Powder Checks
RCM Laser Powder Check Pro V4 — 7" Integrated Screen
V4 laser powder check with integrated 7-inch screen. Full dashboard at the press — live readings, pass/fail indicators, no phone required.
From $799.99View productProfessional reloading sensors
Every charge checked. By laser.
Rock Canyon Munitions builds laser powder checks, bullet checks, and case sensors for Mark 7 and stand-alone presses. Tired of powder spills and stuck probes? Load with accurate, no-contact verification on every single round.
Micrometer-level accuracy Direct Mark 7 Autodrive integration Built by loaders, for loaders
Why RCM
Stop spilling expensive powder
Probe-style sensors spill powder, throw false positives, and need a different probe for every cartridge. Our laser platform replaces all of it.
No-contact laser measurement
Lasers verify every powder charge without touching the case. No spills, no suction, no stuck probes — micrometer-level accuracy on every drop.
Stops the press automatically
Direct Mark 7 Autodrive integration halts the machine the moment a charge, bullet, or case is out of spec — before bad rounds stack up.
Round-by-round data
Live dashboards on-screen or over Wi-Fi. Charge trends, pass/fail logs, timestamped sessions, and CSV export for your QC records.
Powder Desk
Who has your powder today?
Look up any of 228 powders: what it is, which stores have it in stock, and what a pound really costs once hazmat and shipping are in. 419 listings in stock right now, checked every morning.
- 214 more — narrow the search, or browse the full directory.
Winchester · shotshell / pistol
Winchester 572
What it is
A dual-purpose ball powder built around a specific heavy 12 gauge field load, and it does that job well, plus clay and field work in 20 and 28 gauge. On the handgun side its span is unusually wide, from .25 ACP up to .45 ACP, because the medium burn rate suits both tiny cases and big slow ones. It is competent and unexciting; nobody switches to it chasing accuracy, they use it because one jug covers the shotgun bench and the pistol bench.
- Burn speed
- Medium-fast · #55 of 198
- Grain
- Spherical
- Common in
- 12 Gauge, 16 Gauge, 20 Gauge, 28 Gauge, 45 ACP
Who has it & what it costs
| Store | Size | Shelf | In hand /lb | Stock |
|---|---|---|---|---|
| Bruno Shooters Supply | 8 lb | $319.99 | $45.86 | In stock |
| Lohman Arms | 8 lb | $335.54 | $45.87 est. | In stock |
| Graf & Sons | 8 lb | $347.99 | $48.18 | In stock |
| Hodgdon (direct) | 8 lb | $370.99 | $50.30 est. | In stock |
| Lohman Arms | 4 lb | $174.27 | $51.43 est. | In stock |
| Hodgdon (direct) | 4 lb | $190.99 | $55.61 est. | In stock |
| Graf & Sons | 4 lb | $189.99 | $56.86 | In stock |
| Lohman Arms | 1 lb | $45.24 | $76.68 est. | In stock |
+4 more listings on the powder page.
Stock and prices checked Sep 17, 7:44 AM MT, once a day. “In hand” spreads each store’s hazmat fee and shipping over one container — on a single pound that fee is most of the difference. Check the store before you order.
For Mark 7 owners
RCM Laser Powder Check vs. the Mark 7 PowderCheck
No probe, no spilled powder, no probe swaps between cartridges — and it stops the Autodrive automatically. We put both side by side, honestly, including where the factory sensor still wins.
Read the honest comparisonFeatured
Precision sensors for high-volume reloading
Powder Checks
RCM Laser Powder Check Pro V3
V3 laser powder check with off-press laser centering fixture and centering dies (9mm, .223/5.56). For Mark 7 and stand-alone presses.
From $549.99View product
Bullet Checks
RCM Bullet Check Pro
Detects bullet presence AND correct seating height. Prevents thousands of rounds from seating-die walk.
$549.99View product
Bullet Checks
RCM Bullet Check Standard
Integrates with Mark 7 Autodrive at station 9 or 10. Detects bullet presence to stop the press on missed bullets.
$249.99View productDashboards
RCM Dashboard with 7" Screen
Sensor dashboard with 7-inch display. Supports up to 2 RCM sensors, CSV export, browser access over your network.
From $399.99View productIn the shop
Turn QC time into range time
From powder verification to our 250-round tray loader, every RCM product is designed, tested, and iterated on our own presses before it ever ships to yours.
See the machines runStay on target
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Questions about your press setup?
Sensor compatibility, integrations, dealer inquiries — talk directly to the people who build these. We answer within one business day.
Contact us307-423-9296