Re: Practical ballistics: 77smk vs 75otm ??
The SMKs are OTMs.
SMK stands for Sierra (the company) Match King (the product label)
OTM stands for Open Tip Match, a way of forming bullets where the last operation is the compression (forming) of the metals near the tip. The bullets are pushed out of the dies with a point in the (front) tip of the bullet (the open part).