Durby
Member
Loading for a 338 win mag, attempting to load a long range target round with 250 grain Sierra Matchkings. I have loaded a few different hunting rounds, including a 225 grain Hornaday Interbond that shoots 3 shot groups .350" center to center, so I know the gun is capable of decent accuracy.
I get all sorts of different advice on where to seat the bullet. Some people suggest close to the rifling (.010" off), some people suggest kissing the lands, and some others say that bullet is actually designed to have some jump and to seat it further away from the lands. So which way is the bullet designed to be loaded? Magazine length is long enough for any of the above.
Also, some people have advised me not too even bother shooting it at 100 yards, saying the bullet takes so long to stabilize that i need to shoot it at least at 200 yards. I plan on shooting this gun at 600 yrds plus, but dont have good access to a long range at the moment. Any input on how 100 yard groups will compare to 2 or 300 yard groups would be great.
I get all sorts of different advice on where to seat the bullet. Some people suggest close to the rifling (.010" off), some people suggest kissing the lands, and some others say that bullet is actually designed to have some jump and to seat it further away from the lands. So which way is the bullet designed to be loaded? Magazine length is long enough for any of the above.
Also, some people have advised me not too even bother shooting it at 100 yards, saying the bullet takes so long to stabilize that i need to shoot it at least at 200 yards. I plan on shooting this gun at 600 yrds plus, but dont have good access to a long range at the moment. Any input on how 100 yard groups will compare to 2 or 300 yard groups would be great.