Uploaded February 2026 | Updated September 2026, 1 week ago
Full Story: ultimatereloader.com/88ww
UR on RUMBLE: rumble.com/ultimatereloader
UR on Patreon: patreon.com/ultimatereloader
Sierra Bullets made a big splash with the launch of their new 6mm 105-Grain MatchKing HPBT bullet this year, building on the success of their 107-grain SMK. We put this bullet to the test, both on the range and in the lab, with astounding results from 6mm ARC, 6mm x 47 Lapua, and 6mm Creedmoor!
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Ultimate Reloader LLC / gavintoobe Disclaimer:
You alone are responsible for the safety of yourself and your property.
Check local and state laws before undertaking any activity involving possessing, transporting, and shooting firearms. Check local and state laws before attempting to load ammunition or perform any modifications to a firearm. Always abide by the law. Always practice gun safety.
The content on this channel (including videos, ammunition reloading data, technical data, comments, and any other information contained within) is for demonstration purposes only.
Do not attempt any of the processes or procedures shown or described in this video or on this YouTube channel (gavintoobe).
Any reloading data supplied on this YouTube channel (gavintoobe) or in this video, including any comments from viewers and readers must be assumed to be in error.
Always consult at least three sources of manufacturer's ammunition reloading data before reloading your own ammunition.
Do not attempt to repair or modify any firearms based on information found on this YouTube channel or in this video.
Gunsmithing procedures should only be performed only by a licensed gunsmith.
Ultimate Reloader, LLC can not be held liable for any harm caused to any individual or any personal property related to activities, procedures, techniques, or practices described in whole or part on this YouTube channel (gavintoobe) or in this video.
By watching this video in whole or in part, you agree that you alone are solely responsible for your own safety and property as it pertains to activities, procedures, techniques, or practices described in whole or part on this YouTube channel (gavintoobe) or in this video.
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Ultimate Reloader LLC / gavintoobe Material Connection Notice:
The following Ultimate Reloader partners are featured in this video:
- Sierra
- Peterson
- Lapua
- Woox
- Hodgdon
- Vihtavuori
Ultimate Reloader partnerships involve one or more of the following:
Product supplied for evaluation + testing + features in videos/articles, paid advertising and promotions, engineering and product development services, scientific testing and evaluation, external media production and related marketing services.
Ultimate Reloader LLC is committed to publishing subjective and data-driven information+insights related to products whether it be favorable or unfavorable or both.
For more information about Ultimate Reloader partnerships, please visit: ultimatereloader.com/about
Full Story: ultimatereloader.com/88ww
UR on RUMBLE: rumble.com/ultimatereloader
UR on Patreon: patreon.com/ultimatereloader
Sierra Bullets made a big splash with the launch of their new 6mm 105-Grain MatchKing HPBT bullet this year, building on the success of their 107-grain SMK. We put this bullet to the test, both on the range and in the lab, with astounding results from 6mm ARC, 6mm x 47 Lapua, and 6mm Creedmoor!
-------------------------------------------
Ultimate Reloader LLC / gavintoobe Disclaimer:
You alone are responsible for the safety of yourself and your property.
Check local and state laws before undertaking any activity involving possessing, transporting, and shooting firearms. Check local and state laws before attempting to load ammunition or perform any modifications to a firearm. Always abide by the law. Always practice gun safety.
The content on this channel (including videos, ammunition reloading data, technical data, comments, and any other information contained within) is for demonstration purposes only.
Do not attempt any of the processes or procedures shown or described in this video or on this YouTube channel (gavintoobe).
Any reloading data supplied on this YouTube channel (gavintoobe) or in this video, including any comments from viewers and readers must be assumed to be in error.
Always consult at least three sources of manufacturer's ammunition reloading data before reloading your own ammunition.
Do not attempt to repair or modify any firearms based on information found on this YouTube channel or in this video.
Gunsmithing procedures should only be performed only by a licensed gunsmith.
Ultimate Reloader, LLC can not be held liable for any harm caused to any individual or any personal property related to activities, procedures, techniques, or practices described in whole or part on this YouTube channel (gavintoobe) or in this video.
By watching this video in whole or in part, you agree that you alone are solely responsible for your own safety and property as it pertains to activities, procedures, techniques, or practices described in whole or part on this YouTube channel (gavintoobe) or in this video.
-------------------------------------------
Ultimate Reloader LLC / gavintoobe Material Connection Notice:
The following Ultimate Reloader partners are featured in this video:
- Sierra
- Peterson
- Lapua
- Woox
- Hodgdon
- Vihtavuori
Ultimate Reloader partnerships involve one or more of the following:
Product supplied for evaluation + testing + features in videos/articles, paid advertising and promotions, engineering and product development services, scientific testing and evaluation, external media production and related marketing services.
Ultimate Reloader LLC is committed to publishing subjective and data-driven information+insights related to products whether it be favorable or unfavorable or both.
For more information about Ultimate Reloader partnerships, please visit: ultimatereloader.com/about
