I purchased Nielsen slugs here in the U.S. and am happy with how they preformed. Diameter is.178 in either 12.5 or 15.0 grains, being pushed @ 900 fps and 850 will group 5/8” and 1” @ 60 yards. I’m thinking this is pretty impressive out of a $199 pcp . The pellet and slug topic is quite interesting vs fps, have had good luck with JSB 10.34 and 13.43 as well as H&N and Crosman if you keep them under 900 fps . The heavier the slug max your power. Thanks for the info you post on RUclips 👍🏻
Its good to always push the envelope. For years ive always understood that 16ftlbs is the sweet spot for .177 tech moves on and those FX barrels are fantastic at stabilising pellets
Thanks for the video, fickle things these .177's at speed. You confirmed my thoughts on the beasts👍. My anschutz barrel on the rapid only likes 10.5 prems, which were good until the quality went to rats sometime ago. I'm getting my rapid converted to smooth twist next week, should be interesting.
Thanks you very much! My Air Venturi Avenger does not come close to matching the repeatability of your FX. I can group the 16.2 pellets at 50 yards at 3/4 of an inch or less. And yes Sir. at 850 to about 920 ft./s they are spot on! Wow! 28 to 30 plus foot pounds in .177 is fantastic! Once again, thank you for your time and money keeping us informed. Much appreciated!
Great analysis, have to say you had overloaded the hammer as your 5 - max speeds were minimal and wider groups suggesting the hammer its maxed so you're pushing out too much air. With the impact its not as common due to the massive adjustability, possibly bringing the valve stop back a bit might have made it all smoother. The speeds, in general, are rather low as 880-920 is usually the bracket for JSB in most barrels and also calibers.🤔
I had to max out the hammer pring to get the velocity up with the reg pressure, after the video I tuned the hammerspring down but the speeds fell away quickly, the gun was sounding sick on power 5 and max, I knew I was pushing her hard but I had to get the speeds, just doesn't make sense to shoot a 177 at a reg pressure of 150bar. I tuned her down to 50 bar and loosened the hammer spring and still got 900fps with 10gr... thus there is a lot of air wasted trying to push for speed. I have spoken to a few FX experts but they have no experience with 177, all their knowledge are with the 22. I am doing one final run with the 177, if I don't see the results I am aiming for... still have a 22 barrel kit I can use. Pity as a spend mega bucks on the 177 setup.
@@AimSmall prob with the fx guys in SA is that they mainly work on .22. As I said in my first post the main prob is the port size which is identical for sub and +12. Thus really not designed to go much past the expected 900 for a pellet. Huma air do a .177 high flow port which I suspect will help a lot as you have actually hit the max airflow capacity and increasing the pressure will have no effect. This is one of the ways they castrate the sub12, the TP for a .22 is smaller that for a .177 so no matter how much the reg goes up you can’t get the power to go up. If you want to test the potential properly fit a high flow port or just work on the theory it’s a flat shooting close range/barn pellet gun and run JSB hades Which are the same as heavies and it will run perfectly at 18-20 ftlb and put the .22 barrel on for the long range/outdoor work. Power is often overrated it the accuracy that counts
Just found you from Airgun 101 and loving what you do!! As a UK shooter at 12ft lb, not sure how much is relevant to my gun, but it is so interesting!!!!! Subscribed :)
According to Ernest Rowe, every time you change barrel length and/or pellet weight then: 1. Set the regulator pressure to 100 2. Put the power dial on MAX 3. Increase HST until velocity stops increasing. 4. Decrease HST until velocity starts decreasing. After, if you don't have the velocity you need then you increase the regulator pressure by 5 Bar and repeat steps 1 to 4 above. You keep doing that until you get the velocity you need. This way you dont end up wasting air, get more shots and ultimately the velocity you wanted. Accuracy also improves because you are only hitting the valve by the minimum amount needed. Over hitting the valve will only end up messing with the barrels harmonics.
I think like Ted said STX or ST don't grip as much at high speeds and short barrels vs a Lothar Walter. Or something it evens out so idk. 🤷 haha that's why we thank you for trial-and-error plus video whaaaat!!!
i've had bad groups with my 35ft/lb .177 impact as well. i removed the liner and pass the pellets and slugs through it and the damage to the projectiles was massive. the choke is very tight and it deforms them badly. also the twist rate is to slow and it turns anything heavy to the right
@@AimSmall when the 600mm liners hit the market i will cut 10cm from the choke side and recrown it to fit the 500mm tube and hope for the best :P.. great informative videos as usual .
@@tromplee6107 I know that FX isn't realy interested in the 177 variant, they started research on better liners and then gave up, they even brought in Hein Froneman a multiple world champion bench rest shooters to assist.. alas they shifted the attention back to the 22 and higher, I am thinking of buying a Walther Lothar barrel and fitting that to the FX...
Isn't part of the issue with increasing spread that diabolo style pellets just aren't made for transonic speeds? At least in my experience when I push diabolos over 270m/s accuracy goes out the window quick, and insulated glass isn't cheap. I shoot a bit of a frankenstein buks in 100m competition, running an 880mm barrel, the longest allowed by the rules and I only use slugs to do so. Twist is about 300mm on that barrel and the slugs are perfectly stable at 330m/s. Slugs like fast twist and don't care as much about transonic speeds. For the 25m indoor competition, slugs aren't allowed. The pellet has to be diabolo shaped. I run a 560mm barrel with a 650mm twist. And speeds are way down to about 210m/s. I tried using the 880mm barrel, but the twist rate and speeds are just too high for diabolo pellets.
100% correct, pushing pellets beyond 290m/s and all stability flies out the window, the test in barrel was about speeds, so if you increase speed with barrel length you need less pressure on the reg, making the gun more air efficient and the parts work lighter. The modern slugs love speeds above 300m/s. Happy shooting.
My airguns using Lothar Walther Polygon 69cm barrel n using NSA Slug 15grain can produce 29.48 ft.lbf ... Because the speed I was using it's about 942 fps (on average) n it could group very good at 73 meters (about 12 mm x 3 shots)
My impact also shoot good under -30 13.43 n 16.20 but after 40yd its useless., even the kral jumbo 177 love 16 n 13 grain at hi power the very expensive impact is useless in 177 hi power
There were a couple of speeds where the heavy pellet grouped well but overall they seem very speed fussy, any plans to include .177 slugs in this trial?
@@mitsosHT Wil shout as I am not having great fun with the 177 High Power, I have tuned this gun up and down the ladder 2 times and still can't seem to find the sweet spot.
Hiya bud isn't the bc technically up around the limits at some of the speeds these types of pellets travelling are you going to do a 177 slug test in the same way you've tested the pellets
@@AimSmall yoh I thought my hatsan was powerful at 28 fpe with the 13.43 grain monsters but if you had a 700mm barrel it would be an absolute beast 35fpe is the same power as my friends.22 Daystate Huntsman regal at max power
As much as we all jump onto the wagon to go get your pellets, etc.. This guy airgun, even if it's the same as your fx. Is just not the same, unfortunately. Even with your wheel and valve the same.. springs will probably be different ... there's a sweet spot for everything. That tiny little extra air out the end just makes that pellet or slug distort. For different pellets, not touching those adjustments, and using different pellets ect. With a little change on those adjustments would make that pellet fly the same speed and twice as accurate
I purchased Nielsen slugs here in the U.S. and am happy with how they preformed. Diameter is.178 in either 12.5 or 15.0 grains, being pushed @ 900 fps and 850 will group 5/8” and 1” @ 60 yards. I’m thinking this is pretty impressive out of a $199 pcp . The pellet and slug topic is quite interesting vs fps, have had good luck with JSB 10.34 and 13.43 as well as H&N and Crosman if you keep them under 900 fps . The heavier the slug max your power. Thanks for the info you post on RUclips 👍🏻
What pcp are you using?
Its good to always push the envelope. For years ive always understood that 16ftlbs is the sweet spot for .177 tech moves on and those FX barrels are fantastic at stabilising pellets
Really like the way you do your shot groups takes. Very original way of doing it. 🎯👌
Always enjoy your videos you put a lot of effort and time and i always learn something thanks 😊👍
You do such good experiments well done👍
I cant wait to get home and watch this on my 65 inch TV.......👍💯
Thanks for the video, fickle things these .177's at speed. You confirmed my thoughts on the beasts👍. My anschutz barrel on the rapid only likes 10.5 prems, which were good until the quality went to rats sometime ago. I'm getting my rapid converted to smooth twist next week, should be interesting.
Thanks you very much! My Air Venturi Avenger does not come close to matching the repeatability of your FX. I can group the 16.2 pellets at 50 yards at 3/4 of an inch or less. And yes Sir. at 850 to about 920 ft./s they are spot on! Wow! 28 to 30 plus foot pounds in .177 is fantastic! Once again, thank you for your time and money keeping us informed. Much appreciated!
I can hardly wait until JSB comes out with their slugs in .177!
@@robertrmckerrow1111 They are out, I ordered some.
@@AimSmall I’ll wait till you post a video on them. Then I’ll order. 👍🏼
Excellent detective work here.
Great analysis, have to say you had overloaded the hammer as your 5 - max speeds were minimal and wider groups suggesting the hammer its maxed so you're pushing out too much air. With the impact its not as common due to the massive adjustability, possibly bringing the valve stop back a bit might have made it all smoother. The speeds, in general, are rather low as 880-920 is usually the bracket for JSB in most barrels and also calibers.🤔
I had to max out the hammer pring to get the velocity up with the reg pressure, after the video I tuned the hammerspring down but the speeds fell away quickly, the gun was sounding sick on power 5 and max, I knew I was pushing her hard but I had to get the speeds, just doesn't make sense to shoot a 177 at a reg pressure of 150bar. I tuned her down to 50 bar and loosened the hammer spring and still got 900fps with 10gr... thus there is a lot of air wasted trying to push for speed. I have spoken to a few FX experts but they have no experience with 177, all their knowledge are with the 22. I am doing one final run with the 177, if I don't see the results I am aiming for... still have a 22 barrel kit I can use. Pity as a spend mega bucks on the 177 setup.
@@AimSmall prob with the fx guys in SA is that they mainly work on .22. As I said in my first post the main prob is the port size which is identical for sub and +12. Thus really not designed to go much past the expected 900 for a pellet. Huma air do a .177 high flow port which I suspect will help a lot as you have actually hit the max airflow capacity and increasing the pressure will have no effect. This is one of the ways they castrate the sub12, the TP for a .22 is smaller that for a .177 so no matter how much the reg goes up you can’t get the power to go up. If you want to test the potential properly fit a high flow port or just work on the theory it’s a flat shooting close range/barn pellet gun and run JSB hades Which are the same as heavies and it will run perfectly at 18-20 ftlb and put the .22 barrel on for the long range/outdoor work. Power is often overrated it the accuracy that counts
@@happyhalfwit8862 well said and thank you for the great advice.
Just found you from Airgun 101 and loving what you do!! As a UK shooter at 12ft lb, not sure how much is relevant to my gun, but it is so interesting!!!!! Subscribed :)
There are 12ft.lb specific videos also on the channel, just forthe UK guys and girls. Enjoy and welcome.
According to Ernest Rowe, every time you change barrel length and/or pellet weight then:
1. Set the regulator pressure to 100
2. Put the power dial on MAX
3. Increase HST until velocity stops increasing.
4. Decrease HST until velocity starts decreasing.
After, if you don't have the velocity you need then you increase the regulator pressure by 5 Bar and repeat steps 1 to 4 above. You keep doing that until you get the velocity you need.
This way you dont end up wasting air, get more shots and ultimately the velocity you wanted. Accuracy also improves because you are only hitting the valve by the minimum amount needed. Over hitting the valve will only end up messing with the barrels harmonics.
Great work. My favourite shooting channel.
Great line up again...
Always great information
I think like Ted said STX or ST don't grip as much at high speeds and short barrels vs a Lothar Walter. Or something it evens out so idk. 🤷 haha that's why we thank you for trial-and-error plus video whaaaat!!!
I'd love to custom fit a FX barrel on my P15!!!
Nice video, REALLY interesting on power settings!!
i've had bad groups with my 35ft/lb .177 impact as well. i removed the liner and pass the pellets and slugs through it and the damage to the projectiles was massive. the choke is very tight and it deforms them badly. also the twist rate is to slow and it turns anything heavy to the right
Sincere thanks for this, I had the same effect with heaviser stuff especially the slugs going straight right...
@@AimSmall when the 600mm liners hit the market i will cut 10cm from the choke side and recrown it to fit the 500mm tube and hope for the best :P.. great informative videos as usual .
@@tromplee6107 I know that FX isn't realy interested in the 177 variant, they started research on better liners and then gave up, they even brought in Hein Froneman a multiple world champion bench rest shooters to assist.. alas they shifted the attention back to the 22 and higher, I am thinking of buying a Walther Lothar barrel and fitting that to the FX...
@@AimSmall make sure you get the polygonal without choke
Interesting indeed 👍🏻👍🏻
First comment....guess better to stick to 22 for high power....rock on bro
Isn't part of the issue with increasing spread that diabolo style pellets just aren't made for transonic speeds? At least in my experience when I push diabolos over 270m/s accuracy goes out the window quick, and insulated glass isn't cheap.
I shoot a bit of a frankenstein buks in 100m competition, running an 880mm barrel, the longest allowed by the rules and I only use slugs to do so. Twist is about 300mm on that barrel and the slugs are perfectly stable at 330m/s. Slugs like fast twist and don't care as much about transonic speeds.
For the 25m indoor competition, slugs aren't allowed. The pellet has to be diabolo shaped. I run a 560mm barrel with a 650mm twist. And speeds are way down to about 210m/s. I tried using the 880mm barrel, but the twist rate and speeds are just too high for diabolo pellets.
100% correct, pushing pellets beyond 290m/s and all stability flies out the window, the test in barrel was about speeds, so if you increase speed with barrel length you need less pressure on the reg, making the gun more air efficient and the parts work lighter. The modern slugs love speeds above 300m/s. Happy shooting.
My airguns using Lothar Walther Polygon 69cm barrel n using NSA Slug 15grain can produce 29.48 ft.lbf ... Because the speed I was using it's about 942 fps (on average) n it could group very good at 73 meters (about 12 mm x 3 shots)
Twist rate on that barrel?
The Twist Rate (TR) is 1:17
@@gondezableh4972 Great, it explains the better accuracy with the slugs, the twist rate in the FX is somethng like 1:24.
I think that CROW's would like the 16 grains JSB BEASTS from 600 mm barrel the best !
Whahaha, good suggestion, I might test that theory soon.
Tengo una fx crown 5.5 con barrel de 380 mm y quiero cambiar a uno de 600 mm eso va variar mucho en la precisión??
Haij Gert, JSB has 2 new slugs 10.03 grain & 13,43 Grain. Do you like te test them ?
Now for sale in the Netherlands.
My impact also shoot good under -30 13.43 n 16.20 but after 40yd its useless., even the kral jumbo 177 love 16 n 13 grain at hi power the very expensive impact is useless in 177 hi power
There were a couple of speeds where the heavy pellet grouped well but overall they seem very speed fussy, any plans to include .177 slugs in this trial?
For the 10 grainers the speed is too high in the 500mm barrel as i know they like between 850-920.
100% correct, best results with 10gr was 720fps all the way up to 925fps.
@@AimSmall If you want any help with .177 on high powe just tell me, as is the only caliber that we are allowed to shoot here in Cyprus.
@@mitsosHT Wil shout as I am not having great fun with the 177 High Power, I have tuned this gun up and down the ladder 2 times and still can't seem to find the sweet spot.
Thankyou for contributing on .177 pcp. Will it be applicable to my .177 Aventuri Avenger ?
Yes it should but remember that each barrel is different, I do thing the Avenger has a better barrel than the FX.
@@AimSmall Thankyouso much.
Great video
Can you do a test with the 600mm jsb 16
55 yard
Thank you
Yes, just need to buy some first. lol
Hiya bud isn't the bc technically up around the limits at some of the speeds these types of pellets travelling are you going to do a 177 slug test in the same way you've tested the pellets
I did, but the FX barrel didn't like them at all, I am looking for a barrel i can modify to fit the FX, 14mm diameter with a bit faster twiat rate ...
Coment ke 2 in Indonesia ❤️
the FX compact 300cc 500mm version it yields how many shots at maximum VO with the heaviest lead in the .177?
0 shots at Max everything from 250 bar to 150bar , reg set at 150 bar
Wonder how much your power would increase if you had the 700mm barrel 🤔
On average the extra 10mm added about 25fps so I would guess the 700mm would get it close to 35Fpe.
@@AimSmall yoh I thought my hatsan was powerful at 28 fpe with the 13.43 grain monsters but if you had a 700mm barrel it would be an absolute beast
35fpe is the same power as my friends.22 Daystate Huntsman regal at max power
@@ZimbabweAirguning. Working on it again, dual flow and pinprobe installed...
As much as we all jump onto the wagon to go get your pellets, etc.. This guy airgun, even if it's the same as your fx. Is just not the same, unfortunately. Even with your wheel and valve the same.. springs will probably be different ... there's a sweet spot for everything. That tiny little extra air out the end just makes that pellet or slug distort. For different pellets, not touching those adjustments, and using different pellets ect. With a little change on those adjustments would make that pellet fly the same speed and twice as accurate
Sir ur scope nema
Did u try the beasts at 50 m
In another video yes
Lower you reg
🇸🇦🇸🇦🇸🇦🇸🇦🤗🤗🤗🤗🤗