.25 Slugs- Impact 700mm

[zan89]

Hi,

Yesterday i was playing with my new slug barrel 700mm on my impact MK2 with power plenum.

I have slugs NSA 34gn DB, 36gn DB and 39gn flat. I was shooting them at around 940fp and probably less(my chrony stop reading speeds because of bad light) at 50m. I got got groups from 1,5-3"...horrible.

I also tried shoot heavy jsb and kings 25gn they all shoot one hole. I tried probably everything and couldnt make decent group at 50m. Was slug to fast? Maybe DB slugs wasnt best choice?

I dont know. Everyone seem to find sweet spot with Nsa.

Regards,

Zan

 

[lancehenley1]

Slug liner or pellet liner?

 

[zan89]

Slug liner.

I got those slugs from year and a half ago, now i see i canot get anymore those with DB. So maybe i should buy new ones and try again.

 

[DanielL]

What weight slug? What diameter?

 

[cfs916]

The slug liners are kind of picky. Every liner isn’t the same. Once u find the right slug it’ll shoot great. 

 

[biohazardman]

Did you tune the gun? Here are a couple tuning vids there are plenty out there these days.

https://duckduckgo.com/?t=ffab&q=fx+impact+slugs+harmonic+tune&atb=v180-1&ia=videos&iax=videos&iai=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DbiIg0iiZjFU



https://www.youtube.com/watch?v=KDvuMwjwk9M



I shoot the 36.2 gr NSA HP slugs with my .25 Gen1 impact with Michal's plenum and 700 slug liner at 920-980fps. I get excellent MOA groups at 100 yards and plink spray paint cans at 200 yards. It needs to be tuned correctly to get the accuracy though. Have shot the NSA 33.5 HP slugs at velocities in the 740- 960fps range with great accuracy also. The .250slugs seemed to shoot best for me.

The 34gr Varmint Knocker slugs did as well as the NSA.



Since you live far from the US of A There are other slugs out there that perform very well also just look around. Looks like the JSB Knockout slugs shoot well in the Impact slug liners as well.



https://www.youtube.com/watch?v=LkKVoLSO59k

 

[zan89]

Yes but not yet available in .25 cal.

I tuned the gun at diffirent speeds, i know how to do it. But with those slugs i didnt had luck. I need to get flat base not dish base.

 

[biohazardman]

Sorry with the video and all I thought they were out and about already. There are actually quite a few people making slugs and I expect someone near you would be making something that would werq OK.

I found that the same tune I used for the NSA 33.5 HP slugs werqed very well for the JSB King heavy 33.95gr pellets also. 

I wish you luck in your quest for a decent slug for your Impact. 

 

[zan89]

Thanks biohazard.



Does anyone makes swaged slugs in EU and will to sell me some?

 

[biohazardman]

Can you get hold of any H&N slugs I saw a couple vids that said they do well in the FX barrels.

 

[Bask]

Here slugs from UK: 

https://www.prohunterswaging.co.uk/

 

[Bask]

I think h+n slugs are only in .22

 

[villaman]

Here slugs from UK: 

https://www.prohunterswaging.co.uk/

Tried them is 5 different impacts at different settings and with slug, pellet liners , but would not work and £30 per hundred 

FX have just come out with .25 slugs and should be in Europe very , very soon 

 

[zan89]

I've checked those prohunters, but price.. almost same as shooting with my 6,5CM if counting shiping together to allready huge price. For hunting maybe yes, but for fun shooting as i do, 200 shots per day that price is to much.

 

[72vega]

I spent hundreds of dollars on .25 slugs and never got them to shoot. Finally gave up and switched to .22 for more diameter choices and have had good luck. IMO there just to tight in the liner and foul badly.

 

[lancehenley1]

I am shooting the flat based 34 grain slugs in my .25 impact. They are shooting well at 25 yards. Haven't been able to shoot them at longer distance yet. I have a slug liner.

 

[Bob_O]

The dish base weren't accurate in my 700mm slug liner either. Flat base slugs were super accurate.

Definitely do harmonic tuning, its worth the time.

Varmint Knockers slugs should perform very well if you do your part. 920 to 940fps is what I had excellent results with.

 

[8thman]

The nsa 36.2 slugs work the best for me and very easy to tune @900-910fps on max , and still great down to 860fps. I have not had any luck with dish based and not very well with lighter slugs. Hope that helps