Anyone using a .25 spring powered rifle

[manthing]

Ultrastu, are you comparing a 177 wad cutter to a 25 wad cutter in the above analysis matey?

[Stonepark]

1 hour ago, Ultrastu said:

I hate to disagree with you but your completely  wrong .your facts are upside down .and you have been following old wives tales ..there is no way on earth a .177 wadcutter penetrates more in any medium  than any .25 cal pellet .

Go shoot some stuff .owt you want from gel to potatoes.clay or books ..you will see the low bc pellet stops very quickly against the heavy .25 cal .

The frontal sectional area is only a small part of the equation  and doesnt override the more significant bc.of the pellet 

That is why I am comparing apples to apples (H&N Barracuda Extreme in 177 and 25), both are low bc wadcutters of the same design from the same manufacturer.

Unfortunately, I gave up my 177 a number of years ago and so can't do a 177/25 comparison but could do a 22/25 comparison in FTT or Extremes - will see if I can set that up in next week.

In the meantime, run the numbers through Chairgun and they will confirm - I use the published figures off the H&N website to confirm for Barracuda Extremes, Hornets and FTT - all give the same result - 177 version of the pellet design has greater penetration for same starting energy.

 

[Guest]

To add to the mix, my 177 passes through most quarry (not rabbits). So the 177 tends to pass through before it gets a chance to dump its energy. The 'effective energy dump' must be less than a 22 which stays inside a quarry (all the energy has been expended).