Back when anything bonded was unobtainium (at least for me) I worked up a load for the 143 gr. ELD-X using 41.7 gr. H4350.
Afterwards, the first bonded bullet I got my hands on was the 143 gr. BondStrike, which I simply backed off the existing load just a tad and eventually discovered it liked the same 41.7 gr H4350 charge but seated just a little farther out.
Happy Camper.
