Defiants

[Schnakey]

I used the old SN2s and PCP2s and past 45 yards they corkscrewed majorly, the new ones (name escapes me) seem a LOT better.

[longman]

im useing the FAC rated Defiants (18gr) out to 100yrds with my Ds mk4 @ 32ft/lbs and they fly lovely and flat and hit quite hard as well. just wish i could get some
in .25!!!

[Adam77K]

Consensus among many FT/HFT shooters (if there is such a thing ) seems to be that they don't group well beyond 35-40 yds in most 12 ft.lbsf rifles. The speculation is that it's to do with rifling twist rates. Launched at the lower spin speeds of 12 ft.lbsf, pellets start to rely on drag stabilisation at longer ranges so diabolos win out, whereas the bullet shaped pellets start to wobble. Grouping and wind performance then go out of the window.

With FAC they spin faster so they stay stable for much longer.

As I say this is speculation but seems to fit most accounts I've read. FAC: yes, sub 12ft.lbsf fine up to 35 yds or so.

[jagxkrs]

Don't shoot FAC but the ones I tried in my sub 12 ft/lb Wolf were bloody rubbish My desert eagle pistol liked em

[ellsworth]

i personally love em

using med head .177 tonight i was turning the bottom of a bean tin into a teabag at 85yrds

they fly fast and hard , ok not tight groupers but they will go through both sides of the tin at that range

sub 12 HW98

ells

[guidodg]

the 16 grainers in .177 are possibly the worst pellet I have ever tried...out of 3 high power airguns the best group ran at 4" at 50m

[Schnakey]

Looking at the comments they seem quite hit and miss. Some seem to find them very accurate, and some find them to group like a shotgun, but with not much inbetween. Very odd. They must be quite rifling fussy I'd guess.