Another 20 VT fanboy here great cartridge that is soooo easy to load for .
Not sure how many have been down the tube of mine maybe 2500-3000 as my kids just love using it.
I had mine built on an over priced overrated Sako A1 222 I bought for well cheap of a bloke from Orange
The only thing I regret with mine is the fact it is a Sporter as a bit more weight makes poking holes in things at 300m plus a bit easier.
It surprises me that apart from Cooper no factory offers one as a standard chambering.