Phill-W68 547 Posted August 1, 2020 Report Share Posted August 1, 2020 On 01/08/2020 at 18:08, si brown said: I recon about 70ish at 56ftlb but the new ones are better and turn out more Expand By new, do you mean with the power plenum already installed? Quote Link to post
si brown 8,486 Posted August 1, 2020 Report Share Posted August 1, 2020 On 01/08/2020 at 18:21, Phill-W68 said: By new, do you mean with the power plenum already installed? Expand Yeah.. the old ones work fine but the power plenum lets you run more shots per fill 1 Quote Link to post
villaman 9,983 Posted August 2, 2020 Report Share Posted August 2, 2020 Yep , more shots at a lower reg pressure my .25 impact is running at 72 ftlbs on 125 bar reg pressure with the power plenum fitted . Anyone who has a FAC older impact then these power plenum are worth fitting 1 Quote Link to post
Dervburner 2,549 Posted August 3, 2020 Author Report Share Posted August 3, 2020 On 02/08/2020 at 22:15, villaman said: Yep , more shots at a lower reg pressure my .25 impact is running at 72 ftlbs on 125 bar reg pressure with the power plenum fitted . Anyone who has a FAC older impact then these power plenum are worth fitting Expand What do you think would probably be a good reg pressure for a .22 impact with 700mm barrel vm? Mine is at 95 bar at the moment and I haven’t tried it at any other pressure other than 65 bar that it was set at (32ft lb)out of the box. It’s got a power plenum and it was running at around 43 ft lb on maximum at 95 bar reg pressure with 21 grain slugs. I’ve turned the hammer spring tension down a bit and it’s at 40ft lb now on max. Would going up to 125 bar be an advantage in .22 or do you think it would be too much ? Sorry about all the questions vm, but I know you have the .22 crown as well and a lot of experience with these fac fx’s . Quote Link to post
villaman 9,983 Posted August 3, 2020 Report Share Posted August 3, 2020 On 03/08/2020 at 15:58, Dervburner said: What do you think would probably be a good reg pressure for a .22 impact with 700mm barrel vm? Mine is at 95 bar at the moment and I haven’t tried it at any other pressure other than 65 bar that it was set at (32ft lb)out of the box. It’s got a power plenum and it was running at around 43 ft lb on maximum at 95 bar reg pressure with 21 grain slugs. I’ve turned the hammer spring tension down a bit and it’s at 40ft lb now on max. Would going up to 125 bar be an advantage in .22 or do you think it would be too much ? Sorry about all the questions vm, but I know you have the .22 crown as well and a lot of experience with these fac fx’s . Expand You want to be shooting H&N slugs around 920-970 FPS . I shoot them through the crown at 925-930 about 40 ftlbs . Best thing is to try it at 120 and see what the shot count is like and accuracy 1 Quote Link to post
Phill-W68 547 Posted August 3, 2020 Report Share Posted August 3, 2020 On 02/08/2020 at 22:15, villaman said: Yep , more shots at a lower reg pressure my .25 impact is running at 72 ftlbs on 125 bar reg pressure with the power plenum fitted . Anyone who has a FAC older impact then these power plenum are worth fitting Expand Wow crazy, what weight pellet is that vm? Quote Link to post
philpot 5,005 Posted August 3, 2020 Report Share Posted August 3, 2020 On 01/08/2020 at 19:19, si brown said: Yeah.. the old ones work fine but the power plenum lets you run more shots per fill Expand Have you fitted the power plenum Si. Phil Quote Link to post
si brown 8,486 Posted August 3, 2020 Report Share Posted August 3, 2020 On 03/08/2020 at 17:53, philpot said: Have you fitted the power plenum Si. Phil Expand na.. dont think I need to Phil , I set impact up yesterday to shoot the hades, turned power down got it running well at 880fps and recon I got 80'ish shots off last night before I needed to top up! although the fx slugs were w@nk in mine I had it launching them at 1050fps without the power plenum. save your pennies Phil 1 Quote Link to post
villaman 9,983 Posted August 3, 2020 Report Share Posted August 3, 2020 On 03/08/2020 at 17:41, Phill-W68 said: Wow crazy, what weight pellet is that vm? Expand 21 gr H&N slugs 1 Quote Link to post
villaman 9,983 Posted August 3, 2020 Report Share Posted August 3, 2020 On 03/08/2020 at 17:53, philpot said: Have you fitted the power plenum Si. Phil Expand Phil my mate fitted one to his ( my old one ) and 600 mm barrel running at 62 ftlbs on 130 reg , now he has tuned it to 900 FPS with JSB mk2 33.9 gr , absolutely brilliant, yes worth £113 All day long 1 Quote Link to post
Dervburner 2,549 Posted August 17, 2020 Author Report Share Posted August 17, 2020 On 31/07/2020 at 15:59, si brown said: Nice going dev, there a good bit of kit! once you get use to it you’ll be stretching it way further Expand Yarp, a few years ago I’d never have thought I’d shoot a rabbit beyond a 100 yards with an air rifle. This one was 112, popped its eyes out. The two before this, I over compensated and missed over the top. 3 Quote Link to post
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