Sig Sauer Marksman Elite ammunition in .300 Winchester Magnum (brand part no. E3WMM1-20) is built for competitive shooters who need every edge long-range accuracy can offer. Sig Sauer manufactures this load to consistent tolerances, so every box performs the same as the last. At the heart of this load is the 190 gr bullet with an Open Tip Match (OTM) design, matched to the .300 Winchester Magnum platform shooters already run. In our rifle ammunition lineup, this is the Sig Sauer load built for that job.

Key Specifications

• The chambering is .300 Winchester Magnum, the standard chambering for this discipline.
• The bullet weighs 190 gr, sized for the terminal performance this load is built around.
• The projectile is an Open Tip Match (OTM) design, consistent enough for the accuracy this discipline demands.
• The case is Brass, standing up to repeated firing and easy extraction.
• Each box holds 20 rounds, a practical quantity for a solid range session without restocking mid-way.
• Cases ship 25 boxes to a case, letting range regulars order in volume without repeat checkout.
• Cost works out to about $2.50 per round, a reasonable cost for this level of quality.
• The box ships at approximately 1.60 lbs, useful for budgeting freight if you’re ordering by the case.
• This is a centerfire cartridge, ignited by a replaceable primer rather than a rimfire priming ring.
• The open tip match bullet is built purely for accuracy, not expansion, giving long-range shooters a repeatable, high-BC option.
• SIG builds Marksman Elite on match-grade brass and consistent propellant charges for the round-to-round uniformity long-range accuracy demands.

Frequently Asked Questions

Is this bullet built for hunting or precision accuracy? This is a match-grade bullet built purely for accuracy rather than expansion, a target and long-range precision load in .300 Winchester Magnum.

How many rounds come in a box? Each box holds 20 rounds of .300 Winchester Magnum.

Can I order this by the case? Yes, this load ships 25 boxes to a case for shooters who want to order in bulk.

Buy the Sig Sauer Marksman Elite .300 Winchester Magnum 190 gr Open Tip Match, 20-Round Box

Whether it’s a weekend at the range or opening morning, this is the load that shows up and does its job. Order from our Lubbock, Texas gun shop and it ships fast to your door.