FX Impact Not So Compact

[KulaHI]

I shoot my .30 mainly on my property. To keep it neighbor friendly I added a DonnyFL Sumo and that cut the bark down quite a bit. But now that it was longer the smaller bottle looked out of proportion to the rest of the gun so decided to change it up a bit more. Swapped 300cc for 480cc and the Sumo for a Tanto. 

 

[sonny]

I used the tanto on my .25 Impact  Looks like it will knock em down

 

[Eaglehorn]

Looks nice! I'd been thinking about a similar build w/ a 580cc and a koi

 

[KulaHI]

Looks nice! I'd been thinking about a similar build w/ a 580cc and a koi

Thanks! 580cc and Koi should work. Koi is longer than the Tanto but same O.D. 

 

[DShepard]

That's still a lot of firepower in a smallish package. 

 

[HW97.22Sniper]

Sweet rig. Looks super handy.

 

[Redick]

Would look even better if you straighten up the ldc!Jmo.

 

[Skidoo165]

The 300cc looks better, hence the compact is supposed to be compact, i shoot 17.5gr nsa slugs@1080fps and can achieve one full mag on a 300cc tank which is impressive, but i see why u do it, not knocking the setup, gotta love the compact as it hangs with the 700mm guns all day!

 

[NickT]

Thanks for posting. A while ago, I was wondering if this was possible so it is great to see....

I have a couple questions that I hope someone can answer:

How much clearance is left between the moderator and bottle? I am ultimately wondering what is the maximum moderator diameter one could use. (I have a Huggett Astelle that is spec’d slightly larger)

What is the resulting weight of this setup? The reduced weight of the FX compact versions (Impact and WC) is intriguing to me. But, I don’t know much of the weight savings comes from the shorter barrel and shroud verses the shorter bottle or tube.

Thanks again for posting. Great looking gun. (I am, of course, envious.)

 

[KulaHI]

Thanks for posting. A while ago, I was wondering if this was possible so it is great to see....

I have a couple questions that I hope someone can answer:

How much clearance is left between the moderator and bottle? I am ultimately wondering what is the maximum moderator diameter one could use. (I have a Huggett Astelle that is spec’d slightly larger)

What is the resulting weight of this setup? The reduced weight of the FX compact versions (Impact and WC) is intriguing to me. But, I don’t know much of the weight savings comes from the shorter barrel and shroud verses the shorter bottle or tube.

Thanks again for posting. Great looking gun. (I am, of course, envious.)

NIck the DonnyFL Tanto is 1.22" OD. You can see in the last pic it barely clears so I wouldn't go with anything larger than a 1.22" OD. I've not weighed it but is heavier than with a stock 300cc bottle and no moderator but not by much. If you can find the weight specs of the 2 bottles then add the difference to the moderator weight then you can get a good idea of the weight increase.

DonnyFL tanto weights:

Weight: 

1. With 1/2 x 20 Bolt rear end cap: 3.9 oz
2. With 1/2 x 20 Cone rear end cap: 4.1 oz
3. With M20x1 Bolt rear end cap: 3.5 oz



Forgot to add the Saber Tactical ArcaSwiss extended trigger rail adds the bulk of the weight, but kinda balances out the whole thing when you have a full mag of .30s. Also I feel better doing offhand shooting using the rail rather than holding, and possibly placing undesired leverage, on the bottle.

 

[YZ]

 Why is there still no such thing for the Impact as the picture shows? I think the offset moderator should be the perfect solution for this topic. It'd be probably the best way to have a larger diameter moderator with a smaller length while still keeping the clearance between the moderator and bottle. 

 

[Bigragu]

Because to access the liner for a liner swap or clean, one would have to remove the bottle first, or pull the whole barrel assembly off