I actually don’t know, it’s not well addressed in the rules. My gut feeling is that you would not have to make PF w/ factory ammo
If you do, you’re going to be cutting it pretty close with any standard off the shelf ammunition. I believe Eagle Eye runs hot, I assume that counts as factory ammo
2025 SEASON NRL HUNTER RULES AND REGULATIONSDOWNLOAD RULES PDF HEREThe NRL HUNTER is an evolving competition series which intends to offer participants an educational and exciting means to practice shooting in unknown hunting-like conditions. The following rules and regulations govern the...
nrlhunter.org
2. Open Light Division is any rifle configuration up to a 12 lbs. maximum.
a. No restrictions on gear, equipment attached, build, or configuration, as long as it is under the prescribed weight for this division.
b. Minimum Power Factor (PF) is 380,000. The Bullet Weight in (gr) multiplied by Muzzle Velocity in (fps). For example, 143 gr @ 2670 fps = 381,810 and makes the minimum. With a Muzzle Velocity maximum of 3275 fps 6mm with 115gr will not be able to make the minimum PF.
c. Use of factory sealed box ammunition, .264” (6.5mm) and 130gr or above, is not subject to meeting the PF requirement under this section, however PF will be used in the case of a tie.
3. Open Heavy Division is any rifle configuration over 12lbs and up to a 16 lbs. maximum.
a. No restrictions on gear, equipment attached, build, or configuration, as long as it is under the prescribed weight for this division.
b. Minimum Power Factor (PF) is 380,000. The Bullet Weight in (gr) multiplied by Muzzle Velocity in (fps). For example, 143 gr @ 2670 fps = 381,810 and makes the minimum. With a Muzzle Velocity maximum of 3275 fps 6mm with 115gr will not be able to make the minimum PF.
c. Use of factory sealed box ammunition, .264” (6.5mm) and 130gr or above, is not subject to meeting the PF requirement under this section, however PF will be used in the case of a tie.
I have used the 130gr Norma 6.5 Creedmoor in my TRG. My rifle loves that ammo - easily 1/2" or less 5-round groups at 100yd consistently. Easy button out to 850 yards (the furthest my local range goes). Velocity is right at around 2800fps on average. I would love to try some of the 143gr stuff.