28 Nosler & 130gn Absolute Hammers - powder suggestions?

[shinbone]

I know there is already a thread talking about loads for Absolute Hammers, but it is close to 100 pages long making it pretty hard to sift through for a specific bullet in a specific application . . .

Anyone have good luck with 130gn Absolute Hammers in a 28 Nosler, and have some powder choices to recommend?

 

[Dmagna]

The usual suspects will work fine, start with the max load for the 140 Nosler data and work up from there. Just remember 28 Nosler only going to make it to 600-800 rounds before you will need a new barrel.

 

[shinbone]

Thanks for the info, and, the sooner I get to put on a custom barrel, the better.

 

[Dmagna]

Thanks for the info, and, the sooner I get to put on a custom barrel, the better.

The absolutes usually start at the max load for their class. They are not for beginners. They also pressure out fast, so work up slow and in small increments. Maybe .3-.5 grains

 

[doug2080]

Be real careful! If my eyes aren't deceiving me does that box of hammers say .277 on it?

 

[shinbone]

Doug - yes, it does, but the .277 was crossed out because the box was mislabeled. The bullets mic at .284.

 

[Koda_]

Anyone have good luck with 130gn Absolute Hammers in a 28 Nosler, and have some powder choices to recommend?

I will be working up a handload for a 280AI with the 140g Absolute and after much digging around the Absolute Hammer spreadsheet and and email to hammer I will be starting with H4350.

 

[doug2080]

Ahhh…10-4

 

[shinbone]

I think I'll start with Vihtavouri N560. I think the following makes sense, but anyone feel free to double check me:

The Vihtavouri website for the 7mm Weatherby (smaller case capacity than the 28 Nosler) shows a max load of 78.2 gn for 120 gn projectile, and a max load of 69.9 gn for a 160 grain projectile. Interpolating between the two would give a max load of 74.0 gn for 140 grain projectile. Since I'm working with a lighter bullet and in a larger case, 74.0 gn should be a pretty conservative place to start.

Anyone see any flaws in that reasoning?

 

[NW NM hunter]

Just an fyi at the start of the absolute hammer page you mentioned is a downloadable spreadsheet that is well put together and ordered based on all those posts. That being said I dont see any 130 AH out of a 28 Nosler but there are some 140 and 150 which may give you a starting point. It has also been a while since I downloaded it. If it is any help I was looking at trying the 130 or 140 out of a 280ai with H4350 based on some other people's experience getting 3200-3400fps.

 

[purpledragon]

Doug - yes, it does, but the .277 was crossed out because the box was mislabeled. The bullets mic at .284.

At the bands, bore size is .277 in a 7mm....

 

[kfreeze]

I think I'll start with Vihtavouri N560. I think the following makes sense, but anyone feel free to double check me:

The Vihtavouri website for the 7mm Weatherby (smaller case capacity than the 28 Nosler) shows a max load of 78.2 gn for 120 gn projectile, and a max load of 69.9 gn for a 160 grain projectile. Interpolating between the two would give a max load of 74.0 gn for 140 grain projectile. Since I'm working with a lighter bullet and in a larger case, 74.0 gn should be a pretty conservative place to start.

Anyone see any flaws in that reasoning?

Yes. You didn't mention how the case fill is. Not keeping a big case like that full enough can lead to bad problems.

 

[PddPdd]

H4831SC is the one I use for that caliber and the 143 grain HH.

 

[cabelasken]

you will be surprised to see the top end velocity from your 28 Nos. I didn't expect what I found in my 280 AI as 3400 was easily gotten with the 130 AH and 3285 with the 140 AH. However, my groups shrank considerably when I loaded them to 3325 and 3200 respectively. Like 25% smaller groups. And I could tell the cases were in much better shape.