For a good shot count at a consistent pellet velocity you need a regulated air gun which the Crosman 1720T is not.Whatever settings you may find it will never get as good as a regulated air gun.Crosman has been complacent with their dominant market position in USA for way too long.Now there are many Chinese PCP air guns (pistols and rifles) that are better or much better.Crosman compete not on how good the air gun is, but on warranty and availability of parts.I agree that at this time (and for many years before) Crosman had the best warranty and best part availability and prices.I am not Chinese, I simply say what I think, which is a trait that has unfortunately been lost in this country.Crosman's latest PCPs (Akela, Cayden, Kratos) have been designed and made in Turkey.Apparently it's too expensive to do most things in this country, except for customer support, and obviously the management.I have never seen a manager who wants to outsource their job
Quote from: pinguinu01 on April 09, 2021, 07:30:42 PMFor a good shot count at a consistent pellet velocity you need a regulated air gun which the Crosman 1720T is not.Whatever settings you may find it will never get as good as a regulated air gun.Crosman has been complacent with their dominant market position in USA for way too long.Now there are many Chinese PCP air guns (pistols and rifles) that are better or much better.Crosman compete not on how good the air gun is, but on warranty and availability of parts.I agree that at this time (and for many years before) Crosman had the best warranty and best part availability and prices.I am not Chinese, I simply say what I think, which is a trait that has unfortunately been lost in this country.Crosman's latest PCPs (Akela, Cayden, Kratos) have been designed and made in Turkey.Apparently it's too expensive to do most things in this country, except for customer support, and obviously the management.I have never seen a manager who wants to outsource their job Obviously you have never owned/shot a 1720P.
Do you have a chronograph? Search here for bstaley mod. This will get you started. With the correct tune, you should be able to get a good 30+ shot string at that power level.
I set up my buddy's 1720T for a similar state of tunehttps://www.gatewaytoairguns.org/GTA/index.php?topic=86564The hammer spring tension and O-ring stack will vary from gun to gun. The best you can hope for is some semblance of a useful starting point. edit: Oops, I just realized Rod linked to a thread that references the same information.
I think the stock prod is .08. I would start there or just under. Worst case scenario you can fill the tp with jbweld and start over.I remember on one of mine the plastic piece that goes on the end of the barrel caused me accuracy issues and I ended up removing it.
It was part 012. It was only on the on pistol hat it caused issues.
Quote from: WildCJ5 on April 10, 2021, 09:21:15 PMI think the stock prod is .08. I would start there or just under. Worst case scenario you can fill the tp with jbweld and start over.I remember on one of mine the plastic piece that goes on the end of the barrel caused me accuracy issues and I ended up removing it.Just realised the barrel support / baffle arrangements in the 2220 / 1720t are very different. I know the part you mean, now.Though mine still has it in situ. I've found that not over tightening the shroud and end cap help on the 2220
Quote from: WildCJ5 on April 11, 2021, 10:28:16 AMIt was part 012. It was only on the on pistol hat it caused issues.Ah thanksHave you had any issues running without it?