Airgun Technologies Testing slugs with the VULCAN 3 HP .30

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grouch-o

grouch-o

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Mar 5, 2024
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here's 6 5-shot groups on 50m with the VULCAN 3 HP .30 with one fill and factory reg and HS settings from a bench with a cheap bipod and no back-bag.
chronograph numbers in the pictures below.

to my surprize, the best group (but only by a mm) was the 3rd with the super cheap low quality hand-knurled KINGPB-82 brand 63gr slugs i got form a special offer at Krale. (i also adjusted the scope for this group, based on the results of the 2 previous groups.)

i wanted to find out how the lighter 54gr vs. the 63gr and 68gr are, since i am looking for a slug mold. i would very much like to try out the

NOE 300-68-FN-BI3 4 Cavity RG4 BT slugs and get one of the molds, but they are sold out. (looking for one in the classifieds!) i think they will be the better choice for long distances from what i've read here.​


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grouch-o said:
here's 6 5-shot groups on 50m with the VULCAN 3 HP .30 with one fill and factory reg and HS settings from a bench with a cheap bipod and no back-bag.
chronograph numbers in the pictures below.

to my surprize, the best group (but only by a mm) was the 3rd with the super cheap low quality hand-knurled KINGPB-82 brand 63gr slugs i got form a special offer at Krale. (i also adjusted the scope for this group, based on the results of the 2 previous groups.)

i wanted to find out how the lighter 54gr vs. the 63gr and 68gr are, since i am looking for a slug mold. i would very much like to try out the

NOE 300-68-FN-BI3 4 Cavity RG4 BT slugs and get one of the molds, but they are sold out. (looking for one in the classifieds!) i think they will be the better choice for long distances from what i've read here.​


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Have you slugged your barrel yet? None of these slugs are .3063 which is what these AGT 30 barrels nomally prefer. AVS sells them and they are by far the most accurate for this gun
 
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JaceSpace1369 said:
Have you slugged your barrel yet? None of these slugs are .3063 which is what these AGT 30 barrels nomally prefer. AVS sells them and they are by far the most accurate for this gun
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no, i have not. do you mean to measure the actual diameter? can't do that since i do not have a micrometer.

thank you, i know about the .3063 AVS slugs, but i am in the euro sector and they are hard to get here. also i want to to cast my own for several reasons.
 
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grouch-o said:
no, i have not. do you mean to measure the actual diameter? can't do that since i do not have a micrometer.

thank you, i know about the .3063 AVS slugs, but i am in the euro sector and they are hard to get here. also i want to to cast my own for several reasons.
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Well a set lf digital steel calipers aren't priced too badly, and it's better than buying different kinds of ammo. If you can find a way to get a bag of his ammo shipped to you so you can see what you would need would likely help out a lot.
 
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My (1/23, Krale) V3 .30 (non-HP) found good AVS .3063 accuracy, but excessive force to load. Subsequent cleaning revealed considerable lead shavings, as well. Seeking alternative, purchased ZAN's Slug Assortment, 45.5 to 68 grain, plus, ZAN's .301 slugs in 51 and 61 grain. ZAN's 54 and 59 grain were most accurate. Subsequent testing of Wildman, Javelin and NSA slugs, in 59-62 grain range, found NSA .300 61.5 grain a top performer in both V3 and U2. WM
 
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grouch-o said:
no, i have not. do you mean to measure the actual diameter? can't do that since i do not have a micrometer.

thank you, i know about the .3063 AVS slugs, but i am in the euro sector and they are hard to get here. also i want to to cast my own for several reasons.
Click to expand...
Slug it and send it to me. I will measure it for you. I'm OCD with these types of measurements. 😅
 
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photo_2025-01-11 00.29.01.jpeg

shooting at -3 Celsius. took a while for the gun to aclimate, the muzzlespeed differences were crazy, in the beginning. factory regulator settings, still.
best group on 50m with ZAN 63gr .300. the size of the slugs is sub-optimal, but much better than the H&N HP2 54gr in .301, those were all over the place.
chronograph numbers for two mags of ZANs starting with a 300bar tank fill below.

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Newer Vulcans come with CZ .300 barrels, not the Alpha Precision (.3063) barrels that were originally on them in early production units.
I have a the non HP .30 and it likes ammo on the heavy end of the spectrum for .30 in the 60-68 grain range. Right now I am getting the best accuracy from Patriot Javelin .301 64 grain.
Oddly enough it also shoots the 44.5 FX hybrids well. I think it has something to do with their shape and that they are long enough to stabilize.
It would be interesting to see the measurements from a slugged barrel though...
I bought 1200 rds of the patriot Javelin .301 64 grain when Utah had them on sale. They are stupid accurate!
 
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RWC123 said:
Newer Vulcans come with CZ .300 barrels, not the Alpha Precision (.3063) barrels that were originally on them in early production units.
I have a the non HP .30 and it likes ammo on the heavy end of the spectrum for .30 in the 60-68 grain range. Right now I am getting the best accuracy from Patriot Javelin .301 64 grain.
Oddly enough it also shoots the 44.5 FX hybrids well. I think it has something to do with their shape and that they are long enough to stabilize.
It would be interesting to see the measurements from a slugged barrel though...
I bought 1200 rds of the patriot Javelin .301 64 grain when Utah had them on sale. They are stupid accurate!
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May I ask how the new .300 CZ barrels was confirmed.? I am a fan of AGT.
 
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Jaxjax said:
May I ask how the new .300 CZ barrels was confirmed.? I am a fan of AGT.
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Derrick Wall is a service rep for AGT here in the US.
look at his comment #19 in this older thread:

My opinion about Vulcan 3. .30 Cal.

Because of: Price Weight Total length Unparallel accuracy Power Authonomy How it shoulders Functioning of magazines Two magazines included, I just may not figure out a better combination to get a better rifle. Maybe a Daystate would be more esthetically attractive but just that.
www.airgunnation.com www.airgunnation.com

There are other threads you can look through also that mention the newer barrels for the V3's are .300
 
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RWC123 said:
Newer Vulcans come with CZ .300 barrels, not the Alpha Precision (.3063) barrels that were originally on them in early production units.
I have a the non HP .30 and it likes ammo on the heavy end of the spectrum for .30 in the 60-68 grain range. Right now I am getting the best accuracy from Patriot Javelin .301 64 grain.
Oddly enough it also shoots the 44.5 FX hybrids well. I think it has something to do with their shape and that they are long enough to stabilize.
It would be interesting to see the measurements from a slugged barrel though...
I bought 1200 rds of the patriot Javelin .301 64 grain when Utah had them on sale. They are stupid accurate!
Click to expand...
well, mine is what i thought a new VULCAN 3 HP in .30 with a 700er barrel. i got it from Krale in september last year, way before they had listed it, so rather early.
it neither came with new and 'deeper' magazines, nor is the barrel .300cal. as some people here have stated to be the case.
after i have finally 'slugged the barrel, i can confirm it is the .3063cal version.

maybe someone knows, if that is true, from what serial number onwards the new .300 barrels are part of the VULCAN 3 .30cal deal? does anyone have one of those yet?
 
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for the first time i played with the regulator settings and increased the pressure and with no HS adjustment the power was low, but with 2 turns in, i got 173.5 joules. IT WAS VERY LOUD, as in ear-protection required.

also, realized that due to the fact i have installed the barrel a tad bit too much outwards from the reciever, the magazine was a bit loose and wobbly. got to adjust that.
 
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grouch-o said:
well, mine is what i thought a new VULCAN 3 HP in .30 with a 700er barrel. i got it from Krale in september last year, way before they had listed it, so rather early.
it neither came with new and 'deeper' magazines, nor is the barrel .300cal. as some people here have stated to be the case.
after i have finally 'slugged the barrel, i can confirm it is the .3063cal version.

maybe someone knows, if that is true, from what serial number onwards the new .300 barrels are part of the VULCAN 3 .30cal deal? does anyone have one of those yet?
Click to expand...
I bought mine In July from Krale. It did not come with the deeper mags either. You have me curious about the barrel now. I haven't felt compelled to slug the barrel since I found the .301 64 grain Javelins to be so accurate in it. I may have to look further into pushing a slug through it. My question is what would I push through it? The largest size slugs I have are the .301. If I pushed those through an oversized barrel, wouldn't they still come out as .301?
The serial # on my gun is: 2370078
 
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RWC123 said:
I bought mine In July from Krale. It did not come with the deeper mags either. You have me curious about the barrel now. I haven't felt compelled to slug the barrel since I found the .301 64 grain Javelins to be so accurate in it. I may have to look further into pushing a slug through it. My question is what would I push through it? The largest size slugs I have are the .301. If I pushed those through an oversized barrel, wouldn't they still come out as .301?
The serial # on my gun is: 2370078
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if you get good accuracy as it is, i would not bother to take it apart. i mean, that is the beauty of it and you should be happy as it is.

i used a usual slug that i compressed a tiny bit in a vice, so that it's diameter got oversized. finding something thin and long enough to push through was a challenge too. for my .35 rifle i used my KYUDO arrows, but for this one in .30, i've cut a long rod off an old laundry hanger.

the serial # starts with the year, i believe and mine starts with 24, so should even be newer.

PS:
i figured it is good practice to set and fix the barrel with the magazine in, to find a position in which it is not too tight and not to loose, it is possible to set it so that inserting and ejecting the mag is a haptical pleasure. (i mention this, because i recall, that somewhere in this forum someone complained that the mag fell out when they aimed upwards while reloading, or the like.)
 
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