1)yes
2)yes
3)sort of
4)yes
5)berger 105gr and sierra 100gr pro hunter is what I use
for ranges of 300-600 the dasher probably has the most records its where it starts to shine
rechambering a br to dasher is a fairly simple job, your smith should knock an inch off each end and start again, but it should be done before the barrel is shot out
once its dead its dead, the reason to take an inch off the muzzle is to get rid of the fish mouthing and the reason to take an inch off the chamber is to get a fresh start
the dasher is very easy to reload for and super accurate
powder choice is adi 2208, br4 primer, and say the berger 105gr bullet, 1 in 8" twist
here is a write up on Peter Van Meurs who is a dasher fanatic/benchrest shooter/gun smith and still holds records at eagle park little river using the dasher
http://www.500mflyshooter.com.au/index. ... van-meurs/you would not be disappointed with either
this is mine
“If you do not read the newspapers you are uninformed. If you do read the newspapers you are misinformed”. Mark Twain