10 - 15 yards. go with a 12 ga.
A slug will stop a boar no problem.
Or, go with .458 SOCOM upper. Cost is $600
hits with nearly the same power as a 308 up to 100 yards.
Although, ammo is expensive.
Did you try looking at rock river?
Their LAR-8 still $1250+
I think if you were to wait 2 more years, the prices would be sub $1K
As every manufacture is getting more requests to build in .308
I just spent $3K on a POF 308 20" for hogs.
"When the situation gets too hot, put Gloves on"
"If the gun is cold to the touch, put Gloves on" -RustyShackleford101