FX M4 .177 issues ahhhh!!

All I know is if I ever own an FX, it won't be an impact. Too many issues. I love to tinker on airguns, but they have to usable and head ache free. It's always the impacts I hear have issues.

As for hunting with one. They seem more of a bench gun setup to me. At least my m60b felt that way. Just not a design I prefer for off hand shooting.
I think the Maverick is the best choice.
 
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If I were an air rifle dealer, I would be a custom build shop that sells FX Impacts only and maintains/repairs only those rifles I sold.

Before I sold an Impact to a customer, I would ensure they understood:

1. Internal Ballistics & Lateral Throwoff.

2. External Ballistics & Aerodynamic Jump.

3. How the Air Valve, Macro, Micro, & Plenum Pressure settings and pellet design each affect 1. & 2. above.

4. The process for testing various pellets to identify the pellet(s) with the best Internal & External Ballistics.

5. How to establish the best air consumption efficiency when shooting the identified pellet(s).

6. How to determine and set the correct length of pull.

I would only sell an Impact with:

1. A top rail to protect the shroud.

2. A bottom rail to ensure zero load torque on the Bottle Connector/1st Regulator and allow more location adjustment when using a bipod.

3. A length adjustable Butt for setting the correct length of pull.
I agree if you where only going to sell FX impacts you would definitely have to be a custom shop and you wouldn’t really have time to sell or work on anything other than Impacts.

I see a market on teaching people how the impact works. Probably could even do some night classes or something.
 
I agree if you where only going to sell FX impacts you would definitely have to be a custom shop and you wouldn’t really have time to sell or work on anything other than Impacts.

I see a market on teaching people how the impact works. Probably could even do some night classes or something.
Or the gun could just do what it’s supposed to when people pay 2000.00 plus for it. These a bunch of other guns out there that shoot just as good if not better and don’t require all the extra stuff or night classes to learn how to make the gun shoot right.
 
I agree if you where only going to sell FX impacts you would definitely have to be a custom shop and you wouldn’t really have time to sell or work on anything other than Impacts.

I see a market on teaching people how the impact works. Probably could even do some night classes or something.
It would be a side job\hobby, no more than 6 rifles a year.

Order an Impact, disassemble it , rebuild it ensuring every part and assembly was within design spec.

Add the aftermarket top rail, bottom rail, and butt.

Group Tune the rifle indoors at 20 yards. Adjust the tune and efficiency to 50 yards outdoors.

Sell it to someone I want to know and work with.

Buy the next Impact.
Ll
I would get to know the people on the supply side, have interesting customers, and work on and shoot a rifle I truly enjoy.
 
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It would be a side job\hobby, no more than 6 rifles a year.

Order an Impact, disassemble it , rebuild it ensuring every part and assembly was within design spec.

Add the aftermarket top rail, bottom rail, and butt.

Group Tune the rifle indoors at 20 yards. Adjust the tune and efficiency to 50 yards outdoors.

Sell it to someone I want to know and work with.

Buy the next Impact.
Ll
I would get to know the people on the supply side, have interesting customers, and work on and shoot a rifle I truly enjoy.
Not me. One marriage was enough. I wouldn’t want to be married to that many customers. Having one buddy with an Impact and who doesn’t work on it is enough. I couldn’t even imagine as a one man operation and having 10+ “custom tuned with expectations” Impacts out there, the phone would have to eventually catch on fire.
 
Its not a tune! By process of elimination you never assume the solution is .... Or .... Fill in the blank. You first resolve each variable to concluded its not the issue. So wind was first. This isn't a hard math. Just pure process of elimination. You sir clearly haven't read the comments nor the scope of the issue. It went back for warranty once already for same issue.
Did I say it was the tune?
And no, I did not read the entire thread, but then again I did not reply to the entire thread I replied to the post I quoted and my comments on that stands.
If you do not understand the basics you cannot "eliminate" all the potential problems. Add a negative attitude to that and it is best you sell the (superb) rifle and move on.
If it is not the rifle's fault but "operator error" you can send it back as many times as you want it won't solve the problem.....
 
Did I say it was the tune?
And no, I did not read the entire thread, but then again I did not reply to the entire thread I replied to the post I quoted and my comments on that stands.
If you do not understand the basics you cannot "eliminate" all the potential problems. Add a negative attitude to that and it is best you sell the (superb) rifle and move on.
If it is not the rifle's fault but "operator error" you can send it back as many times as you want it won't solve the problem.....
Im not understanding how its operator error when your just taking it out of the box it’s shipped in and shooting it. And it’s not shooting how it should be. Again for the money the rifle should almost shoot itself. There should be no elimination of problems on a new gun.
I know plenty of other airgun makers that are better and cost less.
You can actually shoot them straight out of the box and hit hole on hole. And put them up for a month or two. And when you come back to them they still have air in them and still hit the place they did when you put them up.
Not a lot of impacts can do that.
 
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I stopped shooting 177 because of the POI shifts from wind
There is something for damn sure, comparing what i can do with .177 slugs at 100 yards on the best of days VS what i see .22 shooters do with pellets at the same distance.

Got a severe case of performance / accuracy anxiety.
So much so i often consider trying to change to the for me illegal .22 caliber and then have to chance it on ammo purchase from abroad.
The latter seemingly being OK, last year i did a few orders of .22 for my Cyclone.
Also sure if i looked i would be able to find a local source that would sell .22 to me, well at least pellets.

I wish they would fix airguns here, they do not belong under the same law as hunting, even if Yes a PCP can be deadly powerful.
It annoy the hell out of me, CUZ i feel what they did is like say you having to take the licence to operate semis with dangerous cargo to drive a car, or take a motorcycle license to drive a bicycle.

PS: Viking airgunner also did a bit on his M4 tuning.

 
I have used Impacts in .22 and .30 cal and at my age and skill level it doesn’t matter. Reading the wind is the key and it appears to me that the larger calibers are affected more because they have more surface area.
Also, lower BC, a 13 grain slug has the equivalent BC of a 44 grain FX hybrid slug. And even most .22 slugs have higher BC then some of the heavier .30 call slugs do.
 
Also, lower BC, a 13 grain slug has the equivalent BC of a 44 grain FX hybrid slug. And even most .22 slugs have higher BC then some of the heavier .30 call slugs do.
This is false on all subjects.

"Also, lower BC, a 13-grain slug has the equivalent BC of a 44-grain FX hybrid slug."

  • This is unlikely unless the 13-grain slug is an extremely aerodynamic projectile, such as one designed for sub-caliber performance with a very high form factor. Generally, BC increases with mass and sectional density, so a 13-grain projectile having the same BC as a 44-grain one would be rare unless the 44-grain slug has poor aerodynamic properties.
"And even most .22 slugs have higher BC than some of the heavier .30 cal slugs do."

  • This can be true in some cases but not as a general rule. BC is influenced by shape, mass, and sectional density. Some high-performance .22 caliber slugs with optimized shapes (e.g., long, boat-tailed designs) can have a better BC than poorly designed .30 caliber slugs, but in general, larger and heavier projectiles tend to have higher BCs if they are designed well.
 
This is false on all subjects.

"Also, lower BC, a 13-grain slug has the equivalent BC of a 44-grain FX hybrid slug."

  • This is unlikely unless the 13-grain slug is an extremely aerodynamic projectile, such as one designed for sub-caliber performance with a very high form factor. Generally, BC increases with mass and sectional density, so a 13-grain projectile having the same BC as a 44-grain one would be rare unless the 44-grain slug has poor aerodynamic properties.
"And even most .22 slugs have higher BC than some of the heavier .30 cal slugs do."

  • This can be true in some cases but not as a general rule. BC is influenced by shape, mass, and sectional density. Some high-performance .22 caliber slugs with optimized shapes (e.g., long, boat-tailed designs) can have a better BC than poorly designed .30 caliber slugs, but in general, larger and heavier projectiles tend to have higher BCs if they are designed well.
.07 is what the Hybrid .30 slugs sleeve stated and it's also what I have gotten before. VK 13.5gr slugs have a BC of between .068 and .072, NSA 12.5gr states a BC of .07 and I have gotten a BC as high as .08. 13.43gr JSB slugs have a BC of .066, which is extremely close to the Hybrids and about the same as .30 cal pellets. I'm not just spewing things out to be contradicting.