Oldbloke wrote:Thats why I asked the question. 223 seemed a bit of a stretch.
The video Westy posted and the one i posted both are using .223 rem.
The range would be less than 150 yards, the pigs appear to be bigger in the Aussie video which meant some had to be double tapped and i think there was one near the end which was shot multiple times before it fell, a little cloud appeared just above the shoulder on a couple of shots so perhaps the projectile wasn't suitable,that said a .223 works well on smaller-medium sized pigs at closer ranges.
The shorter barrel on the AR15 clone probably loses some velocity compared to the pump action remington which might not help.
The R22/R44 helicopters are not allowed to be used for government aerial culling in Australia due to their piston engines, the rules state a turbine engine must be used so the R66 would be ok.
We must also use 7.62 and double tap everything, typical of the government to take something that could be cheap and make it more expensive due to excessive regulations.
I prefer to use a .243 for pigs, a GAP-10 chambered in .243 would be great, a friend in the USA has a GAP-10 in .308 it shoots 0.25 MOA with a 20 inch barrel.