I'm loading for a 338 Edge. Looking for recipes some of you have had good results with. I'm using RP 300 RUM brass necked up. I have both Retumbo and H1000 powder. My bullets are 300 grain Bergers and Cutting Edge 265 grain Lazers. Any info on associated seating depth and velocities is appreciated. Thanks...
- Thread starter Triple BB
- Start date
The following graph was my experience with Retumbo and WC860 in a .338 Edge (.338/.300 RUM) with 300gr projectiles (SMKs and Bergers) in a 25" barrel.
Red X is measured Retumbo speed
Blue X is measured WC860 speed
Red circles are Quickload-predicted speed with US869
Green line is Quickload pressure (right hand scale) with US869.
Retumbo gave sub-MOA groups at 200yds over a range of velocities through a factory Remington barrel (rechambered). I never ran the pressure up to max but the Retumbo velocities were very consistent. Bullets seated pretty close to the lands. Bergers were single-fed as their OAL exceeds magazine length. SMKs will fit the R700 mag box seated near the lands.
FWIW Berger has published "Edge" data:
bergerbullets.com
Red X is measured Retumbo speed
Blue X is measured WC860 speed
Red circles are Quickload-predicted speed with US869
Green line is Quickload pressure (right hand scale) with US869.
Retumbo gave sub-MOA groups at 200yds over a range of velocities through a factory Remington barrel (rechambered). I never ran the pressure up to max but the Retumbo velocities were very consistent. Bullets seated pretty close to the lands. Bergers were single-fed as their OAL exceeds magazine length. SMKs will fit the R700 mag box seated near the lands.
FWIW Berger has published "Edge" data:
338 Edge
Looking for Reloading Data for the 338 Edge and Berger Bullets? This data is now available to download for free from our website!
bergerbullets.com Don't trust my graph. The data's nearly 8 years old and probably a single shot for reference, not multi-shot averages. I don't remember my procedure and my notes were less complete back then. That said "nodes" are likely to be fairly broad given the case capacity. An entire grain of powder is only about 1% of the powder charge.
I believe there's likely quite a bit of load data from the people who created the wildcat: Defensive Edge.
I also believe they had a significant presence at the Long Range Hunting forum. Case in point.
I believe there's likely quite a bit of load data from the people who created the wildcat: Defensive Edge.
I also believe they had a significant presence at the Long Range Hunting forum. Case in point.
