Global Ammunition Standards and Reloadability

1. Smallest Practical Calibers for Reloading

While any centerfire cartridge can be reloaded, the decision to do so is typically driven by the “Fiddle Factor” (physical difficulty) versus “Economic Incentive” (savings over factory cost).

The Winner: .32 ACP (7.65mm Browning)

• Economic Reason: As of 2026, .32 ACP is a niche caliber with high factory markups. Reloading it costs roughly $0.20 per round, while factory ammo often exceeds $0.50.
• Practicality: It uses standard Small Pistol Primers and is significantly easier to handle than smaller calibers like .25 ACP.

Marginal/Impractical Calibers:

• .25 ACP: Extremely “fiddly.” Tiny cases often tip over on progressive presses, and powder charges are so small (approx. 1.2 grains) that even minor errors are dangerous.
• .22 LR (Rimfire): Generally not worth the effort. Requires manual application of priming compound and has low reliability compared to factory-primed brass.

2. Globally Available Calibers (2026)

Ammunition availability is dictated by military and law enforcement standardization.

3. Comparison: 6.5 Creedmoor vs. .308 Winchester

The choice between these two “short-action” favorites depends on the mission.

6.5 Creedmoor (Precision Focus)

• Ballistics: Superior aerodynamics mean 20–40% less wind drift and flatter trajectories at 500+ yards.
• Recoil: 25–30% less felt recoil than .308, allowing shooters to “spot” their own hits.
• Trade-off: Shorter barrel life (approx. 2,000–3,000 rounds) and higher ammo cost.

.308 Winchester (General Purpose Focus)

• Durability: Exceptional barrel life (5,000–8,000+ rounds).
• Versatility: Heavier bullet options (180gr+) for large game at close range.
• Availability: Universal global availability; cheapest centerfire rifle round for high-volume practice.

4. 7.62×51 NATO / .308 Win Ammo Pricing (2026)

Current Street Prices

Brands by Tier

• Budget: PPU (Serbian) ~$0.80/rd, Sellier & Bellot (Czech) ~$0.85/rd, Wolf/Tula (steel, cheapest)
• Mid-range: Federal American Eagle ~$0.90–1.00/rd, PMC Bronze ~$0.85–0.95/rd, Hornady American Gunner ~$1.00–1.20/rd
• Match: Federal Gold Medal Match 168gr ~$1.80–2.20/rd, Hornady Match 168gr ELD ~$1.70–2.00/rd, Black Hills 175gr OTM ~$2.00–2.50/rd

7.62×51 NATO vs .308 Win — Are They Interchangeable?

Nearly identical but not the same. Both have identical case dimensions. 7.62×51 NATO has slightly more headspace in chamber spec; .308 Win is ~2,000 psi higher pressure spec.

Safe rule: .308 Win in a 7.62 NATO chamber = fine. 7.62 NATO in a .308 Win chamber = generally fine, slightly higher pressure. FAL (generous chamber) runs both without issue.

Cost vs. Other Calibers

.308 is roughly 2× the cost of 5.56 or 7.62×39 — the main practical argument against a .308 battle rifle for high-volume training.

5. Reloading .308 in Semi-Auto Rifles (FAL/DSA SA58 Focus)

.308 is one of the most reloaded cartridges in existence — huge component availability, well-documented loads.

Brass Recovery from FAL

The FAL ejects hard (high gas pressure, 10–15 feet). Brass can dent on landing. Adjustable gas regulator is a key advantage: turn it down and brass lands gentler and more consistently. Use a brass catcher if reloading is priority; many FAL owners collect from a tarp.

Reloading Cost Estimate

Reloading cuts cost roughly in half vs. factory brass ammo — back to near 5.56 territory for bulk practice loads.

FAL-Specific Reloading Notes

• Full-length resize required — semi-auto with generous chamber tolerances; neck-sizing only is not reliable
• Keep brass per rifle — FAL fire-forms brass to its specific chamber; don’t mix between rifles
• Military brass (7.62×51): Primer pockets are crimped — requires swaging or reaming before repriming (standard with any mil-surplus brass)
• Best bullet weights: 147–175gr; 168gr Sierra MatchKing is the classic accurate load
• Brass life: 5–8 reloads typical with full-length resizing