RonLancs Posted June 9, 2021 Posted June 9, 2021 Hey all, Been a while.. I’ve got my first game in an age on Saturday (bit o CQB) and I opened my gat to give her a spruce and chrono’d her. Now, can’t remember what weight bb’s I had in stock but I’m pretty sure they’re either .25’s / 28’s. I’m getting 270 (ish, hop all the way off) from you guy’s experience reckon I’m field legal on .2’s? New piston o ring, new cylinder head and a squeaky clean barrel. Thanks in advance & good to be back. Ron
Hudson Posted June 9, 2021 Posted June 9, 2021 Assuming your site is regular limits; 1.13J =350fps on a 0.20 then you'll be fine. Even assuming you're using 0.28s at 270fps you'll be putting out about 0.95J So that should easily be under the limit. ?
Supporters Rogerborg Posted June 9, 2021 Supporters Posted June 9, 2021 I know them feels. It's good to be back. Yup, you're comfortably under, you could even go a bit higher. How was the air seal, and did you lube the o-rings? If not, a squirt of silicone oil down the nozzle (then blow it out on auto before reassembly) can perk up a tired toy.
RonLancs Posted June 9, 2021 Author Posted June 9, 2021 59 minutes ago, Rogerborg said: I know them feels. It's good to be back. Yup, you're comfortably under, you could even go a bit higher. How was the air seal, and did you lube the o-rings? If not, a squirt of silicone oil down the nozzle (then blow it out on auto before reassembly) can perk up a tired toy. Aye, I know the dance by now. Thanks tho. The only thing was I swapped a SHS m4 nozzle for the original blue plastic nozzle (CYMA MP5) as around 3-4 months ago when I last opened it up it was firing over 350 on .2’s so I’m cautious of chucking that back in. I’ll have a fettle tonight and see what’s going on.
RonLancs Posted June 9, 2021 Author Posted June 9, 2021 Hi gang, So if anyone’s interested put the SHS m4 nozzle back in and we’re getting highs of 280 on .28’s we all good you reckon? (Really don’t wanna she’ll out for some .2’s lol)
RavenUK Posted June 9, 2021 Posted June 9, 2021 High 280's on a .28 is just over 1J if I'm not mistaken so yes you should still be fine.
Supporters Lozart Posted June 9, 2021 Supporters Posted June 9, 2021 1 hour ago, RonLancs said: Hi gang, So if anyone’s interested put the SHS m4 nozzle back in and we’re getting highs of 280 on .28’s we all good you reckon? (Really don’t wanna she’ll out for some .2’s lol) 0.28 at 290FPS is 1.09 J so yeah, you're golden. FPS/Joules calculator: http://www.asiaairsoft.com/index_topic.php?did=23&didpath=/23
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