moving from .2g to .25g ammo?

[bobthebuilder]

I'm looking for a bit of advice on ammo. I'm currently running .2g for everything, but I wondered if it was worth looking at .25g ammo for one or both of my guns.
my primary is a Cyma mp5sd with a mad-bull tight bore, putting out around 300-310fps, and my secondary is a KJW G23 running Z1 pro gas, with stock internals (no idea of FPS, haven't been asked to chrono it in a while)

is there likely to be any real advantage to going to the slightly heavier ammo? or would I be just as well sticking with the .2g? or is it a case of pick up a bottle and see how it does?

[Fizzy]

Re: moving from .2g to .25g ammo?

Personally, I'd say it's worth switching to 0.25s if you're running 3around 30fps or above, but as I said, that's more a personal opinion.

I found when running around the 300fps mark I wasn't gaining anything in terms of consistency, accuracy or range

[jssmitty96]

Re: moving from .2g to .25g ammo?

one of the easiest and best upgrades anyone can do imo gives you that little extra punch out of your gun and less wint drift and usiually abit more accuracy

[steve grey]

Re: moving from .2g to .25g ammo?

Personally, I'd say it's worth switching to 0.25s if you're running 3around 30fps or above,

I found when running around the 300fps mark I wasn't gaining anything in terms of consistency, accuracy or range

I think you're gonna have to clarify that one Fizz' lol.

[Danny_boy85]

Re: moving from .2g to .25g ammo?

I would stick to a .2 if you have a stock Marui pushing like 280ish fps. 300 ish fps to about 320 i would go with a .23 (yes they exist) and after that i would go .25

I use .25's as i use Gas and i find i get less bb's shattering in the guns.

But yes, general thing with bb's is a .25 is the better round

[Fizzy]

Re: moving from .2g to .25g ammo?

I think you're gonna have to clarify that one Fizz' lol.

Bah, I knew you'd have to ask...

Well, at around 45m with my M249 (chosen for the fact it's easy/quick to change the spring) running 304fps I was burst firing around 5 BBs and firing off a total of 25 onto a 6x6 target. I did this using .20s and .25s and I had better groupings with the 0.2s. Not by much mind, but it was just noticeable. This could just have been down to wind, as we were outdoors.

And although we didn't measure total range (as we had no accurate was or measuring it), I was getting further with the 0.2s than I was with the 0.25s. We did notice some 0.25s were going nearly as far as the 0.2s and I forget the exact amount (as this was years ago) but I think for every 1 0.25 in a rough 1m radius or maximum range, there were probably 10 0.2s

After sticking in a M100 spring, my 249 was running a tad over 345fps. We repeated the tests and there was definitely an improvement in accuracy on the target using the 0.25s but more noticeable was the range. We still weren't quite getting what we could get distance wise when using 0.2s but we were getting quite high number of 0.25s not far behind, where as the 0.2s were much more widely dispersed.

This was using black ICS 0.2s and white ICS 0.25s (so we knew which BBs were which)

I miss Jesus and our range tests!

[FireKnife]

Re: moving from .2g to .25g ammo?

Personally I would never use .2s in a primary or sidearm.

They lack the stability and to my mind .23s or .25s are the best for most pistols and AEGs.

I would only put .2s in moscarts, claymores or if I planned to do a high RPS setup that would be designed for laying down fire than aiming.

The cost difference is often not that much so just go for it I say.

'FireKnife'

[MajorLandmark]

Re: moving from .2g to .25g ammo?

As above I would recommend .25s for anyone running guns upgraded above stock TM fps. You get better consistency at range, and improved stability in light wind (strong winds are impossible to mitigate). I used to like .23s but frankly .25s are just so much easier to find, and give you more options over brand if you start having problems.

Zero One's .25 BBs have worked just fine for me, and are some of the most reasonably priced BBs out there. Not everyone would say the same for compatibility but the only feeding problems I have ever had with them were with a tight bore barrel on an AEG.

[snuff]

Re: moving from .2g to .25g ammo?

I use .25's in both my guns,my KWA M4A1 primary and a short M4 CQB,both chrono'd @ 330 fps 0n .2's.
I changed after advice from other more knowledgeable players and I've never looked back.
Just to add it depends on how you play,if you spray and pray don't bother but if like me you tend to single shot a lot you will see the benefits,it's amazing what difference the .05 makes they carry accurately further,even if the .2's go further they will lack the accuracy and therefore you will need more to hit the same target.
Try them is the best advice and then decide,you will be amazed it's well worth the extra £ per 1,000,I don't know the techy in's and out's but I've used them for the last 2 years with superb results,the group I play with all use .2's beacause they're cheaper and when they ask why I accurately outrange them I explain about the .25's but the money seems to outweigh the advantage...

[wedge75]

Re: moving from .2g to .25g ammo?

Use .25 in all my long accurate rifle eg Troy Rx ,m14 and long Masada and my pistol for cqb but .2 in my high ROF m4

[keithhibbert]

Re: moving from .2g to .25g ammo?

use nothing but .25's in both pistols and aeg's. Wouldn't go back. Using proball for over a year now and have had absolutely no issues.

[SunSpectre]

Re: moving from .2g to .25g ammo?

Bah, I knew you'd have to ask...

Well, at around 45m with my M249 (chosen for the fact it's easy/quick to change the spring) running 304fps I was burst firing around 5 BBs and firing off a total of 25 onto a 6x6 target. I did this using .20s and .25s and I had better groupings with the 0.2s. Not by much mind, but it was just noticeable. This could just have been down to wind, as we were outdoors.

And although we didn't measure total range (as we had no accurate was or measuring it), I was getting further with the 0.2s than I was with the 0.25s. We did notice some 0.25s were going nearly as far as the 0.2s and I forget the exact amount (as this was years ago) but I think for every 1 0.25 in a rough 1m radius or maximum range, there were probably 10 0.2s

After sticking in a M100 spring, my 249 was running a tad over 345fps. We repeated the tests and there was definitely an improvement in accuracy on the target using the 0.25s but more noticeable was the range. We still weren't quite getting what we could get distance wise when using 0.2s but we were getting quite high number of 0.25s not far behind, where as the 0.2s were much more widely dispersed.

This was using black ICS 0.2s and white ICS 0.25s (so we knew which BBs were which)

I miss Jesus and our range tests!

The range difference may have been due to the hop, you have to readjust it when you load different ammo as typically heavier ammo requires more hop to lift it, so before you do your test get your hop so the bbs are travelling straight when they hit the target. Also try and eliminate any human input, sometimes you cant get the machine vice that epicairsofthd use but a load of books with a bipod and only pulling the trigger, not shouldering the weapon should take out human error as a variable

[Lt. Macka]

Re: moving from .2g to .25g ammo?

Welcome to the big boy rounds.

I tried .23's and didn't notice any advantage over .2's. Then I switched to the .25's and haven't looked back.

I miss Jesus and our range tests!

What happened to Jesus? Not seen him around on the forums in a while....

[Black Templar]

Re: moving from .2g to .25g ammo?

.25 for the win, never really bothered with .2. Although the HK.45 flies on .36. Only use .25 in all the rifles.

[Fizzy]

Re: moving from .2g to .25g ammo?

The range difference may have been due to the hop, you have to readjust it when you load different ammo as typically heavier ammo requires more hop to lift it, so before you do your test get your hop so the bbs are travelling straight when they hit the target. Also try and eliminate any human input, sometimes you cant get the machine vice that epicairsofthd use but a load of books with a bipod and only pulling the trigger, not shouldering the weapon should take out human error as a variable

Hop was set after the change in BBs to be as flat as possible (Jesus was quite anal about hop settings, and it rubbed off )

Macka, I think he quit airsoft some time ago. Shame, he was quite knowledgeable