Frequently Asked Questions

Most Asked Questions:[hide]

What do I need to do to start using Thor Bullets?

We recommend getting started with a Thor Sizing Pack, regardless of what make and model you have. This will provide you with enough information to know what Thor projectile is right for your muzzleloader.

What are Thor bullets made of?

Thor bullets are 100% copper (Bullets may have a plastic ballistic tip).

Do Thor bullets have a lead core?

No, Thor bullets are made of 100% copper (Bullets may have a plastic ballistic tip).

Why should I use Thor Hammer specific diameter bullets?

Tolerances for muzzleloader barrels can range between .499” and .504” and still be considered a .50 caliber. This is why two identical make and model muzzleloaders may perform better with different bullets. The Thor Hammer bullets will give you a personalized gas seal as long as you are getting the diameter that is matched to your gun!

What if my sizing bullet doesn’t leave rifling marks?

Rifling marks are not necessarily an indicator of bullet fit. If the bullet loads well, but doesn’t leave any rifling marks, then it should still work great. Use your discretion when sizing.

What if my sizing bullet uses less than 10 pounds of pressure to load?

As long as your bullet doesn’t ‘free fall’ down the barrel, then it should be the proper fit! Keep in mind that subsequent bullets will load even tighter after powder fouling.

How do I know what 10-30 lbs of pressure feels like, as stated on my sizing pack instructions?

10-30 lbs of pressure should feel like you are loading a saboted bullet (bullet with plastic gas seal). This is a general range of force that we recommend. You may find that your bullet loads with less than 10 lbs or more than 30 lbs of force. We recommend that you choose what feels good for you. As long as your bullet has ‘some’ force when loading it should be able to engage the rifling and give you a proper gas seal.

What bore diameter do you recommend for my CVA muzzleloader?

We recommend using the Thor Bullet Sizing Pack to size the bore of all muzzleloaders, regardless of the make and model. Each CVA barrel diameter is unique and there is no absolute pattern that is brand specific.

What bore diameter do you recommend for my Traditions muzzleloader?

We recommend using the Thor Bullet Sizing Pack to size the bore of all muzzleloaders, regardless of the make and model. Each Traditions barrel diameter is unique and there is no absolute pattern that is brand specific.

What bore diameter do you recommend for my Thompson Center (T/C) muzzleloader?

We recommend using the Thor Bullet Sizing Pack to size the bore of all muzzleloaders, regardless of the make and model. Each T/C barrel diameter is unique and there is no absolute pattern that is brand specific.

Should I use Hollow Points or Ballistic Tips?

We recommend the ballistic tipped bullets in most states outside of Oregon. Ballistic tips generally have better performance than a hollow point in ballistic testing. Please check your states bullet regulations regularly as it is your responsibility to know that info. Oregon statutes do not allow for polymer tipped bullets. We offer hollow point bullets (247-grain & 297-grain) for Oregon hunters.

What if the .500” sizing bullet is too tight?

If the .500” sizing bullet is too tight for your barrel, we do offer a .499” option that will fit your bore! The .499” diameter Hammer Bullets are only available through Thorbullets.com.

What if one sizing bullet feels too loose and the next sizing bullet feels too tight? What if I am ‘in-between’ diameters?

We recommend choosing the size of the looser fitting diameter bullet. As long as your bullet doesn’t ‘free fall’ down the barrel, then it will still engage the rifling and give you the proper gas seal. Keep in mind that subsequent bullets will load tighter after powder fouling.

Are Thor Hammer bullets available in half-sizes?

No, Thor bullets are only available in .499”, .500”, .501”, .502”, .503” & One-Size Bullets only.

Can I use Thor Bullets in Colorado?

Yes, as of May 2023, Thor bullets are legal to use during Colorado muzzleloader seasons. We always recommend that you refer to your state’s rules and regulations.

Can I use Thor Bullets in Oregon?

Yes, as of May 2023, Thor bullets are legal to use in Oregon muzzleloader seasons, as long as you are using the hollow point variants (247 & 297 grain bullets). Oregon regulations prohibit plastic to be used on any muzzleloader bullets. We always recommend that you refer to your state’s rules and regulations.

Can I use Thor Bullets in Idaho?

Yes, as of June 2024, Thor bullets are legal to use during Idaho muzzleloader seasons. Idaho regulations have been updated to allow other alloys, including copper! We always recommend that you refer to your state’s rules and regulations.

Can I use Thor Bullets in California?

Yes, as of May 2023, Thor bullets are legal to use during California muzzleloader seasons. Thor bullets are We always recommend that you refer to your state’s rules and regulations.

We recommend 297 or 300-grain bullets for elk-sized game and for longer ranged shots.

We recommend 247 or 250-grain bullets for deer-sized game, including mule deer and whitetail deer. (The 297-grain and 300-grain bullets will still perform great as well.)

Can I use Thor bullets in the Remington 700 UML?

Yes, you can use Thor bullets in the Remington 700 UML. Due to the Remington 700 requiring a tighter gas seal, we recommend the Thor Lightning series.

Can I use Thor bullets in a smokeless muzzleloader?

Yes, you can use Thor bullets in a smokeless muzzleloader.

Do Thor bullets need to be lubed?

No, Thor bullets do not need to be lubed and we do not recommend that you lube them.

How often do I need to clean between shots?

While we recommend cleaning between each shot, you will ultimately have to find your own routine. If a follow up shot is difficult to load, then you should probably swab and clean the barrel. For example, if your third shot is hard to load, then clean after every second shot.
NOTE: Some powders or propellants may be cleaner burning than others.

Why does my Thor bullet sizing pack have different colors than what it says on the sizing video?

We updated the Thor Bullet Sizing Pack colors to the following:

  • Colorless - .500”
  • Green - .501”
  • Black - .502”
  • Blue - .503”

Early videos and instructions did feature a ‘Red’ bullet, that has been swapped out for the new ‘Green’ color.

I received a Thor bullet that is rattling?

The rattling is a byproduct of the manufacturing process that does occur from time to time. Through extensive testing, these bullets will perform and group the same and may be a few grains heavier.

What is the difference between the Thor Hammer and the Lightning bullets?

Thor Hammer bullets are sized to specific diameters ranging from .499” to .503”. Thor Lightning bullets have an undersized bullet in order to accommodate all smaller bore diameters and an oversized base to accommodate all larger diameter bores.

Do Thor bullets come in a .45 Caliber option?

As of August 2024, we have experienced a lot of manufacturer slowdowns in regards to a .45 caliber option. While we are hopeful to provide a .45 caliber option in the future, we have no definitive time frame. We ask all customers to keep an eye on the website for updates.

What if I cannot find a diameter or style that fits my rifle?

It is extremely rare to find a muzzleloader that doesn’t work well with Thor bullets. We are committed to helping you find the correct diameter bullet that works for your muzzleloader. However, in the event that it does happen, please let us know and we can assist you with a return.

What if I am missing items from my order?

Please contact us as soon as possible either by phone or email. We will make sure that you get your entire order and will expedite replacements to you as needed. Call us at 855 281 9000 or email us at sales@thorbullets.com.

Do you have a Thor dealer in my area?

Please check out our Thor Dealer map on the link below to see if you have any Thor dealers in your area: Thor Dealer Map. Orders placed on Thorbullets.com ship directly to your door from our warehouse.