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Lead free bullets for the .300 Winchester Magnum

Fox Classic Hunter in the .300 Win Mag, and why high velocity changes what you should expect from a monolithic.

Last updated 28 July 2026

The .300 Winchester Magnum is more cartridge than most British deer stalking requires, but it has a following on open hill and for those who want maximum reach. It fires the same .308 inch bullet as the .308 Winchester.

Which weight

The 165 grain is the sensible pairing. If you have chosen a magnum for reach, the highest-BC .30 calibre bullet in the range at 0.359 is what makes use of it, and the extra mass suits the largest quarry. The 150 grain works well too and shoots flatter still.

The 130 grain is a peculiar combination with a magnum case — very fast indeed, but with the lowest BC in the range it bleeds that speed quickly, which rather defeats the purpose.

What high velocity changes

Expansion at both ends of the range
Magnum velocity means the bullet is still travelling fast enough to expand reliably at ranges where a .308 Winchester load would be marginal. At close range the same velocity produces vigorous expansion — worth bearing in mind for carcass damage on smaller deer.

This is one case where a monolithic's construction is a distinct advantage: a bullet that holds together copes with high impact velocity far better than a fragmenting lead-core bullet, which can come apart on a close shoulder shot.

Twist rate and capacity

Standard 1:10 twist, long action, and a large case — none of the usual monolithic constraints apply with any force here.

We do not publish load data
Velocities here are approximate and for orientation only. Always work from current published data for your cartridge, bullet weight and powder, and work up from the starting charge. See reloading Fox Classic Hunter.
What Fox bullet suits a .300 Win Mag?

The 165 grain. It has the highest ballistic coefficient of the .30 calibre weights and the mass to suit the largest quarry, which is what a magnum case is for.

Do monolithic bullets cope with magnum velocities?

They generally cope better than fragmenting lead-core bullets, which can come apart at high impact velocity. A bullet that holds together is an advantage in a fast cartridge.

Oxon Deer stocks the full Fox Classic Hunter range in 6mm, 6.5mm, .270 and .308, in boxes of 50. Browse the shop.