6 UM Reloading Thread

[Bater]

Curious if the tips are too pointed for hunting or if they will open on critters.

 

[BBob]

Curious if the tips are too pointed for hunting or if they will open on critters.

If they are like the other MRT’s out there my guess is they’ll be too small and will have to be cut back a little with a meplat uniformer and mby even drilled. That or nose ring them. I’m likely to order some and find out.

“The new MRT™ System takes consistency beyond the envelope. Every bullet nose is formed with optimal swage pressure determined by force instead of length. In addition to reducing a projectile’s drag by shrinking its meplat diameter, this technique takes the inherent meplat inconsistencies that plague OTM (Open Tip Match) style projectiles and brings them closer to the rotational axis.”

 

[noahkrantz]

85.5 LRHT, Impact velocity was 2892, Sample size is one, but it appears the tips open.

 

[BBob]

85.5 LRHT, Impact velocity was 2892, Sample size is one, but it appears the tips open.

And I also found info on the 144 LHRT's and they seem to be working. My comments above might not be valid Time will tell.

J

Post in thread 'Peterson 's Hunting - Small caliber article'

Jun 12, 2026

You’re looking at 3300fps with 68-71gr. of N570 from a 30” barrel with the proper freebore IMO.

I passed on the 153 TMK’s after seeing the bullet quality, long bearing surface and low BC in comparison. You won’t have any shortage of killing distance from a 147-156 at 3300fps lol.

I’ve been shooting a lot of 144 LRHT’s lately and they’re also an awesome bullet so far from what I can tell.

I can see why you would pass on the TMK, the bearing surface is actually oddly long. Not sure what they were thinking. I would love if someone came out with a 160-165gr shaped like a hybrid. I...

• Jeremiah_Johnston

 

[TradLife406]

Anyone getting stiff bolt with 66 n570? 40 degree? Had several last week that were stiff. Maybe the PBB chamber is a little different than my old benchmark.

 

[Woodsman44]

Slightly with 116’s but nothing I’m worried about. PVA barrels. I didn’t pressure test until 100 rounds on the barrel.


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[noahkrantz]

Getting ready to start load development on three 6um’s. What’s everyone’s preference for bullet choice? Dtac coated deep cut, 116tsmk? I also have a box of the new 120 Berger showing up in a week.

 

[TradLife406]

Getting ready to start load development on three 6um’s. What’s everyone’s preference for bullet choice? Dtac coated deep cut, 116tsmk? I also have a box of the new 120 Berger showing up in a week.

TMKs simply because I can source them easier. The Nose Ring DTacs did very well though for me last year.