AP77

Thanks appreciated

Hi all, Has anyone experience with both rifles and can tell me if one is "better" than the other ? I understand these are both more or less VSR10 compatible and for the modest extra cost I thought about buying the former unless someone can tell me it's a no go ? I was also wondering the stock seems oddly similar to the SSG24 optional stock thus is they were compatible too 🙄 Thanks for any useful and constructive comments / help.

it was only to get closer to what I thought would be the site testing with the .2 BBs Thanks for the tips : Piston head to cylinder test : the piston was held by the pressure very well / did not travel all the way down and even after 15s there is a considerable amount of pressure left in the cylinder = PASS Nozzle to hop rubber lips test : the tissue did not moved at all = PASS After the above I did a shot-to-shot comparison with 0.43 BBs and found 5.8fps difference over 5 shots which seems not bad considering the comments above (?) therefore I did not do the other tests, although I did fire with a finger at the end of the inner barrel and had the same result as the first test above (the cylinder held pressure) thus a PASS ! Many thanks to all of you for your help with this, this is greatly appreciated

This is an average. I did a shot per shot reading this morning (attached) and If I am not mistaking I am well above the 2.32joules thus will have to remove some of the spacers on the spring..

Thanks Skara, would this help if I make the piston lighter ...? All noted thank you this is appreciated

These are fair points you raised. As I am not sure what to expect for Airsoft, I did some test (screen shot attached) with chrono results for .25 BBs in yellow and .43 in orange. Is a 50fps drop significant in Airsoft ? That’s a fair point about not worrying too much about being 1fps below the 500, I am just looking to stay around 450 which seems reasonable (?).

I will be using 0,43g -> I am a veteran but new to airsoft fps are measured with 0.2g if I am not mistaking ? at about 60mtr flat trajectory so about mid-range setting available -> are the measure done with minimum hop up for the fastest fps data ? at about 60mtr flat trajectory so about mid-range setting available -> are the measure done with minimum hop up for the fastest fps data ?

Hi all, I recently bought an SSG24 and upon cleaning and a full inspection, I installed an M150 spring to get just below 500fps. The seal is excellent and the piston is not worn however, the chronograph only get just below 400fps (1.82Joules) with 0.25 BBs when the Novritsch website's chart read I should have circa 480fps (2.15joules) with 0.2 BBs. I realise from 0.25 to 0.2 would imply a higher fps but I doubt it would make for the almost 20% inscrease (?). I checked the obvious and the barrel is not scratched and degreased / cleaned, so is the nozzle, brand new HopUp from Novritsch etc. Is someone has any idea where I missed the obvious ?