RE: 270
I used the 130 grain Ballistic Tips in my 270 Win. but was not happy with their lack of penetration (often not exiting). I switched tothe 150 Ballistic Tips last year and even though they are very accurate, Iwas not overly pleased. I shot a doe at 125 yards and when I dressed the deer, it appeared the bullet fragmented just after impact.
I switched again to 150 grain Partitions; thePartititons performed beautifully and were also veryaccurate out of my Savage 111. The Partitions are definitley better bullets for hunting in my opinion.
If you want to shoot a Ballistic Tip, use the bonded core Accubonds. The Accubond should hold together better than the Ballistic Tips. However, it's tough to beat the Partitions.
Use IMR-4350, H-4831, RL-22,or IMR-4831. Either of these powders should work well in the 270 Win.