Easton 5mm FMJ Review: Weight Where You Want It
Buy Easton 5mm FMJ shafts if you want a heavy, small-diameter hunting arrow that carries kinetic energy into bone and pulls easily out of a dense target, because the alloy jacket adds mass and slickness that a bare carbon shaft cannot. Skip them if you shoot targets, need maximum speed on a flat trajectory, or are still learning, because the same money buys lighter, cheaper carbon shafts that shoot faster and forgive more.
A carbon core in a 7075 alloy jacket, at 5mm.
Easton 5mm FMJ Arrow Shafts with HIT Inserts, 300 Spine, 12-Pack
Under $250
Alloy-jacketed carbon core shafts in 5mm, supplied bare with HIT inserts and X Nocks.
Check price on AmazonSpecifications
| Construction | High-strength carbon core wrapped in a 7075 alloy metal jacket |
|---|---|
| Diameter | 5mm micro diameter |
| Spine | 300 in this pack, with 250, 340, 400 and 500 available in the range |
| Inserts | 5mm HIT inserts included, 16 grains |
| Nocks | 5mm X Nocks pre-installed, 9 grains |
| Supplied as | Unfletched bare shafts, 12 pack |
| Manufacture | Made in Easton's USA facility |
| Budget | Under $250 |
Specifications above come from Easton's published specifications on the current listing. Treat pricing as approximate, since Amazon pricing moves.
What it does well
- The alloy jacket adds mass without adding diameter, which is the direct way to raise kinetic energy and momentum at a given speed.
- 5mm is a small diameter, so there is less shaft friction going through a target and less surface for wind to push on.
- The metal jacket is slick, which is why FMJ shafts pull out of dense foam far more easily than bare carbon of the same diameter.
- HIT inserts strengthen the front end and improve broadhead alignment, which is where fixed-blade flight problems usually start.
- Easton publishes the insert and nock weights, which makes an accurate total arrow weight and FOC calculation possible before you build.
Where it falls short
- They are heavy, and heavy arrows drop faster. If you misjudge yardage, a heavy arrow punishes it more than a light one does.
- They are sold as bare shafts. You still need to cut, fletch and fit points, which is either your time or a shop's labour.
- At under $250 for 12 they are a premium shaft, and a beginner will break arrows learning.
- An alloy jacket can dent or bend where a carbon shaft would either survive or break outright, so inspect after hard impacts.
- 300 spine is a stiff shaft suited to heavy setups. Ordering the wrong spine is the single most expensive mistake in arrow buying.
What owners report
Published owner reviews of FMJ shafts are consistent on the two things Easton claims: they hit hard for their speed, and they come out of targets easily. Bowhunters who shoot heavier animals or want maximum penetration on a quartering shot are the group that recommends them most strongly. The recurring complaint is trajectory. Owners moving from a light carbon arrow report noticeably more drop past 40 yards, which is exactly what a heavier arrow does and not a defect.
The second recurring theme is build accuracy. Because these ship as bare shafts, the finished arrow is your build, and the total weight and balance depend on your point, insert, wrap and vanes. Do the maths before you spend: our total arrow weight calculator gives you the finished grain weight, the FOC calculator tells you whether the balance point is where you want it, and the kinetic energy calculator converts that into the number people actually argue about.
Spine is the part to get right before anything else. A 300 spine shaft is stiff and belongs on a heavy, long-draw setup. Run your draw weight, draw length and point weight through our arrow spine calculator, and if you are cutting your own shafts, the cut length calculator will save you from a shaft that is an inch too short to use.
The wider question is whether a heavy alloy-jacketed arrow is right for you at all. Our carbon versus aluminium comparison covers the material argument, the heavy versus light arrows comparison covers the trajectory and penetration trade, and the hunting arrow guide ranks the field including lighter and cheaper options.
Who it suits
- Bowhunters prioritising penetration on larger animals or quartering shots.
- Archers who shoot inside 40 yards and range every shot.
- Anyone who builds their own arrows and wants published component weights to work from.
Who should skip it
- Target archers, who want speed, a flat trajectory and cheaper shafts.
- Beginners, who will break arrows and should learn on inexpensive carbon.
- Archers who guess yardage rather than ranging it, since heavy arrows punish that hardest.
Alternatives worth considering
Easton Axis 5mm Carbon Arrows with HIT Inserts, 400 Spine, 6-Pack Fletched
Under $100
The same 5mm micro diameter and HIT insert system without the alloy jacket, and supplied fletched. Faster and flatter, and it gives up some of the FMJ's penetration advantage.
Check price on AmazonGold Tip Hunter XT Arrows with Raptor Vanes, 340 Spine, 6-Pack
Under $100
A long-standing hunting shaft that arrives fletched and ready to cut, at a fraction of the price per arrow. The sensible choice while you are still losing arrows.
Check price on AmazonVictory Archery VAP TKO Fletched Arrow, 300 Spine, 6 pack, Elite
Under $250
A micro diameter target and hunting shaft sorted to a tighter straightness tolerance. Take it if consistency between arrows matters more to you than mass.
Check price on AmazonKeep reading
- Carbon vs aluminium arrows
- Heavy vs light arrows
- Best hunting arrows
- Arrow spine calculator
- Total arrow weight calculator
- Hamskea Hybrid Hunter Pro review
This review draws on published specifications, manufacturer figures and the consensus of verified owner reviews. We have not tested this product ourselves, and we say so rather than implying otherwise. As an Amazon Associate we earn from qualifying purchases.
Frequently asked questions
Are FMJ arrows better for hunting?
They are better at one thing: carrying energy into resistance. The alloy jacket adds mass at a small diameter, which raises momentum at any given speed and helps on bone and heavy hide. What you give up is trajectory, since a heavier arrow drops more, so ranging becomes more important. For shots inside 40 yards where you range every one, that trade favours the heavy arrow.
What spine do I need?
It depends on your draw weight, your draw length, your point weight and your arrow's finished length, not on your bow's brand. A 300 spine shaft is stiff and suits a heavy, long-draw setup. Put your actual numbers into our arrow spine calculator before ordering, because a mismatched spine will not fly with broadheads no matter how well the bow is tuned.
Easton FMJ vs Easton Axis?
Same 5mm diameter and the same HIT insert system, different material. The Axis is bare carbon: lighter, faster, flatter and cheaper. The FMJ adds an alloy jacket for mass and easier target removal. Choose the FMJ if penetration is your priority and you range your shots, the Axis if trajectory and speed matter more.
Do these arrows come ready to shoot?
No. This pack is bare shafts with inserts included and nocks pre-installed. You still need to cut them to your draw length, fletch them, and fit points. A pro shop will do all of it, and our arrow cut length calculator will tell you what length to ask for before you pay for a dozen shafts.
Are heavier arrows always more accurate?
No. Heavier arrows are more forgiving of a small tuning error and carry better through wind, and they drop more, which makes yardage errors worse. Lighter arrows shoot flatter and expose tuning problems more. The right weight is the one that matches how you shoot and how far, which is why the heavy versus light arrows comparison exists rather than a single recommendation.
How we choose: we compare published manufacturer specifications, verified owner reviews, and pro shop guidance. We do not test gear in person. Draw weight and arrow spine affect safety, so follow your bow manufacturer's specifications and have setup work checked by a qualified pro shop.
