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Filling Your Own SCBA Tanks - How Warm is Too Warm?

The more heat you generate the more pressure you will end up losing in the scba tank after it cools to ambient temp. The dive shop I go to puts the tanks in water as they fill.
Please don’t take this as argumentitive.
I worked ten years at my local dive shop and was privvy to dive industry media. There was a time when filling steel and aluminum scuba tanks in water was fairly popular, especially before aluminum tanks arrived. Steels used to heat up very quickly because the walls were only about 3/16” thick and passed heat very readily.
What they found out was that lackies in some dive shops would either, let the fill whip connector hang in the water or it accidentally fell in the water tank. They did not crack the fill whip fill valve to purge the water out. So when they hooked the fill whip to the tank the small bit of water blew into the tank. Rusting and pitting would start in steels and corrosion in aluminums. After repeated fills it added up. Then, because the lackies were causing the problem the industry adopted a mandatory yearly tank inspection called Visial Inspection Plan (or Protection) VIP for short. That way they could charge the customer for the problem they created. Brilliant actually.
Water tanks slowly fell out of favor but some are still in use.
Before I bought my compressor I had a guppy sized tank. The paintball shop I went to jammed 2,000 psi into it in about 2 nanoseconds. So I used to put my tank in my chest freezer for a half hour then take it out, wrap it in a towel and then take it to the jammer. The pressure drop was minimal compared to a room temp tank that was jammed. YMMV.

Got a FFP Meopta Optika 6 5-30×56 in MIL coming in next week.

Thought I would pick up on this thread instead of starting a new one as it already has good info in it.

As several people said, these scopes have caught my eye a few times, and after seeing Steve’s comments and getting a recommendation from another friend, I went back and read the reviews… again, to remember why they caught my eye in the first place a while back. I like nice scopes, but I also like trying low and mid range scopes to possibly save money and get a good scope. There are a lot of very good reviews on them, so with the current sales, I thought I should try one befor buying my next $1500 scope. At less than half price of my current considerations, $700 looks tempting enough.

Every review I found said the same thing about the optical quality… well above its price range. That is good, because his price range usually leaves some to be desired. Not bad scopes, but scopes like the Athlon Ares, Vortex PSTII, etc. Scopes that are good for the price.

I always prefer FFP, but have had several high mag SFP scopes in a row, so it was good to get back to FFP. I really want a 30x as well, so again… fits the bill.

I received it this week and was able to quickly sight it in and shoot for about an hour. So far, I am digging it!

Out of the box…
  • Cheap cardboard box, but I am ok with that, because I hate paying more for packaging. Saves everyone money!
  • No sun shade or scope caps (bikini included) , but many scopes in this range don’t. Not a deal breaker, but these are the things I wish would be included. Can’t find the Sun shade in stock anywhere at all, but turns out that the Athlon ETR shade supposedly fits.
  • I like the knurling on the knobs. Not harsh but big allowing for a good grip. The mag ring has a built in hump that I like as well, so I may not use the included screw in assist knob for it.
  • I love a big beefy scope and this fits that bill! I kinda like the blue ring around it as well.
Using the scope…
  • Turrets - People always ask about turrets.
    • They have an oddity as many have said. Why locking on elevation instead of windage? I bet that gets swapped in the next generation! I keep trying to turn the elevation without unlocking it and I keep trying to unlock the windage!
    • No idea while they went “mostly toolless” on the elevation, but then have the coin screw slot on the windage. Again… another change sure to come.
    • I personally like the clicks. They aren’t so firm that it is hard to move, and they aren’t mushy so you can’t tell when they click. I think it is a good firmness that is right in the middle. They tracked exactly as I expected up/down left/right and were spot on.
  • Reticle - I went with the tree MIL reticle that Ilya designed. I am very happy with this reticle.
    • I prefer Mil, because 10s just make more sense and are easier to keep track of when counting clicks.
    • The reticle is thick, and I love it!!! I always prefer a thicker reticle, as it makes it so easy to see.
    • Not overly busy and I like the 0.2 markings. I usually prefer a plainer reticle (no tree), but didn’t really want the mil dots.
    • Limited illumination. This is ok for me. Just the center dot and surrounding cross.
  • Optical quality is nice. I was shooting from 4-5pm in the woods, so low light performance is important to me. This scope was doing great even at 5 when the sun was almost down. I’ll know more with more testing on this, so more to come.
Seems like there was more I wanted to say, but this has turned into a long post, so I hope it helped if you made it that far!

Projectiles  SOLD JSB 25.39 Redesigned Monster .22 200 ct. - (9 Tins)

WTS: (9) Tins of JSB 25.39 - Redesigned Monster .22 200 ct.

- Price: $80 shipped CONUS.
- Shipping will be USPS 3-day priority.
- Payment: PayPal F&F.

All (9) tins are new and unopened (there is no seal on these). Tin's purchased from PA over last couple of years.

Email: [email protected] if interested.


JSB 25.39 - Redesigned Monster .22 200 ct. - Pic 1.jpg
JSB 25.39 - Redesigned Monster .22 200 ct. - Pic 2.jpg

An airgunners best friend

I still guessatmate by feel of hand ..

If the fasteners slip or movement = too loose if it strips or snaps = well too tight. Almost a 3 bears thing. Too loose too tight or just right.

All jokes aside ot can pay to have a good toque driver ..

Home Depot got a new digital one now that replaced the mechanical one I " use to have". Loned to a buddy and that was the last I seen it .. friends ya know.

Benjamin .177 match pellets.

Measuring head size with a 'Pellet Gage ' is an art rather than science. There is minor variations in roundness and some could fit by moving the head around a bit in the hole, I thought that was cheating so if they didn't almost fall in they went to the next size.
I'm no expert at this.
I've had the same concerns with the Pelletgage and pretty much gave up on it because of it. These days if I load one and it feels off I just shoot it away and load another. Either way, thank you for taking the time to do the heavy lifting for us.

Benjamin  Bulldog m357 compressor suggestion

How many shots can you get out of a portable tank like a 74 cubic ft tank?
id guess you could fill it 12-15 times ... it only takes one shot per critter though haha .. thats alot of dead bodies to bury per tank! ...

@bubatrucking What @dizzums said. I think I can get an average of around 13-14 fills on my original stock .357 Benjamin Bulldog. I’d really have to dig through some notes from a couple of years ago to confirm this number. Since I have my own compressor to top-off my SCBA tank, I stopped counting. Now the problem is filling my SCBA when I feel like operating my compressor. Not a bad problem to have.

PCP Rifle  SOLD Last of my collection

I posted my collection of airguns for sale and all but one sold in one day. Thank you for the opportunity to allow others to enjoy these great guns.

I have found three that are sitting in my safe that will go.
The remaining .25 Ataman MR2 Carbine. $495. Show room condition and still under Pyramid warranty. Full walnut stock.
Like new, flawless Sheridan .20 Blue Streak with fancy walnut stock. Perfect and every way. $375. Look on EBay at the range of these guns offered and prices.
AirForce Condor .25cal. No moderator. Top hat kit and in original box. Fired less than ten times. Perfect. $425

Shipping is staggering now. But, I can help a bit. If you are interested contact me at 760-855-8184 for pictures. I respond f to text very quickly. Pacific time.
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BRK Sniper XR and Pard NV008S-LRF Rabbits

I have mounted the PARD on my XR Sniper permanently now as I use it the most at night because of the ability to "turn it down" when needed. I have all the profiles in the gun for each of the NV008S - LRF settings so I can "tune it" to the shooting conditions. I walk hunt with my lighter rifles - EVOL 15" and now an FX Compact Hunter, but I have hunted with the BRK and I switch out the stock to the "Safari" wood version which I find to be better at a quick free-standing shot (which I rarely take!). I haul my Primos trigger stick with me whenever I go out due to old age hand tremors. I used my Leofoto cf tripod with the Bog Deathgrip on the video above.
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