Interesting Zero testing session

[RobF]

If that’s 25yds then something is very wrong, let alone the trend in POI shift.

[junglie]

Were you testing a new pellet ?

[angrybear]

Were you testing a new pellet ?

No, resetting the power as it was only doing 7.7ftlb the other day.

[angrybear]

If that’s 25yds then something is very wrong, let alone the trend in POI shift.

Why do you say that ?

Sorry it should read 10-15 seconds for each shot not between
'cock, aim, shoot, check chrono' for each shot, about 2 mins from loading the full mag to removing it empty.

[Jesim1]

Why do you say that ?

TBF it's not the tightest groups I've seen, given it's a .25 I'd still be looking for a 1p cloverleaf even if an odd sideways drift with conditions

[angrybear]

TBF it's not the tightest groups I've seen, given it's a .25 I'd still be looking for a 1p cloverleaf even if an odd sideways drift with conditions

True enough, but I was trying more to replicate a fairly rapid fire ratting situation than trying to put them through the same hole.

[angrybear]

OK, Well having been rumbled straight off that all is not well , across the chrono the average by magazine.

1 = 9.22 ftlb, 2 = 9.70 ftlb, 3 = 10.05 ftlb, 4 = 10.39 ftlb, 5 = 10.69 ftlb, 6 = 10.91 ftlb, 7 = 11.30 ftlb, 8 = 11.35 ftlb, 9 = 11.50 ftlb, 10 = 11.57 ftlb

outright minimum 8.90 ftlb, outright maximum 11.79ftlb (2.89ftlb spread)

each individual magazine was actually pretty consistent, every one the velocity spread was single figure fps, 9fps to 3fps across the 8 shots

Fill pressure - start 230bar, after mag 5 180bar, end 125bar.

Oh & just to make it really interesting 7 mags were FTT 20gn, 3 mags at random were JSB 25.4gn

[Jesim1]

It just didn't fit your style, it was too shabby, something was up, and now you can "zero" in on it and get it sorted as I'm sure you will end up with one hole groups once the issues are identified. It could be a combo of poor pellets or a fault with the gun somewhere - a probe seal would be the grail fault