top of page

37MM 45 ACP 5 Inch Casing High Performance Screw Apart Shell

$60.00 Plus S&H


This brand new, unused 37 MM shell utilizes a 45 ACP blank cartridge for propulsion. This shell is designed to be used with smokeless powder. For easy maintenance, the base on this shell screws apart via a pin wrench. All our shells are designed for best possible results.

This shell uses our .45 ACP Burst Disks.

Umlike typical 37mm Reloadig that uses FFg Black Powder, this uses modern powder.

Instruction included.

Powder, Primers, Reloader, and Accessories NOT included.

Shell Specs:

  • Shell Length: 5 Inch
  • Inside Diameter: 1.390 Inches
  • Inside Depth: 4.625 Inches (approximate)


Load Data

Burst Disks: 0.470 Inch

diameter, 0.016 Inch thick Copper

Primer: Remington 2½ Large Pistol Primer

Powder Grain weight of Charge Results 
452AA5 grainsVery good load power
473AA5 grainsVery good load power
Herco8 grainsVery good load power, best
PB3 grainsGood load
 4 grainsVery Good load power
 5 grainsVery good load power
 6 grainsToo powerful, Do not use.
Bullseye3 grainsGood load
 4 grainsGood load
 5 grainsVery good load power
Unique3 grainsGood load
 4 grainsGood load
 5 grainsVery good load power
 6 grainsToo powerful, do not use


The best option for wads is the .016 Copper. One casing was loaded 15 times with the 8 grain loads and a solid carrier for weight and resistance, and the casing and vent plug performed perfectly (THIS IS NOT RECOMMENDED AND IS DANGEROUS). Each loading had very nice recoil, no primer push, and no signs of too much stress.

Each load in the table above was loaded 5 times, in the same casing, to check for power, and to make sure the loads were safe, and could be duplicated without casings wearing out, or the loads causing stress that might cause a casing to fail. These are simply guidelines and anyone attempting to load their casings must understand injury and/or death can be a result of loading your own shell. Pace Launcher Casings LLC. cannot be held responsible for injury caused using our loading guidelines as they are simply “guidelines” and cannot be guaranteed to work.


Tested in Havoc, Tac-d, and IWI Launchers.

Tac-D performed the best.


Limited Availability.

This item may be out of stock, check website frequently.
Quantity Limit One per Purchase.
Cannot Mix and Match Ammo.
Ships to your home by USPS.
No Federal License Required.
Warning: Make sure your comply with all state and local laws where you reside before ordering. Any restrictions are buyer’s responsibility.
Cannot Ship to a PO Box or Business Address.


37mm Rounds, Launchers, Cleaning Kit, Reloading Kit, Inserts, Accessories, Carry Handle, and Picatinny Rail Slide sold separately.

Sorry, all prices are subject to change depending on availability and manufacturer increases.

Any questions about use or to place an order, please contact us -
Everything 37mm and Exotic
Phone: 480 955 9130
Hours: Monday through Saturday, 10:am to 5:00pm, Closed Sundays

JS Firearms Sales and Accessories LLC, Everything 37mm and Exotic, Camping, Hiking, Perimeter Defense, Grenades, Explosives, Fireworks, 37mm, M203 Launchers, M79, Chalk Rounds, Flash Rounds, Manufacturing, Build to Soot, 40mm, Tear Gas, Non Lethal Defense, Throwing Knives, Throwing Stars, Stink Bombs, Bulk Ammo, Ammunition, Trail Cameras, Cross Bows, Archery, Paintball, Air Soft, Flame Throwers, Gatling Guns, Tracer Ammo, Golf Ball Launchers, Gunsmith Services, Flare Guns, Flares, 26mm, Grappling Hooks, Rope Ladders, Bowling Ball Mortars, Firearm Appraisals, Gun Ownership, Best Buy 4 Guns, Coupons, Life Time Warranty, Exotic Ammo, 12 Gauge, 410, 20 Gauge, Shotgun Shells, Hunting Ammo, Target Ammo, Self Defense Ammo, Armor Piercing, USMC, US Military, NATO, Veterans, Veteran Owned Company, Smoke Bombs, Thumper, Gun Shop, Explosives, Tire Spikes, Warning Signs, Law Enforcement, Antiques, Mailing List, Pre Order, Pre Payment, Payment Methods, Knives, Swords, Throwing Axes, Throwing Darts, Pepper Spray, Stun Guns, Used Equipment, Military Surplus, Used Launchers, Firearm Repairs, Belt Fed, Ammo Packs, Chemicals, Cleaning Kits, Reloading Supplies, Coast Guard, Laser Engraving, Reusable 37mm Aluminum Canisters, 37mm Plastic Casings, Shotgun Primers, Black Powder, Pistol Primers, Hornets Nest, BeeHive, 12 Gauge Inserts, 26mm Inserts, 380 Caliber Insert, 9mm Insert, 410 Insert, NFA Items, 60mm, 105mm, 155mm, Bowling Ball Mortars, Novelty Ammo, Fireworks


37MM 45 ACP 5 Inch Casing High Performance Screw Apart Shell

    bottom of page