I have read on this forum plenty of interest in the 284 Shehane. I have alot of experience with this caliber so I will save you a ton of time if you are looking at this for a hunting rig. Get yourself a Bartlein 27" (finished length) 2b standard sporter 9 twist 5R groove barrel. Do the build otherwise however you want. If it were me, I would get a McMillan game scout stock and Bighorn action, jewel trigger and do it ADL - no bottom metal (stiffer and saves weight). Use a Nightforce NSX 5.5-22x50 scope with the MOAR- T reticle (super fine reticle)
Load should be 52.3 gr H4350, CCI BR2 primer, Norma 284 brass, Berger 180 Hybrid and seat it 15 thou off. Neck turning a plus to .312 loaded neck - in any event pushed only to 2800 fps. I use Widden dies.
Your 10 shot groups at 200 yards should be (like mine) all bullet holes touching each other in 3/4" ball. At 300 yard group is 1 1/2" and fabulous at 1000 yards too! Should save you a ton of testing and $$. It's a really special round for incredible accuracy but not necessarily a speed demon. Plenty of velocity to knock down just about anything in N. America though. Good luck.
Load should be 52.3 gr H4350, CCI BR2 primer, Norma 284 brass, Berger 180 Hybrid and seat it 15 thou off. Neck turning a plus to .312 loaded neck - in any event pushed only to 2800 fps. I use Widden dies.
Your 10 shot groups at 200 yards should be (like mine) all bullet holes touching each other in 3/4" ball. At 300 yard group is 1 1/2" and fabulous at 1000 yards too! Should save you a ton of testing and $$. It's a really special round for incredible accuracy but not necessarily a speed demon. Plenty of velocity to knock down just about anything in N. America though. Good luck.