Thread: Another 260 Improved

Originally Posted by Mathias

@Uplandstalker any progress with your loads?

Nice speeds in that lot.

Originally Posted by Uplandstalker

Nice speeds in that lot.

Yeah but we know speed is not always the answer. I'm hoping for a bit of your accuracy in exchange for some speed. Nice work with yours, good that the short throat reamer has worked well for OAL.

Originally Posted by Mathias

Yeah but we know speed is not always the answer. I'm hoping for a bit of your accuracy in exchange for some speed. Nice work with yours, good that the short throat reamer has worked well for OAL.

Why didnt you throat yours to suit the long action from the start?

You guys should try Hodgdon Superformance it works well in my .260AI

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Originally Posted by veitnamcam

Why didnt you throat yours to suit the long action from the start?

Good point, but when I got the reamer cut I owned a Sako M591 medium action and was going to be limited on OAL with that gun. However it went down the road and I ended up with a Tikka for the project. The Tikka is lighter, stainless and has a few more bits available than the old Sako.

Originally Posted by 25/08IMP

You guys should try Hodgdon Superformance it works well in my .260AI

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Yeah, I've heard that could be a good one to try. Some are having good results with N560 too. Be nice to be able to buy "sample powder quantities" aye!

I ran superformance in my .260 ackley lapua brass 22 inch hardy barrel hornady 143's and 2950 fps it's definitely worth a go

Originally Posted by Mathias

Yeah, I've heard that could be a good one to try. Some are having good results with N560 too. Be nice to be able to buy "sample powder quantities" aye!

Where are you based?

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Originally Posted by 25/08IMP

Where are you based?

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Mid Canterbury

Originally Posted by Mathias

Yeah, I've heard that could be a good one to try. Some are having good results with N560 too. Be nice to be able to buy "sample powder quantities" aye!

I was after N560, but was hard to come by at the time. I understand that Richard Wilhelm has it in Stock now. But in 1kg lots, around $180/kg. It's a lot of money for something that "might" me better.

Done a bit more shooting over the weekend after getting the throat of the 260Imp lengthened by about 4.5mm to make use of the Tikka long action etc.
Found that I needed another 0.5gr RL17 to reach the same velocities I had with the short throat. Nice to seat the 143gr ELD-X level with the base of the neck. Being a typical velocity hound, I wound it up to see what I could ring out of the 24.5" barrel and achieved a highest reading of 3025fps, though the average of the 5 shots was 3009fps. Pressure was way too high to use this as a go to load, the cases were getting slammed big time. Accuracy was excellent even at that speed with the 5 shots grouping around 1/2 moa. I will go back a grain (2940fps) and work around that. I think that will be a lot safer for the summer temps coming up.

Here's a pix of the group. Patched holes are just me dicking with scope after the group to get the right zero.



Bugger, the pix has loaded flopped on its side

Interesting article I read a while ago about the newish RL26 & 260 Imp.
260 Terminator: Initial Review – Panhandle Precision
I see there was a spin off of this same one in the NZ Hunter mag.

Don't forget Shawns 260 Terminator (yep they stole my name ) has a +P throat that increases velocity over a standard throat

Originally Posted by Kiwi Greg

Don't forget Shawns 260 Terminator (yep they stole my name ) has a +P throat that increases velocity over a standard throat

Yep, some sort of step I believe. Would like to see a diagram so I understand it more. Yeah I had a laugh at the Terminator tag

Originally Posted by Uplandstalker

I was after N560, but was hard to come by at the time. I understand that Richard Wilhelm has it in Stock now. But in 1kg lots, around $180/kg. It's a lot of money for something that "might" me better.

Pm me your Addy. I have some N560 lying around you can try.

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