hand load right? Depending on the bore of your rifle, you may get away with a 5/16" rod, but more than likely will need a 7mm one.
If you are using spitzer rounds and are concerned about the projectile "tipping" in the bore and perhaps jambing then get a sabot plug machined. I've done this here in my shop for a few people already with this problem but a bullet further down the bore. The "sabot" is just a 2" long slug that is machined slightly smaller than the bore, and counterbored for the projectile tip to fit into it. The sabot is then used to tap the projectile out by the method above. The counterbore in the sabot prevents the projectile from tipping and jambing in the bore. Should you decide you need one and cant source locally, contact me and I can machine it for you and mail it out.