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Air Gun Home Forum Index » General Air Gun Questions and Topics » Barrel Length vs Velocity (Co2-HPA)    View previous topic :: View next topic  Barrel Length vs Velocity (Co2-HPA)   Posted: Wed May 04, 2011 5:40 am Sholo Veteran Member Joined: 24 Mar 2011 Posts: 125 Location: Eastern Ontario Hi All: I,m trying to plan my next build,and I,m a little unsure as to what length of barrel to use. The build in question will be a 2250 HPA. I know that in Co2, the longer the barrel, the better (to a point). Does this hold true for hpa also? I am going for max FPE (or close anyways) Was planning to use 24" barrel, but would 18"-20" improve/reduce velocity? I suppose,for what they cost, I could buy both & experiment ( I'm sure Eric wouldn't mind if I ordered extra !!) Thanks for your time, Todd _________________ Cheers, Todd   Posted: Wed May 04, 2011 7:12 am packrat Senior Member Joined: 16 Nov 2009 Posts: 882 Location: Out in the woods...Ellabell, GA. Using the "SEARCH" feature, I found this for you...LOTS of good reading on all aspects of building an HPA rifle. It's 4-5 pages of some of the most in-depth testing , with results and graphs, of building a performance designed HPA gun,,,enjoy. http://www.airgunhome.com/agforum/viewtopic.php?t=3165&highlight=hpa+barrel+length _________________ HEY !! This getting old thing is NOT for sissies...   Posted: Wed May 04, 2011 10:02 am rsterne Moderator Joined: 15 Jan 2008 Posts: 2998 Location: Coalmont, BC If you are going for power, the longer the barrel the better, certainly out to 30" or so.... more on a really high powered gun.... but the returns dimish, of course.... However in practical terms the 24" Crosman barrel is your best choice.... It will definitely be better than a shorter barrel in a high powered gun.... Bob _________________ Dominion Marksman Silver Shield - 5890 x 6000 in 1976, and downhill ever since! Airsonal: Too many to count!   Posted: Wed May 04, 2011 6:53 pm Sholo Veteran Member Joined: 24 Mar 2011 Posts: 125 Location: Eastern Ontario Thanks Rsterne, I kinda figured longer was better, just wanted to be sure. Wifey said longer is better, but I'm not completely sure she was talking about AG's Thank you Packrat for the link - I think...Awesome info, (still trying to wrap my head around it all!) Pretty sure I'll have to read it 1 or 2 or 15 times more! I did use the "SEARCH" feature, but apparently didn't type the right info Maybe I should just go to CT and buy a slingshot! _________________ Cheers, Todd   Posted: Thu May 05, 2011 9:35 am Crosman140 Senior Member Joined: 13 Dec 2008 Posts: 663 Location: USA Sholo wrote: Thanks Rsterne, I kinda figured longer was better, just wanted to be sure. Wifey said longer is better, but I'm not completely sure she was talking about AG's Thank you Packrat for the link - I think...Awesome info, (still trying to wrap my head around it all!) Pretty sure I'll have to read it 1 or 2 or 15 times more! I did use the "SEARCH" feature, but apparently didn't type the right info Maybe I should just go to CT and buy a slingshot! Sholo, sometimes the search functions built in to forums just plain don't work well. Here is what I do... go to google.com. Type in your search criteria followed by site:airgunhome.com. This will tell google to return results only found on that specific site. It is a much more proficient search than a forum search feature. Like this... copy and paste this into google.com longer shorter barrel hpa site:airgunhome.com This is just one example and may not return the results you desire, but you get the idea. _________________ My Critter Gitters .22 Crosman 140 (1955) .177 Crosman G1 (2009) .177 Crosman 1377 (2009) .177 Daisy 880 (2019) BB Daisy Red Ryder (2012) BB Daisy Buck (2019) BB Crosman 1600 (1980) BB Marksman 1010 (1979)   Posted: Thu May 05, 2011 9:08 pm Sholo Veteran Member Joined: 24 Mar 2011 Posts: 125 Location: Eastern Ontario Thanks Crosman140, that helps alot! I do find the forum search a little hit and miss at times, but seeing as I'm no computer wiz, (I won't tell you how long it took me to type this! ) I figured it was just me. I do usually find what I'm looking for though, I just take scenic route! Now if you'll excuse me, I have to "google" something... Todd _________________ Cheers, Todd   Posted: Thu May 05, 2011 9:14 pm Crosman140 Senior Member Joined: 13 Dec 2008 Posts: 663 Location: USA Sholo wrote: Thanks Crosman140, that helps alot! I do find the forum search a little hit and miss at times, but seeing as I'm no computer wiz, (I won't tell you how long it took me to type this! ) I figured it was just me. I do usually find what I'm looking for though, I just take scenic route! Now if you'll excuse me, I have to "google" something... Todd As I mentioned above, it is typical of search functions built in to forums. Google has spent millions perfecting theirs. Heck, why not use it. Scenic route... That tickled me. _________________ My Critter Gitters .22 Crosman 140 (1955) .177 Crosman G1 (2009) .177 Crosman 1377 (2009) .177 Daisy 880 (2019) BB Daisy Red Ryder (2012) BB Daisy Buck (2019) BB Crosman 1600 (1980) BB Marksman 1010 (1979) Barrel Length vs Velocity (Co2-HPA)     Air Gun Home Forum Index » General Air Gun Questions and Topics You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum All times are GMT - 5 Hours   Page 1 of 1   All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First  Select a forum Main Forums----------------AirGunHome Q&AGeneral Air Gun Questions and TopicsPicture GalleryTarget Shooting: Casual, Fun and CompetitionHunting, Pest Control, Varminting People/Events/Airgun Issue Discussion----------------Introduce YourselfThe BS TopicClubs/Events/Regional/Political Airgun Issues Maintenance, Modification and Reviews----------------RiflesPistolsAntique, Collector and Novelty AirgunsBB GunsPellets/AmmoOpticsAccessoriesAirgun Smithing Buy, Sell or Trade Forums----------------For SaleWant to Buy   Note: If you are seeing "Please enter your username and password to log in." 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