What specific press models and primer sizes is the Hornady Primer Punch Part #390034 designed to fit?

This OEM replacement part is specifically engineered for the Hornady Lock-N-Load Classic Single Stage Press on-press priming arm assembly. It is strictly intended for small-pocket primers with a nominal pocket diameter of 0.175 inches or 4.45 millimetres, accommodating both Small Rifle and Small Pistol primer formats.

Can I use this small primer punch if I am transitioning my press to reload large rifle cases?

No, you must never use a small punch or cup to seat large primers, as mismatched tooling can cause improper alignment, damaged primers, or accidental detonation during seating. For cases with large primer pockets featuring a nominal 0.210 inch or 5.33 millimetre diameter, you must switch to the Hornady Large Primer Punch Part #390035 and the corresponding Large Primer Cup Part #390006.

Are there any electrical compliance certifications or SAA/RCM requirements needed for this component in Australia?

No electrical compliance or SAA/RCM certifications are required for the Hornady 390034. It is a passive, solid-machined steel reloading press component weighing approximately 0.01 kg that requires no electrical connection, motors, or external power to operate safely on your reloading bench.

Small Primer Punch - Hornady 390034

The Hornady Primer Punch - Small (Part #390034) is an OEM replacement reloading press component engineered for the Hornady Lock-N-Load Classic Single Stage Press. Made from machined steel and weighing approximately 0.01 kg, this non-powered punch drops directly into the on-press priming arm assembly alongside the Hornady Small Primer Cup (#390005) and Cup Spring (#390007). It provides a uniform seating surface to drive small primers squarely and safely into primer pockets measured at a nominal 0.175 in (4.45 mm) diameter, making it essential for replacing deformed punches or setting up a press for small-calibre priming.

Key Features

Factory-Original Fit: Serves as a direct replacement component for the Hornady Lock-N-Load Classic Single Stage Press priming arm, requiring no modifications for installation.
Precision Seating Surface: Machined steel construction delivers a flat face designed to seat boxer-type small primers consistently below flush.
Standard Calibre Setup: Configures on-press priming systems for standard Small Rifle, Small Pistol, and matching small magnum primers.
Mechanical Simplicity: Operates as a purely mechanical press component without springs, motors, or electrical requirements.

Specifications

Brand: Hornady Manufacturing
Part Number: 390034
Material: Machined steel
Unit Weight: Approximately 0.01 kg
Target Pocket Diameter: 0.175 in (4.45 mm)
Press Compatibility: Hornady Lock-N-Load Classic Single Stage Press
Required Assembly Hardware: Hornady Small Primer Cup (#390005) and Cup Spring (#390007)
Supported Primers: Small Rifle, Small Pistol, and small magnum boxer primers

Who is the Hornady Primer Punch - Small for?

Hornady Lock-N-Load Classic Single Stage Press owners — requiring a direct-fit reloading press primer punch to restore factory seating depth across cartridge cases featuring a 0.175 in (4.45 mm) primer pocket diameter.
Handloaders converting press priming systems from large to small primers — needing an authentic replacement punch weighing approximately 0.01 kg to swap out large-priming assemblies for 4.45 mm (0.175 in) small primer configurations.

Less suitable for: Handloaders seating primers into large primer pockets with a nominal 0.210 in (5.33 mm) diameter, such as Large Rifle or Large Pistol calibres, who require a dedicated large primer punch (Part #390035) and large cup assembly, or those using off-press handheld priming tools that rely on proprietary seating pin profiles.

SKU	HN42884LP
Model #	390034
Brand	Hornady
Shipping Weight	1.0000kg

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Hornady 390034 Primer Punch Small Steel Replacement Part

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