Tac-41 - really dissapointed.

[BrizzleBloke]

Hello folks, newbie here, ive had my Tac41 for about a year, ive figured out lubing everything makes a huge difference to consistency, ive changed springs, i tried the spring spacers. Ive lubed the cup to make sure the piston seal is good.

 

However, the range is just sucky. Ive tried 28's 4's and 45's and am constantly out ranged by aeg and gbb players.

 

The site i play uses FPS as the limit, which is 354 for 0.4. and its sitting there fairly consistently with a 90nm spring, Rapax2.3 is too powerful.

 

Am i expecting too much? I can see the bb's drop way before the target, and im getting hit if i engage too close. Too much hop? - However it shoots straight for a while but just seems to get tired and fall out of the air! :)

 

Would a VMP help, or do i need to go whole hog and barrel etc.

 

Its just so frustrating, i just expected to have more of a tactical advantage.

 

All help very much appreciated.

 

[rj1986]

I would try new hop rubber + nub, and whilst you're there a new barrel (if you're feeling flush). Whilst my Tac 41 has just been dressed up and only had a spring change in it, the reviews say OOTB it should be pretty good.

Whack the hop up to overhop the 0.4's then dial it back to see what the flight path is.

 

A VMP wouldn't help address the issues of range/accuracy (i don't think, but happy for someone to correct me)but for more fine tuning and getting that last 5/10 fps.

Edited April 1 by rj1986

[Rogerborg]

Ahoy and welcome. I'm very sorry to hear that, and surprised too. My TAC-41 (gen 2, after they fixed the feed ramp) has been one of the very few airsoft purchases that's actually performed as advertised, right out of the box with just a spring change.

 

Your energy is spot on 2.3J, so that's not the problem.  It sounds like you're just very under-hopped.  Do you actually see a difference in BB trajectory as you increase the hop?  You should be able to send .28g BBs into low earth orbit with a decent amount of hop applied.  If not, on the off chance that there's something damaged in there, you could try a Chub Nub, or replace the hop rubber, or waaaaait a second.

 

When you say you've lubed it, including the "cup", have you put any sort of lube, like silicone oil, inside the barrel, hop unit, or inside the cylinder (or into the mags)?  Is it possible that you've fouled the hop rubber with lubricant?  And have you tried cleaning the hop rubber (and barrel) with a barrel cleaning rod and some paper towel / fabric patch, ideally with some isopropanol?

 

Hang in there, it's a decent design and we should be able to figure this out.

[BrizzleBloke]

Thanks @Rogerborg. 

 

So after reading you post I pulled the bolt out and cleaned it out properly, took the nub out also. Im tempted to send it into longbow for a service to see if they can help me figure out whats going on. I could really do with finding another Tac41 owner, a range and a couple of tinkering hours to spend side by side to see if we can figure out whats going on. 

 

Kind of feels like im just guessing and messing without someones more experienced eyes on it than mine  

 

But shopping list now i think is probably new barrell, hop rubber and chub nub. 

[Rogerborg]

The stock barrel is fine, and replacing it won't have any effect on whether it's hopped properly or not: that's all down to the hop unit, rubber, and nub.  Actually, stock everything should be fine, I suspect there's something wrong there.

 

I'd again ask whether you're seeing any hop effect being applied, particularly with 0.28g.  What's the hop set to?

[BrizzleBloke]

Ok .

 

I'll get it set up with some 28s and have a play later. I can just about get 20m cross the backyard for range. Ill also drop in the stock 75nm spring and post the results. 

Edited Monday at 14:30 by BrizzleBloke

[Badgerlicious]

20m really isn't enough to test hop up properly. A basic amount of hop will get you that far, and issues that aren't severe (like everything moving around) usually occur after 30m-40m. It should be getting to at least 70m stock. If you really want to waste a bit of money, and you don't have an easy range to measure out, a rangefinder can be had for about £100, so you can check real distances. though estimating on google maps on your local field is a cheaper but more difficult option. 

 

I do second Rogerborg's opinion that the hop rubber got lubed, which would have some pretty bad effects on the hop up.

 

One thing, if you haven't tried, is to check air seal. Plug the EMPTY barrel with a finger (empty that feed tube, be 100% sure) and fire it. It should at least cushion the piston, and not get the dry fire slam. Or if it's very good, you should be able to hold a bit of air pressure and hear it release when you remove your finger. With the consistency it's probably not this. but it's worth ruling out. 

Edited yesterday at 00:31 by Badgerlicious