Can I Use ELEY tenex biathlon in a Normal Target Rifle in Freezing Weather?
Yes, with a trade-off worth understanding before you buy. ELEY tenex biathlon is built on the tenex platform and engineered specifically for freezing conditions: a cold-temperature lubricant rated on the box for use to -20°C, a reduced cartridge diameter to aid cycling, and an increased propellant charge. Its maximum Radial Standard Deviation (RSD) is 4.50 mm and its velocity band is 335-354 m/s (1100-1160 ft/s).
That velocity band sits above the standard flat-nose competition range. So in genuinely freezing weather, tenex biathlon is a well-engineered choice for a conventional target rifle. In mild conditions, the standard flat-nose range remains the more suitable option for 50 m competition.
What tenex biathlon Actually Is
Launched in 2012 and built on the tenex platform, tenex biathlon exists because ELEY examined bullet and chambering characteristics at freezing temperatures and found three things worth changing.
A scientifically designed cold-temperature lubricant. ELEY’s biathlon lubricant enhances consistency, reduces barrel wear and maintains accuracy in freezing temperatures, with the box stating lubrication for use to -20°C. Since the purpose of .22LR lubricant is to ease repeated chambering, a lubricant that behaves predictably at low temperature is doing the job that matters most when it is cold.
A reduced cartridge diameter, to aid cycling in bolt-action and straight-pull biathlon rifles. That is a chambering benefit, and it carries across to a conventional bolt-action target rifle.
An increased propellant charge, giving enhanced terminal energy and greater knock-down force for the biathlon target. The higher velocity band follows from it.
It retains the patented flat-nose bullet at 2.59 g / 40 gr, and the tenex platform underneath.
The Honest Trade-Off
| ELEY tenex | ELEY tenex biathlon | |
|---|---|---|
| Profile | Flat nose | Flat nose |
| Weight | 2.59 g / 40 gr | 2.59 g / 40 gr |
| Velocity | 317-330 m/s (1040-1085 ft/s) | 335-354 m/s (1100-1160 ft/s) |
| Maximum RSD | 3.75 mm | 4.50 mm |
| Lubricant | Beeswax-tallow | Biathlon, to -20°C |
| Cartridge diameter | Standard | Reduced, to aid cycling |
| Propellant charge | Standard | Increased |
Two differences drive the decision.
The first is velocity. tenex biathlon runs higher than the standard flat-nose range because the biathlon discipline requires knock-down force on a metallic target. If your competition is 50 m paper, that extra velocity buys you something you do not need. The standard 317-330 m/s band is the one ELEY’s 50 m competition products are built around.
The second is RSD. tenex holds a maximum RSD of 3.75 mm, the tightest published standard in the ELEY range; tenex biathlon holds 4.50 mm. Both are premium standards proved by 200 rounds of proof testing from every batch across four different firearm brands, but they are not the same standard.
So the trade is straightforward: in freezing conditions you gain lubrication engineered for the temperature and a cartridge diameter that helps the action cycle. In mild conditions you give up the tightest accuracy grade ELEY publishes and take on velocity you have no use for.
The Club-Level Cold-Weather Option
If tenex biathlon is more cartridge than your winter shooting needs, ELEY biathlon club is the club-level answer: a refined bullet and case design for reliable cycling in extreme winter conditions, a specialised cold-weather lubricant and an increased propellant charge, at 323-330 m/s (1060-1085 ft/s) with a maximum RSD of 5.50 mm, on a round-nose profile at 2.59 g / 40 gr.
Its velocity band sits much closer to the standard flat-nose range, which makes it a gentler step for a shooter who wants cold-weather lubrication without a substantial change in velocity.
Test It Before You Commit a Season to It
Every barrel has its own unique dimensions and harmonic characteristics, and each batch of ammunition performs slightly differently. What performs flawlessly in one barrel may not deliver the same results in another, and a change of product tests that at least as hard as a change of batch.
Before you switch your winter ammunition, test it in conditions representative of your competition. Look up candidate batches free at eleyxshot.com, and book batch testing through your own barrel at eley.co.uk/vip.
The Bottom Line
You can use ELEY tenex biathlon in a conventional target rifle in freezing weather, and in genuinely cold conditions there is a real engineering case for it: lubricated to -20°C, reduced cartridge diameter for cycling, increased propellant charge, 4.50 mm RSD on the tenex platform. But its 335-354 m/s band sits above the 50 m competition range, so for mild conditions the standard flat-nose products remain the better fit. If you want cold-weather engineering closer to standard velocity, ELEY biathlon club at 5.50 mm RSD is the club-level option. Test whichever you choose in representative conditions, and confirm it through your own barrel at eley.co.uk/vip.