Starline Brass 9×23 Comp Brass 100 Pack

The 9×23 Comp is a purpose-built competition cartridge designed to deliver exceptional reliability and performance in high-capacity race guns. Closely related to the 9mm Super Comp and 9×23 Winchester, it has become a popular choice among IPSC and USPSA Open Division shooters who require high velocities, excellent feeding characteristics, and the ability to comfortably achieve Major power factor with 9mm projectiles.

Starline updated the design of its 9×23 Comp brass in 2003 with a revised headstamp to clearly distinguish it from the similar-looking .38 Super Comp. At the same time, the internal case geometry was refined to better accommodate heavier projectiles, including 147-grain bullets, without affecting performance when loading lighter bullet weights. The result is a highly versatile case suitable for a broad range of competition loads.

At Hamilton’s Armoury, we back Starline Brass because it’s built with the same mindset we apply to everything we do — no shortcuts. With over 30 years of dedication to quality, Starline continues to produce premium brass for those who take their shooting seriously.

Note: Starline's current 9×23 Comp brass features an updated headstamp for easier identification and revised internal geometry to improve compatibility with heavier bullets, including 147-grain projectiles, while maintaining excellent performance with lighter bullets.

Also Known As: 9×23 Comp Brass, 9 Super Comp Brass, 9×23 Winchester Brass, 9mm Super Comp Brass

Case Length: 0.894 – 0.899" O.A.L.

Primer Size: Small Rifle

SKU: SB-4600
Availability: In Stock At Supplier

Estimated Time Of Delivery From Supplier: 7 Days To Customer

$80.00
$80.00

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At Hamilton’s Armoury, we handle shipping with a focus on speed, security, and reliability. We process orders within 1–2 business days (with weekend and public holiday orders handled on the next business day), provide tracking once dispatched and ship Australia-wide via trusted carriers. All deliveries include tracking and require a signature on arrival to help ensure parcels are received safely.

We offer Standard delivery (2–8 business days) and Express delivery (1–3 business days, where available), noting that remote or regional areas may take longer depending on carrier performance. Shipping costs are calculated at checkout based on location and method, with no added margin. We also offer in-store pickup from our Store and certain restricted items—such as powders, primers, and ammunition—are pickup-only due to transport restrictions. If an order is delayed, damaged, or incorrect, we ask customers to email sales@hamiltonsarmoury.com.au with their order number and issue details so we can resolve it promptly.

At Hamilton’s Armoury, we stand behind our products and aim to ensure every customer is satisfied. We accept returns on most new, unused items within 14 days of delivery, provided the item is in its original condition with all packaging, tags, components included and proof of purchase is supplied. We cannot accept returns for used or damaged items, special order or clearance items, gift cards, perishable goods, or customised/personalised products.

We offer exchanges for size, colour, or model where stock is available; if not, we can provide a store credit or refund. Once a return is received and inspected, we confirm approval and issue refunds to the original payment method within 5–10 business days, with shipping costs only refundable if the return is due to our error (such as an incorrect or defective item). Customers cover return shipping unless the item arrived incorrect, damaged, or faulty and we recommend using a trackable, insured service. Returns are sent to our Goornong, VIC address and to begin a return we ask customers to email sales@hamiltonsarmoury.com.au with their order number, reason, and photos where relevant; we respond within 1–2 business days, while noting we may refuse returns that don’t meet conditions and that this policy does not affect rights under Australian Consumer Law.

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