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Barnes® .50 Caliber Expander™ Hollow Point Muzzleloader Bullets - 250-300 Grains

Barnes® .50 Caliber Expander™ Hollow Point Muzzleloader Bullets - 250-300 Grains

by Barnes

.50 Caliber Sabot with .451 Diameter Bullet
250 to 300 Grains - 15 or 24 pack - Copper Bullets

Original price $23.00 - Original price $35.00
Original price
$23.00 - $35.00
Current price $23.00
SKU 30564
Grain: 250 Grain
Package Qty: 15 Pack


The Barnes® Expander™ Hollow Point Flat Base Muzzleloader Bullets are the muzzleloader equivalent of the X-Bullet. The Barnes™ Expanders are 100 percent copper with a large, hollow cavity for quick and true expansion. The newly, redesigned sabots reduce ramrod pressure needed to load and seat your bullets. The Barnes Expander™ MZ Bullets produce more consistent shot-to-shot velocities and better accuracy than most competing bullets on the market.

Barnes® MZ Expanders™ are .50-caliber, flat-base bullets that deliver the same legendary match-grade accuracy of all Barnes’ muzzleloader bullets. The Expanders are known for deadly performance at both high and low velocities. These 24-pack bullets expand to twice their original diameter, creating six, razor-sharp, copper petals that slice through even the largest game without fragmenting. No bullet fragmentation means these tough, deep-driving, muzzleloader bullets typically retain 100 percent of their original weight, giving you maximum kinetic energy upon impact.


Bullet Weight
250 TO 300 GRAINS
Package Quantity
15 OR 24 PACK
Sabot Caliber
Bullet Diameter
G1 Ballistic Coefficient - 250 Grains
G1 Ballistic Coefficient - 300 Grains


Customer Reviews

Based on 10 reviews
Best bullet I’ve ever used

These are the only bullets I’ve used for years in my Savage!! Best ever and so accurate! Will they ever be available again because I’m not sure what will shoot the same!!

Best .50 cal bullet out there

I've been using these as my primary hunting bullet for nearly 2 decades, even in gun season as OH didn't allow rifles. They are deadly. Expand to crazy diameters with a magnum load. I have never had a deer take more than a few steps with these bullets. They expand very well and dump all their energy. I always find the bullet in the back side ribs or shoulder. I run the 250 gr bullets over 3 50/50 pyrodrx pellets in a Knight Original DISC. Shoots clover leaf groups at 100 yards. They are pricey but perform very well.

Here's some up to date news

October 22nd 2022 Pennsylvania hunt Last day of season after holding out on some smaller deer all week and some really sucky weather finally left loose but cold saw some deer coming up to a draw in a field led doe was was what I was looking for launched a 250 grain Barnes expander after the smoke cleared I saw nothing took a walk and 15 feet she was laying well fellers the Barnes bullet did the job again and yes I lost count on how many deer this 250 expander has harvest ed but this old dude knows what work for him just in case I'll give you my load you know the bullet it's riding in a harvester crushrib sabot with 80 grains weighed of blackhorn 209 there's the killer

Brian D.
Accurate Ammo

Once sighted in I am able to shoot 1 inch groups at fifty yards fairly easy. This is with a scope and bench rest of course. I also noticed that the bullets do retain there mass when shot directly into wood. I haven't had the chance to hunt with this ammo yet, but I was impressed with it. They are consistently precise rather fired with 100 gr. Pyrodex pellets or 100 gr. White hots. I have had some different 20 gauge sabot slugs shoot inconsistently in the past even through a rifled barrel. So far, I feel these Barnes Expander hollow point muzzle-loading sabots would easily compare to, if not out shoot the best of the 20 gauge sabots on the market.

Charles A.
Barnes expander experience

I was sceptical going back with a bullet that needs a sabot with the hard to load issue. Lots of hunters are finding fragments of bullets in the animal that needed multiple shots. Barnes expander do not need multiple shots of the hunter does his job! They perform just like promised. Hit the kill zone and any big game will not walk more than 15 yards. 6x6 Bull ELK in the freezer!