WarBoom Posted January 11, 2019 Share Posted January 11, 2019 (edited) Hey guys! First post here and I'm sure it has been asked before but I searched to no avail. I am converting and older(serial# 54) but unused Caspian 38S/SC open gun to 9mm major. It originally had a Bar-Sto barrel, no popple holes, with a full length cone and a 3 port comp with six ~3/8" side holes made by the smith. I just cant afford to compete and practice with 38SC. I've ordered a 355 KKM bull barrel but I'm not sure what compensator to buy. I plan on using 124-125gr jhp over either CFE or 3N38. So, what would be a good comp to use? How many holes or chambers? Thanks. Edited January 11, 2019 by WarBoom Link to comment Share on other sites More sharing options...
Posvar Posted January 11, 2019 Share Posted January 11, 2019 Lots of guys run the Cheely and also @Aircooled6racer makes one as well Link to comment Share on other sites More sharing options...
Posvar Posted January 11, 2019 Share Posted January 11, 2019 I’ve had guns with two and some with three popple holes. With the right load I couldn’t tell much difference Link to comment Share on other sites More sharing options...
kensfl Posted January 11, 2019 Share Posted January 11, 2019 Separate issue from your original post, but are you confident the mags will work reliably in 9mm? Link to comment Share on other sites More sharing options...
MikeBurgess Posted January 11, 2019 Share Posted January 11, 2019 Separate issue from your original post, but are you confident the mags will work reliably in 9mm? I've had really good luck with MBX mags or converted tanfoglio mags. Running 9mmSent from my SM-N960U using Tapatalk Link to comment Share on other sites More sharing options...
echotango Posted January 11, 2019 Share Posted January 11, 2019 (edited) I have used Cheely comps (ti and steel). They worked great. Tested a Matt McClearn 13-5 and put them on both guns. Awesome comp. Edited January 13, 2019 by echotango Link to comment Share on other sites More sharing options...
WarBoom Posted January 11, 2019 Author Share Posted January 11, 2019 Lots of guys run the Cheely and also [mention=9254]Aircooled6racer[/mention] makes one as well The cheely 5 port is one that I’ve been looking at. My deltapoint mount is one of his undrilled models. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
MikeBurgess Posted January 11, 2019 Share Posted January 11, 2019 For the OP I'll be the guy that says it probably doesnt matter that much. Choose a comp that you like the concept behind and run with it.Logic says that if one comp is truly "better" then all comps would be basically the same, but they are not so you can have to come to one of two conclusions, either lots of people are selling crap comps to people that are happily using them succsefully or most comps are close enough in performance that it doesnt matter. Sent from my SM-N960U using Tapatalk Link to comment Share on other sites More sharing options...
WarBoom Posted January 11, 2019 Author Share Posted January 11, 2019 Separate issue from your original post, but are you confident the mags will work reliably in 9mm? They run 38SC just fine. I know 9mm is a bit shorter but I hope I won’t have any issues. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
WarBoom Posted January 11, 2019 Author Share Posted January 11, 2019 For the OP I'll be the guy that says it probably doesnt matter that much. Choose a comp that you like the concept behind and run with it.Logic says that if one comp is truly "better" then all comps would be basically the same, but they are not so you can have to come to one of two conclusions, either lots of people are selling crap comps to people that are happily using them succsefully or most comps are close enough in performance that it doesnt matter. Sent from my SM-N960U using TapatalkI ask because the comp on the gun wasn’t built with major loads in mind. It would lock the gun in battery with anything approaching major speeds. We drilled the side ports to relieve some pressure to allow the gun to function. I just want to make sure it works. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
mcattack Posted January 11, 2019 Share Posted January 11, 2019 Running a Cheely 5 ti comp no barrel holes works good but so does my 4 port EGW. I have tried dozens of comps and it all comes down to getting one and getting used to it and practicing because they all work about the same just depends on the what the individual likes. I personally do not like the heavy comps I cant seem to transition the gun as well. Link to comment Share on other sites More sharing options...
WarBoom Posted January 11, 2019 Author Share Posted January 11, 2019 Running a Cheely 5 ti comp no barrel holes works good but so does my 4 port EGW. I have tried dozens of comps and it all comes down to getting one and getting used to it and practicing because they all work about the same just depends on the what the individual likes. I personally do not like the heavy comps I cant seem to transition the gun as well.A Ti Cheely is definitely on the short list. Maybe a Brazos. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Sarge Posted January 11, 2019 Share Posted January 11, 2019 5 minutes ago, WarBoom said: A Ti Cheely is definitely on the short list. Sent from my iPhone using Tapatalk Agreed! Anything Matt puts out is just as good or better than anything on the market. Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted January 11, 2019 Share Posted January 11, 2019 I've read lots of good things about aircooledracers comps. Link to comment Share on other sites More sharing options...
mcattack Posted January 11, 2019 Share Posted January 11, 2019 Anyone have a picture of the aircooledracers comps I have never seen one of those. Just curious. Link to comment Share on other sites More sharing options...
MikeBurgess Posted January 11, 2019 Share Posted January 11, 2019 I ask because the comp on the gun wasn’t built with major loads in mind. It would lock the gun in battery with anything approaching major speeds. We drilled the side ports to relieve some pressure to allow the gun to function. I just want to make sure it works. Sent from my iPhone using TapatalkThe comp on the gun has 3 decent sized up ports plus the side ports you added. 3 up ports is plenty good for anything we do. Anything keeping it from running major with that comp prior to (or after) drilling the side ports had to do with fitting or springs. Sent from my SM-N960U using Tapatalk Link to comment Share on other sites More sharing options...
WarBoom Posted January 11, 2019 Author Share Posted January 11, 2019 The comp on the gun has 3 decent sized up ports plus the side ports you added. 3 up ports is plenty good for anything we do. Anything keeping it from running major with that comp prior to (or after) drilling the side ports had to do with fitting or springs. Sent from my SM-N960U using TapatalkYou would think so. It would run just fine with a light load but a major load it would never leave battery. With the comp off it would run just fine with any load. It appeared to have so much downward pressure on the barrel that it would never leave lockup. That was with a varied combo of springs lightest being a 6# slide and a 14# hammer. Slowly increasing the side holes allowed it to come farther and farther out of battery until it started running. It now has a 10# slide and a 20# hammer. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
zzt Posted January 11, 2019 Share Posted January 11, 2019 Here is a picture of Eric's comp. One of the advantages, IMO, is the ports are well forward in the blank. That allows you to add poppels in the rear of the comp rather than in the barrel. Link to comment Share on other sites More sharing options...
MikeBurgess Posted January 11, 2019 Share Posted January 11, 2019 3 hours ago, WarBoom said: You would think so. It would run just fine with a light load but a major load it would never leave battery. With the comp off it would run just fine with any load. It appeared to have so much downward pressure on the barrel that it would never leave lockup. That was with a varied combo of springs lightest being a 6# slide and a 14# hammer. Slowly increasing the side holes allowed it to come farther and farther out of battery until it started running. It now has a 10# slide and a 20# hammer. Sent from my iPhone using Tapatalk I don't doubt that there was a issue, I would strongly suspect there was a fitment issue of some causing the problems. Most likely some sort of binding due to the comp movement. Link to comment Share on other sites More sharing options...
jcc7x7 Posted January 11, 2019 Share Posted January 11, 2019 19 minutes ago, MikeBurgess said: I don't doubt that there was a issue, I would strongly suspect there was a fitment issue of some causing the problems. Most likely some sort of binding due to the comp movement. Suggest getting it to someone who knows open guns and get it checked out for BBL lock up and comp clearance. Link to comment Share on other sites More sharing options...
WarBoom Posted January 11, 2019 Author Share Posted January 11, 2019 Suggest getting it to someone who knows open guns and get it checked out for BBL lock up and comp clearance.Someone who does know open guns and has built plenty was the smith who looked at it and figured out the issue. .020 gap for the comp and .048 lockup were right on the money apparently. Center hits on the primers as well. Gun would hand cycle fine when pushed against a wall.He thought it had to be a binding issue as well. All the internals were polished to a mirror to no avail and then shot with marking paint on surfaces with no sign of any binding. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
jcc7x7 Posted January 11, 2019 Share Posted January 11, 2019 Ok.seemed unusual that it would run with minor but lock up with major. Link to comment Share on other sites More sharing options...
WarBoom Posted January 11, 2019 Author Share Posted January 11, 2019 Ok.seemed unusual that it would run with minor but lock up with major.Less gas pressure from what he said. It didn’t lockup per-say, it just never tried to leave battery. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
accu9 Posted January 11, 2019 Share Posted January 11, 2019 23 minutes ago, WarBoom said: Less gas pressure from what he said. It didn’t lockup per-say, it just never tried to leave battery. Sent from my iPhone using Tapatalk Sounds like a timing issue to me. Link to comment Share on other sites More sharing options...
WarBoom Posted January 11, 2019 Author Share Posted January 11, 2019 Sounds like a timing issue to me. And yet the only thing that fixed it was drilling the holes in the comp....Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
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