Rimfire 101

Rimfire competitions: NRL22, PRS Rimfire, ARA/RBA benchrest, ISSF 50 m, biathlon and ELR22

Written in our own words from the sources cited after each fact. We haven't run hands-on tests for this page; where sources disagree we say so. Prefer the primary source (SAAMI, the maker, the governing body) if anything here conflicts with it.

DisciplineFormat in briefRules
NRL22A monthly five-stage course of fire on steel, mostly at 100 yd or less, shot at clubs nationwide; divisions include Open, Base and Semi-Auto.[NRL22 rules][NRL22 FAQ]
PRS RimfirePositional precision matches run under PRS rimfire rules.[PRS Rimfire rules]
ELR22Long-range .22 LR steel shooting.[ELR22 Association]
ARA benchrest.22 LR from a rest at a 50 yd minimum on a 25-bull target, one shot per bull, 20 minutes per card, scored on the worst edge.[ARA rule book (Jan 1, 2026)]
RBA benchrestAlso 25 bulls at 50 yd, but scored best-edge with a 250-point maximum (per a club comparison).[River Bend Gun Club]
ISSF 50 m rifleOlympic-style prone and three-position smallbore events on standardized 10-ring targets.[ISSF general technical rules (2023)]
Biathlon.22 LR at 50 m on knockdown targets: 45 mm prone and 115 mm standing scoring areas.[IBU event and competition rules annexes (2024)]

Ready to try one? How to get started in NRL22 · PRS rimfire and ELR22 wind reading · find a match.

Ammo for competition

Match shooters test lots because .22 LR consistency varies. Lapua runs rimfire test centers for lot testing[Lapua Rimfire Performance Center][Lapua rimfire test shooting]. Our method: ammo lot testing.

Sources

  1. NRL22 rules
  2. NRL22 FAQ
  3. PRS Rimfire rules
  4. ELR22 Association
  5. ARA rule book (Jan 1, 2026)
  6. River Bend Gun Club: rimfire benchrest targets (ARA vs RBA)
  7. ISSF general technical rules (2023)
  8. IBU event and competition rules annexes (2024)
  9. Lapua Rimfire Performance Center
  10. Lapua rimfire test shooting

More Rimfire 101