OSA M-Class Practice - 16 May 2026
M-Class is OSA's long-range bullseye shooting. Like F-Class, but MilCun-style.
OSA members, affiliates and guests are welcome to participate in long-range competition practice sessions at the MilCun Training Center. Be aware that the practices are open to qualified shooters only. To qualify, you must have attended at least one of the following:
- F-Class or Precision/Sniper competition
- The MilCun Precision/Sniper competition course
- The MilCun Enhanced (Long-Range) Rifle Skills course
- The OSA Long-Range Rifle Practices
You can petition for equivalency by emailing lindamilcun@gmail.com.
This practice focuses on M-class style competition training, with two or three shooters to each firing point. You'll need a scoped rifle with a bipod. You can use a rear bag. The distances are 300, 400, 500, and 600 meters. The targets are bullseyes, with about a 1-MOA bull (and about a 1/2-MOA v-bull). You can download the course of fire from the osacanada.ca website (Events page).
Ammunition must be proven safe in your rifle; you must have previously fired at least 50 rounds of this load in this rifle. If the ammo shows any signs of excess pressure, you must withdraw. You'll need about 100 rounds for the day.
Working electronic ear defenders and safety glasses are mandatory. A spotting scope is recommended.
$75.00 for non-members. $25.00 off for OSA members, $25.00 off for OSA affiliate members. If you're under 18, register as a junior. OSA Volunteers who want to claim their discount on this event, please email me.
Check in at the 600 Butts at 0830. You may be asked for proof of club membership.
Mandatory safety briefing starts at 0845. If you are not present for the safety briefing, you will not be able to participate.
If you haven't been to an OSA event before, email lindamilcun@gmail.com for detailed instructions. You must have shooter's liability insurance to enter our facility; i.e., you must be a member of the CSSA, CCFR, NFA, or similar. You must be fluent in English to participate in any OSA event.
Note that we no longer allow photographs to be taken on MilCun property.