Trying lighter pellets fac

[Dervburner 2,549]

I’ve been using jsb 18 grain in my fac impact for a while, and they’re very good. But just out of interest, I thought I’d try some 13.4 grain jsb exact rs. Only tried them at 30 yards for an idea of accuracy at different speeds. Well, they’re ok at 800, 850 and even 900fps, but somewhere between 900 and 980ish they look like they’re starting to lose the plot. I tried them at 1026fps but didn’t bother turning the power up any more than that, as accuracy was starting to suffer and they wouldn’t be subsonic either. Interestingly, even at 1026fps muzzle velocity they didn’t penetrate through the 3/4” hardwood boards at 30 yards. They just buried in and flattened.

[philpot 4,984]

I used RS with great success in sub12 and tried them once in my old Rapid .22 fac but in all honesty the AA Field Heavy was just sooooo good, I didn't bother any further however when my Wildcat arrives in a couple of weeks, I intend trying RS again with the power turned down as low as it goes but run AAFH at full power.  Well thats idea in my head, might be viable or not, we will see.

Phil

[Dervburner 2,549]

8 hours ago, philpot said:

I used RS with great success in sub12 and tried them once in my old Rapid .22 fac but in all honesty the AA Field Heavy was just sooooo good, I didn't bother any further however when my Wildcat arrives in a couple of weeks, I intend trying RS again with the power turned down as low as it goes but run AAFH at full power.  Well thats idea in my head, might be viable or not, we will see.

Phil

That’s my idea too Phil. Like you, I find the 16 grain jsb excellent, and the 18 grain even better at higher output. I don’t think they could be beaten in my impact. H&N slugs are good as well, but not always necessary in my opinion. At 24ft lbs though, the RS look to have potential

[philpot 4,984]

On 16/06/2021 at 08:31, Dervburner said:

That’s my idea too Phil. Like you, I find the 16 grain jsb excellent, and the 18 grain even better at higher output. I don’t think they could be beaten in my impact. H&N slugs are good as well, but not always necessary in my opinion. At 24ft lbs though, the RS look to have potential

It would be worth testing with the power dropping a little as a comparison.

Phil

[villaman 9,983]

Personally I think 18 gr are the best weight pellet in .22 FAC . If using lighter pellet at 800 FPS , then may as well use .177 

[Dervburner 2,549]

1 hour ago, villaman said:

Personally I think 18 gr are the best weight pellet in .22 FAC . If using lighter pellet at 800 FPS , then may as well use .177 

I see your point vm, but these rs pellets seem to work well at 900fps and will have better knock down power than a 12ft lb .177...they would be good for rookery shooting for example. Overall though, I agree that for general use the 18 grain are a better all round choice. The rs at 24ft lbs offer and in between option if required, turn the power up and the 18’s come into their own

[Kalibrgun 931]

When do the 18 grain air arms start going loopy ? Have you tried the monster redesigned 25.39 ? 

[Dervburner 2,549]

27 minutes ago, Kalibrgun said:

When do the 18 grain air arms start going loopy ? Have you tried the monster redesigned 25.39 ? 

I’ve had them up to around 1000fps/40ft lbs and they’re ok, can’t see them doing well much faster than that. I’ve never tried the redesigned monsters but I have some of the older ones. I’ve never pushed them hard but I’d expect them to be ok up to 55ft lb or a bit more maybe?

[Kalibrgun 931]

1 hour ago, Dervburner said:

I’ve had them up to around 1000fps/40ft lbs and they’re ok, can’t see them doing well much faster than that. I’ve never tried the redesigned monsters but I have some of the older ones. I’ve never pushed them hard but I’d expect them to be ok up to 55ft lb or a bit more maybe?

That's good to know i always thought around 930/940 was pushing it with them. We've played with the redesigned up to 1090 and are spot on around 67 anything from 40+ the redesigned seem to stay stable. They shot better than fx hybrids out of the same rifle and the knockouts were useless