Content Results:

• .223 Remington Ammo Guide: 55 Grain, Twist Rates and Chambers - .223 Remington ammo guide: .223 vs 5.56 chambers, 55 grain FMJ-BT, twist rates, bolt guns and ARs, and the PMC Bronze .223 we stock in Phoenix.
• .300 Blackout Ammo Guide: Supersonic vs Subsonic and AR Safety - .300 Blackout ammo guide: supersonic vs subsonic, bullet weights, AR-15 conversion, the 300 BLK and 5.56 mix-up danger, and what we stock in Phoenix.
• 308 Winchester Ammo Guide: Facts, NATO Notes and Stock - 308 Winchester guide: 1952 origin, .308 vs 7.62x51 NATO, common bullet weights. We do not stock .308 right now; see the rifle ammo we do carry.
• .45 ACP Ammo Guide: M1911 History, 230 Grain Ball and +P - .45 ACP explained: Browning design, the M1911, 230 grain ball, +P pressure and why it is subsonic. We do not stock .45 ACP right now; see our 9mm.
• .50 BMG Ammo for Sale - .50 BMG ammo for sale and in stock: PMC Bronze 660 grain FMJ boat tail, 10 rounds a box, shipped UPS Ground from Phoenix or picked up at the shop.
• 5.56 NATO Ammo Guide: Loads, Rifles and What We Stock - 5.56 NATO ammo guide: M855 vs M193, SS109, twist rates, chamber markings, and the 5.56 we stock by the case in Phoenix, AZ.
• 5.56 vs 7.62x39: Differences, Rifles and Weight per 1,000 - 5.56 vs 7.62x39 compared: bullet weight, velocity, trajectory, recoil, rifles, steel vs brass, and how much 1,000 rounds of each weighs to ship.
• 5.7x28 Ammo Guide: Guns, Loads and What We Stock - 5.7x28mm ammo guide: how the cartridge works, which pistols and carbines fire it, FMJ vs hollow point, and the FN 5.7x28 we stock in Phoenix.
• 7.62x39 Ammo Guide: Steel vs Brass, Rifles and What We Stock - 7.62x39 ammo guide: the AK and SKS cartridge, steel case vs brass case, bullet diameter, range rules, and the 7.62x39 we stock in Phoenix.
• 7.62x54R Ammo by the 20 Round Box or the Case - 7.62x54R ammo in stock: Wolf Military Classic 148 grain FMJ in 20 round boxes, 500 round cases and more, for Mosin Nagant, SVT-40, PSL and Dragunov rifles.
• 9mm Ammo Guide: Grain Weights, +P and Duty Hollow Points - 9mm Luger ammo guide: 115 vs 124 vs 147 grain, what +P means, FMJ vs hollow point, and the Speer Gold Dot LE Duty 9mm we stock in Phoenix.
• 9mm +P vs Standard Pressure: What +P Ammo Means - What +P means in 9mm: SAAMI pressure limits, which pistols can fire it, and how Speer Gold Dot 124 gr +P compares to 147 gr standard pressure.
• Ammo FAQ: Your Questions Answered - Ammo FAQ from Heisenberg Ammo in Phoenix: storage, steel vs brass, FMJ vs hollow point, 5.56 vs .223, 9mm weights, ID rules and shipping.
• Ammo for AK-47 and SKS: 7.62x39 Steel vs Brass - Ammo for AK-47 and SKS rifles: 7.62x39 basics, steel vs brass case, bimetal and steel-core range rules, SKS stripper clips, and what we stock.
• Ammo for AR-15 Range Practice: How to Choose - How to choose AR-15 practice ammo: chamber markings, twist rate vs bullet weight, steel-core range rules, and the 5.56 and .223 we stock in Phoenix.
• Ammo Prices Q4 2026: What Bulk Buyers Actually Pay - October 2026 ammo price report: median cost per round for 9mm, 5.56, .223, 7.62x39, 5.7x28 and 12 gauge at 4 large online retailers, with methodology.
• Best 5.56 Range Ammo 2027: Top Picks for AR-15 Practice - Top 5.56 range ammo for 2027: M855 and SS109 by the case, 55 grain M193-type loads, .223 for steel-core bans, with maker specs and what we stock.
• Best 5.7x28 Ammo 2027: Top Picks for Defense and Range - Top 5.7x28mm ammo for 2027: FN SS198LF, Speer Gold Dot 40 gr, FN SS197SR and GUNR SS201, with maker specs and what we stock in Phoenix.
• Best 7.62x39 Ammo 2027: Top Picks for AK and SKS - Top 7.62x39 ammo for 2027: steel and brass 123 grain FMJ for practice, PMC Bronze, and Hornady SST for hunting, with maker specs and what we stock.
• Best 9mm Self-Defense Ammo 2027: Top Picks - Top 9mm self-defense loads for 2027: Speer Gold Dot, Federal HST, Hornady Critical Duty and Critical Defense, with maker specs and what we stock.
• Best Bulk Ammo to Stock Up On in 2027: How to Pick - How to pick bulk ammo for 2027: which calibers make sense by the case, cost per round, brass vs steel, and storing ammo in Arizona heat. Our case packs.
• Frequently Asked Questions
• FMJ vs Hollow Point Ammo - FMJ vs hollow point ammo: how each bullet is built, how it behaves on impact, and which suits range practice or defensive use.
• How Many Rounds in a Case of Ammo? - There is no standard case size. Box, brick, case and battle pack explained, plus every pack size and shipping weight we stock in Phoenix.
• PMC Ammo: The Bronze Line and What We Stock - PMC ammo explained: who Precision Made Cartridges is, what the Bronze line is for, and the PMC 223A and 50 BMG 50A we stock in Phoenix, AZ.
• Remanufactured vs New Ammo: What the Labels Mean - Remanufactured vs new ammo: once-fired brass reloaded commercially, factory new, and handloads compared, plus which ammo we stock is reman (one SKU).
• Speer Gold Dot Ammo: Bonded Hollow Points and the LE Duty Line - How Speer Gold Dot is built: Uni-Cor bonded jackets, two-stage hollow point cavity, the LE Duty line, and the two Gold Dot 9mm loads we stock in Phoenix.
• What Does Grain Mean in Ammo? - Grain is a unit of weight: 7,000 grains to the pound. What it measures on an ammo box, how weight trades with velocity, and our loads from 20 to 660 gr.