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17 HMR – Hornady Varmint Express NTX 15.5 gr Lead-Free

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Ammo Reports Team 9 17 HMR

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Official Specs

Manufacturer-stated data. No independent verification — see Submit Your Data below.

Note: Hornady does not publish the test barrel length for this load. The 15.5 gr bullet weight is unique in the .17 HMR lineup — no other currently available factory load uses this exact weight. Hornady also does not specify the bullet’s core material (tin, bismuth, or other non-toxic alloy) in retail literature. At 2,525 fps this load runs slower than the standard 17 gr polymer-tipped loads at 2,650 fps, which is expected given the lighter bullet and different material density compared to lead-core designs.

Variants

This page covers Hornady Varmint Express 17 HMR 15.5 gr Lead-Free (SKU 83171) only.

Hornady’s Varmint Express line for .17 HMR includes two other loads with separate report pages:

• Hornady Varmint Express 17 HMR 17 gr V-Max — the flagship tipped lead-core load
• Hornady Varmint Express 17 HMR 20 gr XTP — heavier controlled-expansion load

The 15.5 gr Lead-Free is a specialized offering for a specific regulatory context — not a general replacement for the 17 gr V-Max.

Best Uses

Good fit:

• Hunting in California or other states with lead ammunition restrictions on public land — this is the primary reason this load exists
• Areas with condor habitat or scavenger-protection zones where lead-free is mandated or strongly recommended
• Hunters who choose lead-free ammunition on principle regardless of local regulations
• Wildlife management situations where secondary poisoning of raptors and scavengers is a concern

Not the right tool for:

• General varmint hunting where lead is not restricted — the 17 gr lead-core loads deliver higher velocity, more energy, and lower per-round cost
• High-volume shooting — at $0.50/round it is the most expensive .17 HMR option in this comparison set
• Situations requiring maximum terminal performance at distance — the lower velocity and lighter bullet weight reduce downrange energy relative to 17 gr standard loads

Why 15.5 gr — The Lead-Free Weight Explanation

Standard .17 HMR bullets are 17 gr or 20 gr because that is what lead-core construction produces at the correct length for the .17 caliber bore. Lead-free bullet materials — typically tin or similar alloys — are less dense than lead. To fit the same physical bullet dimensions that the barrel and chamber expect, a tin-core bullet ends up lighter than its lead-core equivalent. The 15.5 gr weight is not a design compromise — it is the natural result of using a lower-density material in the same bullet geometry. CCI’s lead-free offering lands at 16 gr for the same reason.

Reliability Notes

Not enough data to draw conclusions. This section will be updated as community submissions accumulate.

General notes:

• Lead-free bullets are harder than lead-core designs and can produce more bore wear over very high round counts — not a practical concern for typical rimfire hunting volumes, but worth noting for high-volume users
• Non-toxic bullets at .17 caliber dimensions require precise manufacturing tolerances — Hornady’s quality control reputation is a positive factor here
• At 2,525 fps from a 24″ test barrel, real-world velocity from 20–22″ hunting barrels will be measurably lower — velocity data from community submissions is particularly valuable for this load given its unique weight and construction
• Some semi-auto .17 HMR platforms may cycle differently with lighter-than-standard bullet weights — worth testing before a hunting season with your specific firearm

Competitors

On the Winchester NTX: Winchester produced a 15.5 gr NTX (Non-Toxic Expanding) load for .17 HMR that has since been discontinued. It was the closest direct competitor to this Hornady load at the same bullet weight. Its absence from the current market makes the Hornady 15.5 gr and CCI 16 gr the two remaining factory lead-free options for this caliber.

Price Reality

• Typical retail range: $24–27 per box of 50 (US market, 2025–2026)
• Per-round cost: approximately $0.48–0.54
• Lead-free premium: expect to pay $3–5/box more than equivalent lead-core loads — this is typical across all calibers where non-toxic options exist
• vs. CCI 16 gr Lead-Free: pricing is comparable; CCI typically runs $1–2/box less than Hornady in this category
• Fair price benchmark: under $26/box is reasonable for a lead-free specialty load; above $28/box without supply constraints is overpriced

Prices change. Check the Where to Buy block for current listings.

Where to Buy

Affiliate links. These do not influence ratings, data, or any editorial content on this page.

• Ammunition Depot — add link
• MidwayUSA — add link
• Brownells — add link
• Palmetto State Armory — add link

FAQ

Do I legally need lead-free ammunition for hunting in California?

California’s Nonlead Ammunition Regulation requires the use of nonlead ammunition for all hunting that requires a hunting license anywhere in the state — this covers deer, upland birds, varmints, and all other licensed hunting. The regulation applies statewide, not just in condor zones. If you are hunting ground squirrels or other varmints in California with a firearm, this load — or the CCI 16 gr Lead-Free — is one of the few factory .17 HMR options that complies. Always verify current California DFW regulations before your hunt, as rules can change.

Will lead-free ammunition damage my rifle barrel faster?

At rimfire hunting volumes — a few hundred rounds per season — the difference in bore wear between lead-core and lead-free bullets is negligible for the average hunter. Lead-free bullets are harder than lead-core, which can theoretically increase wear over tens of thousands of rounds. In practice, .17 HMR is not a high-volume caliber for most users, and bore wear is not a realistic concern at normal hunting and practice volumes.

Why is the bullet weight 15.5 gr instead of the standard 17 gr?

Lead-free bullet materials such as tin are less dense than lead. To maintain the correct bullet length and diameter for proper bore engagement and chambering, a non-toxic bullet in .17 caliber ends up lighter than a lead-core bullet of the same physical size. The 15.5 gr weight is the natural result of that material substitution — not an arbitrary design choice. CCI’s lead-free .17 HMR load lands at 16 gr for the same reason.

How does the 15.5 gr bullet perform compared to 17 gr at typical hunting distances?

At 100 yards the difference is modest — the lighter bullet sheds velocity slightly faster but starts at 2,525 fps vs 2,650 fps for top 17 gr loads. Downrange energy at 100 yards is lower, which can matter at the margins of effective range on larger varmints. For prairie dogs and ground squirrels inside 100 yards, the terminal performance difference between 15.5 gr lead-free and 17 gr V-Max is not significant. Beyond 125 yards, the 17 gr leads widen their advantage in retained energy and wind resistance.

Is the Hornady 15.5 gr approved for California condor zones specifically?

Lead-free ammunition that complies with California’s nonlead regulation is approved for hunting statewide, including condor range. Hornady’s lead-free designation and the absence of a lead core qualifies this load under California’s definition of nonlead ammunition. However, regulations are set by the California Department of Fish and Wildlife — always confirm compliance with current CDFW guidance rather than relying solely on manufacturer labeling.

Submit Your Data · Real-World Results

Manufacturer velocity figures are measured under controlled lab conditions — barrel length, temperature, and lot number all affect real-world performance. The data below comes from community submissions tied to specific test conditions and reviewed before
publishing.

Once this page reaches 3 approved submissions, aggregate velocity
and confidence level will appear here automatically.

Shot this load? Share your results — firearm type, barrel length, average velocity, shots fired, temperature. No account required.

All submissions are manually reviewed before appearing on this page.

Results vary by firearm, barrel condition, ammunition lot, and environmental factors.
Submitted data is for reference only.
AmmoReports does not guarantee accuracy of user-submitted results.

Last updated: April 2026 · Data confidence: Low (0 submissions) ·