I would use the SilverTips - IF the tip of the bullet was cut off and the end hollow pointed with a center-drill, easily done on a little lathe. Stop the tail-stock feed when the forward angle on the center-drill touches the jacket - then every one will be exactly (within reason) the same weight. This worked for me on the 270 RN's I tested in my .375Win. M94. The bullet smashed the left top of the leg bone, angled forward into and stopped in the paunch. It was a bad shot by me, offhand at about 100yards, maybe 90, aiming for a centre shot to go right up the spine. The moose went right down at the shot but got up and buggered off with the cow. About 400yards later, he was moving very slowly, limping & I sacked him with the 220gr. through the 3rd rib and up through the right lung and blade. The 220's do work and deserve a test.

The weight should come out at 280 or so, grains and at 2,000fps would most likely work perfectly.

The 270gr. RN was usually thought to be tougher than the 300gr. RN Hornady.

In that rifle, if using decent brass, I do not believe you are not restricted to CIP or SAAMI standards for that ctg.