Hornady 153 A-Tips with H4350 in 6.5 CM

CanMike · Oct 3, 2025

So I got these to do some testing as I was developing some loads for another bullet. So far I am shocked with the results..

I didn't even shoot these for accuracy just to get initial powder / velocity correlations.

Lapua Virgin Brass (Small) - 24" Cadex Barrel
CCI 450 Primers
H4350 Powder
330 Yards
0.015-0.017 Off the LANDS loaded to about 2.90 OAL

The group in total is 0.5 MOA (8 shots) with charge weights from 40.7 to 41.5. If you take 40.7 and 41.0 (4 shots total) its 0.22 MOA at 330 Yards.

Definitely have to load up some more around 41.0 and try. Clearly the Barrel likes these. Made my Lapua 144s showing 0.5MOA look horrible. LOL

Mike

Kickin45 · Oct 3, 2025

Keep going up until you find pressure.
Loading that long, you may be able to fit around 42 grains.

CanMike · Sunday at 9:11 AM

At 41.5 I am pretty close to touching powder with bullet. 42.0 would probably be near max. Can load a couple up and try. This is also virgin brass so a bit smaller volume.

Mike

Rob01 · Sunday at 9:58 AM

I run 40.6grns of H4350 in Hornady brass with the 153 ATip and get 2680-90fps in my 28” barrel. Not sure how much more I would push it above where you are at. If you are getting good accuracy a few more FPS won’t make much difference.

MikeMiller · Sunday at 10:16 AM

Rob do you find any advantage over the 147’s? I run the 147’s in both gas and bolt guns. Would the 153 work well in 18” gas guns?

My load is N550 and pushed around 2600 fps through the 18” gas gun

Rob01 · Sunday at 10:31 AM

MikeMiller said:
Rob do you find any advantage over the 147’s? I run the 147’s in both gas and bolt guns. Would the 153 work well in 18” gas guns?

My load is N550 and pushed around 2600 fps through the 18” gas gun

Never put them back to back to see honestly. Both have been accurate for me though.

I wouldn’t think they would be a good choice in a gas gun though as they are a longer bullet so getting them in a mag would seat them pretty deep in the case. I’d stick with the 147 if it’s working for you in the gas gun.

CanMike · Sunday at 11:14 AM

Ya I am happy with 2680-2700. I think I’ll load 41.2 and shoot a bunch and see and use these in my 1000 yard comp in a few weeks if they continue to group like above.

Initially was going to use the Lapua 144s.

Mike

CanMike · Monday at 11:31 AM

I measure out 20 40.0 grain and 10 40.2 Grain so will see how they shoot in the next couple days.. Will be cooler this week so speed may be down a touch .

Mike

CanisLupus · 2025-10-10T14:28:32-0400

CanMike said:
I measure out 20 40.0 grain and 10 40.2 Grain so will see how they shoot in the next couple days.. Will be cooler this week so speed may be down a touch .

Mike

Interested in how they perform for you. what twist rate are you running with the 153s?

Hickswr · 2025-10-10T14:40:57-0400

Congrats on finding bullets your barrel likes.

And proving yet again that “nodes” are fictional characters.

Rob01 · 2025-10-10T14:55:28-0400

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