Need data for .224 Hornady #2279 & H335 powder

[Trekbike]

My Hornady loading manual doesn't list info for their 75g BTHP #2279.   Looking specifically for info on this bullet with H335 powder.   Any help would be appreciated until I can buy a newer manual.  

[z0mbies fear me]

Sorry. Mine is the seventh edition. It lists the bullet but no H-335 data.

Edited March 28, 2014 by z0mbies fear me

[Trekbike]

Thanks for trying. I wonder if the H335 is not a good powder for that bullet weight?

[R_Bert]

Lee Manual, for a 75 Gr jacketed, starts out at 21.0 gr H335 @  2.250" OAL.  max 23.0 gr.

[deadeye111]

The Lyman 49th Edition list the Hornady 75 grain A-Max #22792 as follows

starting load 22.5 grains of H335 2577 fps velocity and 37,000 Pressure C.U.P
Max load 25.1 grains of H335 2850 fps velocity and 52,000 C.U.P pressure

Hope that helps....

[Luke E.]

Here's what the Hodgdon web manual says,

 

[URL=http://s303.photobucket.com/user/lukeduke_03/media/b8f3922a-6037-4d22-8fca-ed6a6e8faa9d.jpg.html][/URL]

[Luke E.]

 Here's the link to the page if you want you change anything,

http://www.hodgdonreloading.com/data/rifle

[Trekbike]

Thanks for the feedback guys but this brings back up part of my original problem, or at least my perceived problem.  

 

The load data sited aren't for the # 2279 BTHP bullet but there might not be enough bullet length differences between all the styles of 75g bullets to matter regarding the pressures.   As in Luke's link they reference a "JLK VLD" style bullet which I have no idea what that stands for.    

 

Should I just not be concerned with bullet style and just load off the weight?    I know for 38 Special loads, the bullet style can make a big difference in pressures (for example a hollow base wadcutter vs. a semi-wadcutter of the same grain weight).

[R_Bert]

Thanks for the feedback guys but this brings back up part of my original problem, or at least my perceived problem.  

 

The load data sited aren't for the # 2279 BTHP bullet but there might not be enough bullet length differences between all the styles of 75g bullets to matter regarding the pressures.   As in Luke's link they reference a "JLK VLD" style bullet which I have no idea what that stands for.    

 

Should I just not be concerned with bullet style and just load off the weight?    I know for 38 Special loads, the bullet style can make a big difference in pressures (for example a hollow base wadcutter vs. a semi-wadcutter of the same grain weight).

well, it does give a baseline for doing your own load development from scratch. 

 

I have done that a time or two for projectiles with minimal available load data, or for a great deal on bulk mil-surp powder with cheap .

 bullets

 

On this one, reduce by another 15%, say ~18 grains, build a ladder-string on the chrono, and test 10-15 increasing-load rounds (max 23 gr)  for pressure signs and performance on a chrono. BE SURE to watch for squibs.

 

 

That said, personally, on this one, I would just keep an eye out for a better known/matched powder to match the projectile. There is plenty of good data out there on this one. Last time I loaded 22792, looks like I used Win748.

Edited March 28, 2014 by R_Bert

[joustin]

Varget is the best powder for the 75's from what I have seen, the CFE 223 is also not doing bad. H335 seems to be very inaccurate for anything over 69grs

[Trekbike]

[quote name="joustin" post="1131376" timestamp="1396055654"]Varget is the best powder for the 75's from what I have seen, the CFE 223 is also not doing bad. H335 seems to be very inaccurate for anything over 69grs[/quote] Thanks for the heads up. I have some CFE 223 that I might try instead of the H335.

[Luke E.]

 If you already have H335 then it won't hurt to do some testing and who knows, you may find something that works for you. The bullets weights are the same and if i'm not mistaken the bullet profile is similar so I personally wouldn't get to concerned with it. They are both 75gr bthp projectiles weren't they? I can't remember for sure. Assuming they are both bthp and you loaded them so that there was the same amount of the projectile base in the case you should be very very similar. I personally would start at 20-21gr and work up from there as I can't find anything to suggest that there's enough difference in bullet to cause any major issues provided the ogive isn't way closer or further from the base of the bullet than the other. I would just watch for pressure signs...

 

DISCLAIMER

Of course all this is just the way I would attack this deal and your mileage may vary so don't do anything you're not completely confident in. 

END DISCLAIMER ;)