R19 and 260AI

[Rock Knocker]

I have a pound of R19 and i am using 45.5gr. to fireform my 260 brass.

But i havent been able to find ANY load data for R19 and 260AI, the only place i was able to find load data for the standard 260 was from the Alliant website and all they listed was 45.5gr. not even a high oR weak load, so i dont know where 45.5 even lays in the whole spectrum of 260 potential much less developing a Ackley load for a 260AI.

To me 46.5gr sounds like a pretty safe place to start my load developement with my fireformed brass but beside watching for high pressure signs where should be a good stopping point of where it just going to be too high?

Thanks for any help. I have read about H4350 being a great 260 powder but R19 usually being a little more accurate. I also have read about 260AI becomeing quite popular but i havent seen any kind of load data for it.

 

[bsekf]

Check the Nosler Manual. I have been using R19 for both 260 AI and 7-08 AI and it works fine.

 

[ultra25-06]

lyman 48th ed
260 rem
r19

85gr jhp, 46 start 51c max
95gr vmax, 46 start 51c max
100gr jhp, 45 start 50c max
120gr bt, 43 start 47.7c max
140gr amax, 38.3 start 42.5c max
142gr jhp, 41.5 start 46 max
160gr jrn, 39.5 start 44 max

Again these are from lymans 48th ed, for 260 rem. Use safe reloading practices.
Hope this helps.

 

[Rock Knocker]

bsekf, what are your loads for 260AI?? How much R19 are you using. If you dont want to get specific, im just looking for a general Minimum and Maximum range.

BTW, i am shooting 140gr. Noslers.

Thanks.

 

[Rock Knocker]

This 260AI seems like a really tight knit fraternaty, i cant get any information out of them. i cant wait to join once i finnish fire forming my brass tomarow.

 

[bsekf]

We are at our winter home and all my reloading information is in WNY. Just use 260 information, you should be able to go about 10% higher in the AI. My 7-08AI load with RL19 and a 150 Nosler is compressed.

Bill