Redding Competition Shell Holder Set - #1 Size

Fine-tuning headspace on your reloading press is where precision separates competition loads from good-enough ammunition. The Redding Competition Shell Holder Set in #1 Size gives you five individually calibrated shellholders, each offset from standard thickness by .002", .004", .006", .008", and .010" respectively. This allows you to dial in headspace in small, measurable increments—critical for shooters chasing sub-minute-of-angle groups or competing in precision rifle disciplines where case-to-chamber fit directly impacts consistency and accuracy.

Each shellholder in this set is clearly marked and finished in black oxide to keep them visually distinct from your standard holders, eliminating guesswork when you're swapping between loads. The set arrives in a six-position storage box with room for your regular #1 shellholder, keeping everything organized and accessible at your bench. For reloaders running tight tolerances—whether you're loading for F-Class, PRS, or long-range hunting where every tenth of a thou matters—this is the kind of tool that turns theory into measurable improvements.

Redding's shellholder sets are built for the reloader who understands that ammunition quality compounds. You're not just buying five pieces of steel; you're buying the ability to replicate that one load that shoots lights-out, then do it again with the same exacting standards. This is the working end of competition-grade reloading.

Key Features

• Five precision-offset shellholders for incremental headspace adjustment
• Offsets of +.002", +.004", +.006", +.008", and +.010" allow fine-tuning beyond standard dimensions
• Black oxide finish for easy identification and distinction from standard holders
• Clearly marked for quick identification during setup and load changes
• Includes six-position storage box to keep the set and standard holder organized

Specifications

Frequently Asked Questions

What is a competition shell holder set and why would I need it?

A competition shell holder set lets you adjust headspace in small, precise increments by swapping between holders of different thicknesses. This is essential for reloaders who need to match case length and headspace specifications exactly—particularly in precision rifle competitions where ammunition consistency directly impacts accuracy. Standard shellholders come in one thickness; this set gives you five, so you can fine-tune without changing cases or modifying your press.

What size cases does the #1 shell holder fit?

The #1 size designation refers to Redding's shellholder sizing system. Refer to Redding's shellholder chart to confirm which cartridges are compatible with #1 holders—the chart will list all cases that fit this size.

Does this set come with a storage box?

Yes. The set includes a six-position storage box, with five positions for the competition holders and one empty space reserved for your standard #1 shellholder, keeping your entire setup organized and protected at your reloading bench.

How much thicker is each holder than a standard shellholder?

The five holders are progressively thicker: .002", .004", .006", .008", and .010" thicker than a standard #1 shellholder (which measures .125" from the bottom of the case head cut to the top). Each is marked so you know exactly which offset you're using.