02-02-2012, 12:12 AM
Well, Tools has tried the 129 I.B.. ( I made some up at 110-115 gr.- A 110-It's 1/32 less in length than a 120 nos. BT., but with a longer tail- to reduce bearing surface.) He has those now to test., Bill A. mentioned to me that the 105-115 grn. units are best for the Grendel. The 110 IB can reach 2700 with IMR 8208., from a 20"bbl. I like this bullet-this wt. It's cool. Less lead lost, than the Accubond.,, or probably any other lead core unit.