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Thor™ Bullets Sizing Pack




Thor™ Hammer Bullets are sized to be bore specific. The customer will have to size their bore using one of our sizing packs.


The Thor™ Bullets are high performance, full-bore muzzleloading bullets. The .50 caliber ballistic tip bullets feature a 100% copper construction and are manufactured by Barnes™ using their X Bullet® platform along with their proven expansion technology. The Thor™ Bullet is proven to be extremely accurate at long ranges, while providing lethal expansion on deer and elk-sized game. 


The Thor™ Bullet's hollow base expands when the powder goes off, both gripping the rifling and sealing the bore. These bullets actually shoot 75-100 FPS faster than a Powerbelt, due to their superb sealing power. If it is a quality conical you are looking for, that won’t fragment into a million pieces, the Thor™ Bullet is the way to go.


**** Before purchasing your first pack of Thor™ Bullets, you will first need to order a test sizing pack of 4 bullets of diameters of .500”, .501”. .502” and .503” that allows you to correctly size your bore. It is important that you start with the smallest diameter Thor™ Bullet, and work your way up in diameter size until you find the proper fitting Thor™ Bullet for your muzzleloader. While manufacturers have similar bore diameters, they will vary .001”-.002" from gun to gun, so it is extremely important to correctly size your bore to determine which diameter works best for you. If you order a sizing pack and none of the sizes fit your bore, please reach out to our online partners muzzle-loaders.com, as they have some .499" and .504" available.


To determine which bullet is best for your muzzleloader, start with an empty rifle, remove the breechplug and slide in the .500 bullet. If it slips easily down the bore, you then try the .501 and so on.  When you find the diameter that requires about 20/30 ft./lbs. of force to push down the barrel (that is comparable to the resistance you get loading a standard sabot bullet), you have found the correct size for your rifle.


Orders are normally shipped the same day or next business day. Depending on the time of day that the order is received, the order will go out the next business day.


We stand behind our products, thus we offer a 100% satisfaction guarantee policy. In the unlikely event that you are unable to sell your Thor™ products, simply return the products to us for a full refund.

Thor Bullets Sizing Pack - .500" to .503"

Before purchasing your first pack of Thor™ Bullets, you will first need to order a test sizing pack


.50 Caliber




Ballistic Tip

Bore Size

.500"- .503"


4 Pack


Select Bullets


Thor, Inc.

Phone: 855-281-9000

Email: sales@thorbullets.com

Thor™ Bullets is a Trademark of Thor, Inc. © 2020. All Rights Reserved

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