.338 RUM Load data for 225 AB

[3006]

I can not find any 250 AB locally.
So I bought two boxes of 225 AB's.
Anyone have a good recipe?
Or should I say "JD338 what's your dope on this one?" CW

 

[SJB358]

I would bet JD has some data on them! They should be some screamers in your RUM. Scotty

 

[JD338]

3006

Here ya go....

338 RUM
225 gr AB
RL 25 96.0 grs
R-P Case
Federal GM215M primer

.567" at 100 yds.

JD338

 

[3006]

3006

Here ya go....

338 RUM
225 gr AB
RL 25 96.0 grs
R-P Case
Federal GM215M primer

.567" at 100 yds.

JD338

Thanks JD
What velocity are you getting? CW

 

[JD338]

I can't get to it now but close to 3100 fps.

JD338

 

[3006]

Thanks JD

 

[Thebear_78]

225gr AccuBond
103.0gr Retumbo
3140fps and great accuracy.

 

[str8meat]

92g 7828 in mine with fed 215 gm 2975 avg.

 

[SJB358]

Wow, those are some serious loads! Man, Hodgdon must be able to tell when you all are buying powder! Probably have to bring in a night crew! Just kidding, but that is very impressive. Scotty

 

[str8meat]

i wanna know what barrel lengths they are using for those numbers?

 

[Thebear_78]

27" + break

 

[Richracer1]

i wanna know what barrel lengths they are using for those numbers?

I'm getting 2970fps w/250AB and 3150fps w/200ET out of the std 26" XCR barrel.

 

[JD338]

My M700 LSS 338 RUM is a factory stock 26" barrel, no brake or porting.

JD338

 

[3006]

Went out to the range today

The 103 grs of Retumbo had a sticky bolt lift in my gun on one of the rounds, my crony measured 3321 fps..... yikes! That's mighty fast.

I loaded 96.0 grs of RL-25 to mag length and they did OK.
Very much improved when moved up to .02 off the lands. Very good load.

I will load up more of the RL-25 loads and go shoot several groups with it.
I will also download the Retumbo load by 2 grs and try it again. CW

 

[JD338]

3006

Looking good, you are almost there.

JD338

 

[3006]

I just loaded some 225 AB with 101 grs of Retumbo, the 103 loads went across the corny @ a little over 3300 FPS and had a shiney spot on the case head... maybe a squeak to much pressure. The velocity is what it is, I can not believe it is correct but I will try it again. CW

 

[JD338]

You are running too high a pressure and you will shorten the case life.
Your load with RL 25 at 3100 fps with low SD is the one to key in on. A 225 gr AB at 3100 fps with a single digit SD and .5 MOA will kill anything in NA, with the first shot.
I would save the Retumbo for the 250 gr loads. :wink:

JD338