FX First shots with Hybrid Slugs...

[BG3]

Now that I have a compressor, I can finally start shooting without trying to conserve air. I was doing my best to make the initial fill from SPAW, last until the compressor arrived. I managed to shoot one mag of the FX 18.1s and two mags of the Atomic 15.9s. That took me from ~ 235 to 170 bar.

After my first fill from the compressor, I wanted to try the .22 Hybrid Slugs in the Wildcats mkIII as that's what SPAW tuned the gun for. I was able to shoot four groups of five @ 51 yds. My two best below. My best was my second group. I was impressed with how much flatter the slugs shoot. I got so excited after the first four shots, I pulled the last shot left. My next group I shot high first, then strung four horizontal. I need to spend some time shooting to develop my hold and trigger pull for this gun. Well, and find a better/more consistent position to shoot from.

Those 20 shots took me from 232 to 175 bar. The tune from SPAW is 1st reg 150 bar, 2nd reg 110 bar, Hammer spring 7, sending .22 Hybrids at 905 fps.

Surprisingly, my zero for the Atomics worked for the Hybrids. I didn't change anything and getting similar groups from both. Atomics being a fractionally larger group.

I feel like I should be getting a lot more shots per fill with the bottle. I've read and watched videos about a balanced tune. I'm guessing the HS on 7 is spending a lot of air. I know I need to get a chrono. But, wouldn't it be more efficient to tune to gun to get the same results at a lower HS setting. Maybe 3-4. Then I could adjust up or down if needed.

I don't plan to mess with the 1st reg but, how can you read the pressure for it? Or, is that set from the factory?

Thanks in advance!

 

[N2 Shooter]

I'm a huge Hybrid Slug fan. They fly very accurately out of my Maverick VP .30cal, and they have great terminal performance on game.

The way you set the first regulator is a bit complex. Take a look at this video, on how to do it.

 

[starlingassn]

also a fan of the fx hybrids,
running them at 990fps out of my uragan 2,
the birds just explode hahahahahaaaa


but in all seriousness......
any gun prefers to tuned in a balance if you will.

to find your tune you will need a chrono.

when you get one,
keep turning up your power wheel (hammer spring)
till velocity stops climbing,
(probably have to adjust the hammer spring internally)
this will show you the peak velocity of the current reg setting,
then back off the power wheel/hammer till velocity drops around 20-30fps,
nice and simple

and if your velocity isnt where you want it when you arrive at that point,
adjust your reg accordingly,
and repeat the above process.

 

[BG3]

Thanks for the video @N2 Shooter and the tips, @starlingassn . I guess my first question is, shouldn't I be getting more than 54 pellets or 20 Hybrids from a full bottle.

I know I didn't shoot all the way down to the reg setting of 150, but close. I used about 60 bar in both scenarios. That leads to my second question for clarity: Am I limited by the 1st reg @ 150 or the 2nd reg at 110?

In my mind, I should still have enough pressure to shoot down to 110. But, will the first reg still work properly once the bottle pressure is below 150?

 

[N2 Shooter]

Thanks for the video @N2 Shooter and the tips, @starlingassn . I guess my first question is, shouldn't I be getting more than 54 pellets or 20 Hybrids from a full bottle.

I know I didn't shoot all the way down to the reg setting of 150, but close. I used about 60 bar in both scenarios. That leads to my second question for clarity: Am I limited by the 1st reg @ 150 or the 2nd reg at 110?

In my mind, I should still have enough pressure to shoot down to 110. But, will the first reg still work properly once the bottle pressure is below 150?

When the bottle pressure is below the first reg, then the first reg is no longer in the equation, and you are working purely off of the second reg. When this happens, you are not in a worse area, as there is no need for the first regulator anymore. You can shoot until you approach your second regs setting and still be regulated. It seems you may be a tad high on your first regulator. I find better stability with around 25 bar delta between regs.

 

[BG3]

When the bottle pressure is below the first reg, then the first reg is no longer in the equation, and you are working purely off of the second reg. When this happens, you are not in a worse area, as there is no need for the first regulator anymore. You can shoot until you approach your second regs setting and still be regulated. It seems you may be a tad high on your first regulator. I find better stability with around 25 bar delta between regs.

Thanks @N2 Shooter , that makes sense. Matt mentioned around 30 bar delta in the video and I've seen/heard that range mentioned a few times. Sounds like I need to figure out which Chrono to get...

 

[starlingassn]

to your first question........maybe.

what barrel length/bottle size do you have?

a compact with a smaller bottle/shorter barrel will have to push a little harder to get the speeds of a longer barrel,
and with a smaller bottle that will cut into your shot count.


and yes,
you can shoot down to the second reg pressure.

 

[18.13]

For those of you who like the Hybrids have you tried them directly from the maker
https://www.rmrbullets.com/product-category/airgun/

 

[BG3]

to your first question........maybe.

what barrel length/bottle size do you have?

a compact with a smaller bottle/shorter barrel will have to push a little harder to get the speeds of a longer barrel,
and with a smaller bottle that will cut into your shot count.


and yes,
you can shoot down to the second reg pressure.

It's the BT VP version. So, 400 cc Al bottle & 600mm barrel.

So, with clarity I can shoot down to the 2nd reg, that would be at least another 60 bar. So, I should see about double my initial numbers. ~100+ pellets and 40+ hybrids.

 

[starlingassn]

how would shooting slugs cut your shot count in half?

 

[BG3]

how would shooting slugs cut your shot count in half?

Well, that's what my brain has been trying to figure out. The air charge should be the air charge. The gun doesn't know what projectile is in the chamber...

I haven't changed anything, so in my mind, the count should be the same. But, that's not what I experienced.

 

[starlingassn]

Well, that's what my brain has been trying to figure out. The air charge should be the air charge. The gun doesn't know what projectile is in the chamber...

I haven't changed anything, so in my mind, the count should be the same. But, that's not what I experienced.

unless you were turning down the power wheel to shoot pellets,
and then turning it back up for slugs,
theres no reason you would get 60% less shots with slugs vs pellets.

 

[BG3]

unless you were turning down the power wheel to shoot pellets,
and then turning it back up for slugs,
theres no reason you would get 60% less shots with slugs vs pellets.

I dropped the power wheel back to 4 for one shot on the last mag of Atomics. That's the hole you see to the bottom of the target in the 2nd pic. I was aiming for the target above that one. So, I turned it back to 7. All other shots were taken at the same setting. Hopefully I'll get a chance to shoot through a couple fills back to back and compare, soon. Right now, I just have the numbers in the OP.

 

[BG3]

Here's where I am exactly with the Hybrids. I've shot 23, 15 in the mag. Bottle pressure currently just above 180. So, I clearly misread the gauge by a tick mark earlier. So, 232 - 182 = 50 bar for 23 shots, or 2.17 bar/shot. That still puts me short of the pellet count for some reason.

I went back to the pic I took when I opened the box. The gun was @ 240 bar on arrival. So, that's 70 bar for 54 pellets= 1.29 bar/shot.