better than my usual method of just tossing everything in a bucket..Reminds me of this thing I found on Thingiverse.
Click to expand...

Thingiverse is great for makers! I contribute designs, that others may find useful or inspiring.
 

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