Lyman's .45 ACP case gauge ensures proper headspace dimensions for safe, reliable reloading. Simply insert your case to verify it stays within maximum and minimum allowable limits.
Reloading ammunition demands precision. The Lyman Case Head Space Gauge is an essential tool for anyone serious about producing safe, reliable ammunition.
Proper headspace is fundamental to safe ammunition. Cases with excessive headspace can cause dangerous pressure spikes, premature firing pin wear, and accuracy problems. This gauge eliminates guesswork by providing a quick, visual check of your cases before loading.
Simply insert your case into the gauge. The design immediately shows whether your case falls within acceptable dimensions or exceeds maximum allowable headspace. Any case that exceeds the maximum should be destroyed immediately—this gauge identifies those problem cases before they become safety hazards.
Whether you're a seasoned reloader or new to the craft, this gauge is an inexpensive insurance policy. It takes seconds to use and can prevent dangerous ammunition from ever reaching your firearm. Quality reloading starts with quality cases—make sure yours measure up.