The .25 caliber ELR Slugs are here!!!

Precision Engineering ZAN Projectiles ELR slugs are meticulously designed and manufactured to the highest standards of quality and precision. Each slug undergoes a multi-step quality control process to ensure that it delivers consistent performance, shot after shot. The tight tolerances, uniformity, and aerodynamic design help achieve unparalleled accuracy, even at extended ranges.
Aerodynamic Design The key to achieving long-range success with airguns lies in the slug’s aerodynamic profile. ZAN ELR slugs are optimized for minimal drag, reduced wind drift, and stable flight paths. The slugs feature sleek, high-BC (Ballistic Coefficient) designs, which allow them to retain velocity and energy longer, resulting in flatter trajectories and greater accuracy.
Superior Material Selection Crafted from premium materials, such as high-quality lead or alternative alloys. These high-quality materials ensure that your shots are more accurate and predictable.

The .25 ELR slugs are available on our website . In the USA market first to receive them will be Utah Airguns in about 1 month.

- 61.3 grain/ 3.97 gr
- with BC .271 – at 976 FPS (depending on the tune),
- length 13.05 mm .

That creates PRS/Long range best slug ever made. Box contains 200 PCS, each in our standard plastic trays.

Screenshot 2025-04-17 at 12.51.47.png
 
I am just asking because of the BC emphasis of “AT 971 FPS” which is 130 fpe. IMHO most well designed slugs with the correct drag function show a relatively constant BC from 850 to 1000 fps. When I tested the .22 Zan 42.3 gr they were at approximately 900 fps, and despite many claims here and on IG to the contrary, my G1 BC was about 10 to 15% less than the .22 @Altaros 40 grain Kings. They did have very good accuracy at 100Y, but not quite as good as the @Altaros.
Reasoning is shooting .25 the @Altaros 60 grain Queen at 880 fps yields a 0.245 BC G1. And cranking most guns up past 105 fpe in .25 results in the juice being not worth the squeeze. So I’m looking forward to testing these heavy .25 ZANs in a few months when they get to the USA.
 
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I am just asking because of the BC emphasis of “AT 971 FPS” which is 130 fpe. IMHO most well designed slugs with the correct drag function show a relatively constant BC from 850 to 1000 fps. When I tested the .22 Zan 42.3 gr they were at approximately 900 fps, and despite many claims here and on IG to the contrary, my G1 BC was about 10 to 15% less than the .22 @Altaros 40 grain Kings. They did have very good accuracy at 100Y, but not quite as good as the @Altaros.
Reasoning is shooting .25 the @Altaros 60 grain Queen at 880 fps yields a 0.245 BC G1. And cranking most guns up past 105 fpe in .25 results in the juice being not worth the squeeze. So I’m looking forward to testing these heavy .25 ZANs in a few months when they get to the USA.
I assume you need a pretty fast twist for these heavy, long slugs right?
 
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I assume you need a pretty fast twist for these heavy, long slugs right?
1:16 gives a very good SF (Stability Factor). That is the Superior Slug in .25. The Superior Heavy is 1:18, which works best for the Altaros 49.5 grain. In .22, the 1:16 is the only twist available for slugs in an FX liner.
I think the 1:16 would be fine for the heavy .25 ZANs.
 
I doubt that twist would work well with 60+ grain .25 slugs. Your SF would be under 1.5 (about 1.3). We’re usually looking for 1.5 minimum but not too high. The 60 grain @Altaros Queens in my 1:16 twist have an SF of 2.02.


I was thinking the .25cal Altaros Smooth at 49.5gr.

➧ With an RTI RPB barrel (600mm)....
I thought they had a twist of 1:20 — or did I get that wrong?

Matthias
 
I was thinking the .25cal Altaros Smooth at 49.5gr.

➧ With an RTI RPB barrel....
I thought they had a twist of 1:20 — or did I get that wrong?

Matthias
Don’t know about the RTI barrels. The Altaros Smooth 49.5 shoot well in a 1:18 twist barrel. So I’d think 1:20 would still be ok.
 
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