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Airforce  .177 Condor Slugger *FAIL*

Update:
Thanks to a generous forum member who sent some slugs to try out, I have some additional data, though still inconclusive

50 yards, no wind. Didnt chrony each of these, but settings unchanged since last outing.
Each group is 5 shot

JSB Knockout MK1 13.47gr .8 CTC
H&N 16gr 1.5 CTC
H&N 20gr 1.6 CTC
JSB Beast 16.2 (pellet) .9 CTC

So the Knockouts gave me some hope and tried another group... had an odd 'pfffff' immediately followed by a 'BANG' on one shot.
A couple shots later started to tank dump, quickly opened the bolt to find the slug had fallen out and was stuck. Lost about 1kPSI. Refilled and my remainder slugs didnt do so great (I only had two left). I assume the first shot needed to reseat the tophat proper.

So, it looks like I'll give the Knockouts a proper try, but I need to make a .177 pellet seater that will allow me to seat to a uniform depth and of course one that will allow for the short amount of space on the Condor. Easy enough.

While I wait on those to come in, I will retune the Condor with an O ring behind the tophat.
There is still the question of velocity. I initially had the NSA's running around the 980 mark. Maybe they like more or less or maybe the JSB Knockouts do. More testing. What appears apparent is that the choke seemed to less effect the Knockouts. Perhaps because they appear to have about a 1mm 'skirt' at the rear? In any case, more to do!
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Velocity for testing accuracy of slugs

I just got done testing and finalizing 🤞a new .22 barrel with slugs. Just taking a breather and saw this topic. A 520mm barrel is perfectly adequate in slug land. But if you have a Caiman X with a 520 and a Caiman Y? with a 620mm barrel sitting in front of you to test the same exact slugs, the same slug might work the best in both guns but your speed will be different. If you find a slug that groups best on your pellet tune, then move forward with that slug. You can then try to increase the speed and see what happens. Things may look fantastic as you increase speed, but it can be deceiving. It takes a minimum of 75 yards to tell you what you really have going on with what you think is excellent or even good.

The last tip is this. I love 500ish mm barrels. From years of experience, I kinda know the speeds of where I need to start testing. With a 500mm barrel, no matter how hard I fight it, I wind up with the accuracy I want at a lower velocity than I expected. And that’s with guns that I can control the valve. So don’t be surprised if your slugs shoot best slow and close to your good pellet tunes. It’s not easy to make a 500mm gun a fast and accurate gun. We are not the 950-1,000fps guys. They have long barrels.
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Now through Jan 31st - BUY Helix get mounts FREE

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Talk about a great airgun company.Moved it to industry feedback.

Airgun Revisions.I received an airgun from them that has a problem. I told them about it, and instead of just sending the part, they are sending me the whole unit. They are a customer-oriented business and listen and make things right.(y)
Good to hear! Try moving this to the industry feedback section before someone else does it for ya
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Crosman  Crosman 3622 upgrades

Was going to say to open up barrel and valve exhaust ports to 9/64", but seems you already went to 11/64" or so with a matched TP bushing ...

Playing with the hammer/striker spring tension will affect the bell curve of the shot string. If peaked at first with steady decline, reduce hammer spring tension. If starting with too low velocity then velocity peaks at lower pressure then increase hammer spring tension. Takes a bit of fiddling to get optimized for a flat-ish curve.

That tiny inlet hole will starve the valve to some extent, limiting peak power. I don't own a 3622 so not sure how far you can bore it out. Smaller transfer port bushings (between valve and barrel) can level out the bell curve of shot strings also, at the expense of peak power.

If someone wants "all the beans"... big ports, stout hammer spring and soft (or no) valve spring... Lol. Don't expect many shot though.

Apologies if my ramblings are redundant or otherwise well known. I'll be following silently from this point forward 😁
The rifle is tuned very well, giving me 20 shots between 17.5 and 18 ft/lbs. The next 10 shots, though slower and slower, were still decent. I am new (two years in) to airgunning, but it is a fun hobby for me and less expensive than cars. My goal is 20 shots with as much power as I can wring out with less than 4% deviation. This is my third pcp to try my hand at tuning. I bought a Benjamin Discovery to play with next.

Other  Moved to general discussion thread.

It's definitely my custom .35 Bighorn with a TJ barrel. 200fpe on max power with several shots on a fill. I can turn it down to 50fpe with that large surface area shooting 68gr hybrids that are devastating on small game and tons of shots per fill. Plus it's tuneability for any power level in-between. 500cc 250 bar fill or throw on a puncher breaker or mega tube with a modded valve and keep similar power adjustments and can throw it in a Breaker stock and have a bullpup if needed. Not to mention I can simply swap barrels and probes to go from .177 to .40 (Largest Caliber I can fit without a breech modification). Plus a custom arrow barrel from an airsaber.
Saweeeet
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N/A  SE Wisconsin PCP

My apologies I live in Oak Creek. So Bristol is not too far at all! BAGA huh? They are air rifle specific? Just curious. I am also NOT in farm country hehe. All I know is I shouldn’t be showing up places un announced at a farm or I might be the one getting hunted ;).
BAGA is is the Badgerland Air Gun Association, strictly airguns although the Kenosha County Conservation Club is where they meet has shooting for many disciplines.


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Taipan  Taipan Vet 2 700mm in .22 (Hype is real)

I’m not going hunting with my air guns , I may shoot competition.
I don’t think most of our air guns are going hunting. So why the dull
camo looks ? For me a nice walnut is tops, second being a brighter
colored laminate . Because of this only I am getting the Uragan over
the Veteran after I straighten out my present 5 rifles I’ve accumulated
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FX  Changing Fx M4 from 22 to 30

I would try decreasing hammer spring tension with the micro adjuster a click at a time and check you fps. You probably have too much hammer spring tension, wasting air.
Stop when your fps slows, then slowly turn in valve adjuster ⅛ turn check fps, stop when it starts to drop.
If your fps is slower than you want you will have to increases reg pressure, then start the process all over.
I have have good accuracy with the H&N Heavy slugs from 930 to 1000fps.
970 to 975 gives me enough ftlbs for dispatching varmints.
You are spot on. I have dropped the regulator pressure to 140bar and then had to play with the hammer strength. I have reached a sweet spot velocity of 930-940 with a nice grouping. Not only that but also getting additional mag. You are a champ!

Events  Air Gun Oregon & Air Guns of Arizona Extreme Air Gun Challenge May 1-4

I had a fun time, and the match was much better run than last year. Room for improvement in the scoring, and in communication.

My results were good, but I could have done better in 100Y BR pellet and slug (5th in both). 2nd in the EFT GP was satisfying, especially having high score on day 2 (58/60) in drizzle and wind, plus winning the shoot off for 2nd against current ladies WFTF World Champion Lauren Parsons. Long Range was a disappointment due to a failure of the cocking assembly in my .25 Skout Evo slugger. I had a good run going and could have finished 1st or 2nd.

For those looking at the pellet scores and thinking “the top 5 were only 214 to 219”, you haven’t experienced wind like this. It makes the wind at EBR and RMAC look tame…. Not necessarily the strength of the wind, but directional changes, mostly shifting from over your left shoulder to over your right shoulder and back every couple seconds. Plus a vertical component that we rarely see…. 😳

O Ring sizer

Uhh ya I kinda thought that could go without saying... :) My friend Dwight (RIP) did his valve engineering using the valve stem sealing on the ID, most guys use the OD. He reasoned that A our flow requirement was very low, and B dimensions are more tightly held on the ID. He was very much a genius valve designer, Dwight's been in the ground for 30 years, his designs are being manufactured today.
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That little old Crossman M1 full auto carbine.

Been checking those out, will probally pick up one when they are back in stock, most everybody is out.
Air gun Depot has a pre order.
Ya know it takes 2 CO2 cartridges , but you can put in a empty , and use just one. Thanks for reply.

RAW Rapid  HM1000x first impressions...

I just received a RAW HM1000x (.22 caliber, tactical stock) and thought I'd share my first impressions this PCP in case someone else is considering one.

Overall it feels great, solid in the hand with good balance just forward of the trigger. Weight (scoped) is reasonable - heavy enough to be stable without being uncomfortable. Fit and finish is excellent. The magazine fits snugly without being too tight.

I find the grip to be way too small - more suited to a teenager sized hand than an adult man. The length of pull is just over 13 inches at maximum extension which is a bit short for my preference. Not deal breakers but something I need to address.

I've only shot a couple of pellets to check operation, the lever is smooth and positive, trigger is light and crisp. The .22 caliber HM1000x is said the be tuned for 25 grain pellets at 50ish fpe. Haven't shot it over the chronograph (yet) but by the sound and recoil it's putting out a lot of energy.

I like the way the receiver is machined (scalloped) to allow easier hand feeding of projectiles. The safety design is something new to me but I'm sure I'll get used to it quickly.

Overall I'm pleased with the purchase and looking forward to spring and a chance to get some trigger time.

Cheers!

View attachment 529662
Martin Rutterford, founder and creator of RAW rifles is now selling laminated pistol grips for these guns. You can see them on his website: airguns-usa.com

Other  Silicone oil

I guess the take home message is that getting the oil into the fill fitting is a 50/50 (or maybe even a 0/100) thing. It does seem like it wouldn’t hurt anything and may help keep the o rings lubed if it does somehow get through the gun. In the end, I suppose I’ll know if I get an o ring failure and then it will be time to open things up for repair. I’ll get a drop into the fitting every so often and leave it at that.

Thanks for all of the replies and advice. Much appreciated.

Tony

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