Recent content by stovepipe

I'm replying to my own post. OP has started other thread(s) to get people to help him and is now ignoring this one -- and everyone that responds to it. Screw this. stovepipe

Hi hgatesm. I'm kind of in disbelief as to how LITTLE help you've gotten, so far, with your question/problem. You didn''t specify the barrel length or which FX rifle, so maybe it just didn't get anyone's attention -- other than that of WorriedMan who showed you two NON-FX rifles. Maybe I...

Hi Superpete. I used up all my old nsa 54.5 slugs and never measured the diameter with calipers. I just now measured one of the new nsa 54.5 slugs and it was 0.3005 inches. The 5/10000 is just an extra 5 that my calipers add if it's anywhere between 0.300 and 0.301. The difference between...

My FX Maverick with 700mm heavy liner (1:18 twist) liked the old NSA 54.5. Like you, I can't get the new 54.5 design to group as well. Have you found a non-NSA 55 (ish) grain slug that works as well as the old NSA 54.5? stovepipe

Somewhere on this forum there must be a graph of muzzle velocity vs change in hammer spring preload when the plenum pressure stays the same. There should also be corresponding graph showing muzzle velocity vs change in plenum pressure when the hammer spring preload stays the same. There might...

My recent experience was that, when going out into the cold (low 30's F or lower) from room temperature, the plenum pressure went UP while shooting. Apparently, when my AMP regulator gets cold it doesn't shut off the flow of air to the plenum as easily as when it's warm. The increased plenum...

After my last post, I started wondering if my pressure gauge is giving me a different reading in warm vs cold temps. It's a wika 28mm 0-250 bar gauge for the plenum pressure. Hmmm... Thinking... I don't know. stovepipe

Hi Patrick1. I notice that you have not mentioned anything about changes in plenum pressure. Are we to assume that the plenum pressure is the same for every shot you take? What are your observations about plenum pressure in warm vs cold temps? Without knowing this, observations about muzzle...

With a 500mm barrel and a 580cc tank, there won't be much/any clearance for a moderator. You would need to find a moderator that is about the same diameter as the barrel shroud. I figure you already knew this or are not going to use a moderator (not everyone needs one). I just wanted to make...

Hi alcuerna. You have an air gauge to tell you what the air pressure is in the plenum, right? From what I've read, you haven't said anything about your plenum pressure other than you set it to 105 bar. It would help if you would write down the indicated plenum pressure immediately before each...

I don't have to own the 20-position wheel to tell you that it will have all the same downsides as the original fx powerwheel. Phil's micrometer is the only upgrade to the fx power wheel worth doing -- and it does it right. I was concerned about the micrometer's thimbal accidentally moving, but...

The specific camera sensors used and the "amplification" circuitry will play such a large role in "light sensitivity" that I would not assume anything based on magnification alone. stovepipe

Hi herryer223. I noticed in the picture of your maverick that you are still using grub screws in the "hand" that holds it to the cocking rod. ALL maverick owners should replace the grub screws with cap-head machine screws. Cap-head screws will use the full length of the threads in the "hand"...

I ditched the 2nd reg the same way you did -- just replaced the tube section that has the 2nd reg with a stock plenum section. That was about a year and a half ago. I still smile every time I look at where the 2nd reg USED to be :) stovepipe

I imagine if someone recorded the sound of a regulator cycle -- like with a direct to metal high-sensitivity and high dynamic range microphone recorded at 192K samples per second and 32-bits per sample (typical digital audio workstation setup on a home computer) and worked some audio magic on...