looking for some range SRC M4

[bareass]

hey guys and gals just have a quick suggestion.
i'm looking to get some more range out of the SRC M4.
owndering if i should replace the inner barrel with a madbull tightbore V2
or replace the hop up, was thinking of the madbull ultimate.
don't want to do both just yet.
thanks

[grantmac]

If you aren't shooting at least .28g BBs then that is the first step. After that I'd take a really hard look at installing a Shredder's Concave Spacer (IE: SCS) along with a better hop-up rubber.

I'm starting to think the barrel is the last place to look for accuracy.

-Grant

[bareass]

so your saying the hop up before the barrel.
anyone else

[shiftsup]

If you purchased as used AEG it might be best to clean the hop up rubber and nub first in warm water with dish detergent. Clean the barrel as well. Air drying before installing is a must.

If you wish to replace the hop up rubber, Guarder clear work fine.

If you wish to change the hop up unit, what you have chosen is fine.

Shredder SCS spacer is a good option as well. However, you may have to place a shim on the adjustment wheel for tightness as these spacers make the adjustment wheel much looser than it is with a regular hop up nub.

Shredder SCS work best with > .25g bb's.

When you install the hop up rubber make sure than silicone oil is only applied to the outside of the rubber. Oil inside will reduce the friction and therefore reduce the effectiveness.

After that, installing a TB barrel and air seal parts such as the piston head, cylinder and cylinder head are options for upgrades.

What kind of range are you looking for?

Or are you more interested in shot consistency?

[bareass]

i'm just looking to increase my range so i can engage targets earlier. i've notcied being in range of other AEGs before they are in my firing range, not a fan of that feeling!
that being said, i would like the accuracy to be there
i've heard the the madbull tight bore barrel did a good job of increasing range while making the grouping smaller on some other player's AEGs

[coach]

for starters:
tight bore inner barrel
guarder clear hopup rubber
heavier BB's

if you have the 2 piece hopup unit, you could consider the madbull ultimate hopup unit or another one piece design but it would require you to mod your receiver a little.

[Mitchell12]

Yea a tight bore barrel seems to be your best and easiest soloution, Along with cleaning everything of course. Upgrading the hop-up is usually the best way to improve consistency. Also make sure you are using some heavy ammo and adjusting your hop-up accordingly.

[bareass]

i use .25
would a hop-up rubber make a big difference?
its pretty cheap so i could probably change both the barrel and the rubber at once.
will this bring up my FPS as well?

[coach]

Originally Posted by bareass

i use .25
would a hop-up rubber make a big difference?
its pretty cheap so i could probably change both the barrel and the rubber at once.
will this bring up my FPS as well?

depending on what possible issues you currently have, a tb could net you a few FPS more than you currently got. a new rubber will help your BB's trajectory by inducing more back spin which will give you lift.

I put in the guarder clear with the madbull ultimate hopup on my m4 that had a 509mm MB TB and gain back FPS because of a bad air leak. but that's purely my own and only experience with this setup.

[m102404]

You are looking for increasing your effective range. i.e. you want to reliably hit something further out than you can now.

1. BB Weight (Free, sort of...since you're going to shoot BBs anyways)
You've got to be using 0.25g BBs at a minimum to get any kind of consistency at distance. 0.28/0.30 are really nice too to result in a more predictable shot pattern.

2. Hopup rubber (almost free, easy to swap, can be frustrating to find the right match)
They're so cheap and relatively easy to swap out. Make sure it's not torn, scratched, oily. Clean and consistent. Love the guarder clears...other guys prefer something else. Try LOTS of different ones...spend some time fine tuning the hopup. You'll hit a sweet spot with the BBs you're using with the rubber and the power level. Make sure your nub is long enough and isn't mishapened. Try a harder or softer nub with a given rubber.

3. (FREE, PITA) Keep your barrel and bbs clean, free of water, oil, grit, etc... That goes for your muzzle and all the dust/dirt/crap in your gun case too.

4. (can be free...takes some effort and attention on your part) Shot to shot FPS consistency....if your rifle is swinging 20+ FPS between shots....forget buying anything. Grab a screwdriver and fix the compression/airseal of your rifle.

5. Tightbore ($35-100+, easy to install). 6.04-6.03mm...keep it matched with your cylinder

6. FPS ($10-20, easy to swap). If you're expecting a 300fps tuned rifle to shoot as far as somone with at tuned 395fps rifle...you're going to be disappointed.

7. Sights (easy, can be expensive). Your sights must be capable of fine enough resolution so that you can place your shots on target. The sight system + rifle must be able to consistenly hit where aimed (at closer range)...to expect hits further out.

8. You (Free, not easy). Your shooting stance/postion/aim/etc....might not be conducive to accurate shooting. It ain't rocket science but I've seen some guys where it's be a pipe dream if they ever hit anything they were aimin at.

[CDN_Stalker]

Switch to 0.28g, that is the best and easiest upgrade you can do. 0.25g aren't that great outdoors, and regardless of what you put in the gun for upgrades, you'll still only be shooting 0.25g. The heavier BBs will give you a farther effective range, as well as increase your ability to punch through foliage.

[bareass]

i should maybe mention that i'm suing a S90 spring, my FPS is around 310 with .20s
is going up to .28 a good idea for a softer shooting gun? or will i be shooting too slow.
the fields around here are 399fps outdoor, and 350 indoor.
i could switch from season to season if i was over 350, but need to be less the 400. my stock spring is rated for 400, but the reviews always said about 410.

[kalnaren]

If you're shooting .28's, I recommend shooting at least 360fps on 0.20s. If you tune your gun really well you can have it down around 340 and still float them out pretty far. At 310 your FPS is going to be really low on 0.28s. IMO there IS a minimum FPS vs. Ammo Weight curve when it comes to airsoft.

[bareass]

thats what i thought. thats why i was thinking of the tight bore, it would up my FPS a little while helping with the range and tightening up the grouping

[grantmac]

IMHO, a tightbore has the worst cost/benefit ratio of any upgrade.

Its just not going to net you that much extra speed or power.
Really you should look at a spring that runs 360-380 fps. Then get a stock TM barrel (loose bore as possible) in a short length to swap in for CQB (ideally with a spare hop-up). The cylinder porting used for the longer outdoor barrel will be wrong for the short one and you will probably loose just enough speed to be under the CQB limit. I've tried this before and it let me run one gun in two different "modes" without having to open the mechbox all the time.

-Grant