I'm filling a big hole in my cartridge line up with a big boomer. I've been set on the 338 edge, but shopping around for dies and brass has been a little frustrating. This has got me thinking about opening up my options. I'm now debating between the 338 Rum, 338 Edge, 338 lapua and the 338 Norma. I will not be doing an improved chamber of any kind because I don't have time or a desire to fire form. Lapua brass and dies seem to be everywhere and no more expensive than any other. I was going to use a 300 Rum donor action so the bolt change for the lapua and NM factor in a little. What would you build?
I have had the lapua and the edge.
I recently built a 338 norma mag Imp
The edge and lapua can run out of magazine well space even with enlarged wyatt boxes with the heavier bullets. The hammer and cutting edge bullets are the cream of the crop but are longer because they are monolithic in structure. I like and have shot berger.
The 338 norma is known for its accuracy.
The norma case is shorter allowing you to seat the heavier bullets out further so that the don't extend down in the powder collum. This increases case capacity and cuts down in doughnut rings on brass necks.
The norma will produce velocities equal to the lapua and edge in a shorter case. The shortened case gives you almost 300th thousands more wiggle from for long heavy bullets. My lapua with 300 grain berger c.o.a.l 3.990. This is onto the powder colum. 338 norma same bullet can seat at 3.683.
Increase your volicity with the 338Imp.
Fire forming is simple
Quality brass from norma is available. Widdeon will make the dies.
My 338 norma has 24" barrel with carbon fiber barrel and stock with Ti action. Only weighs 5 .14 lbs. 6.89lbs with night force scope.
T-3 terminator muzzle break cuts recoil to less than 30-06
All three will shoot one ragged hole at 100 yards.
The edge was hardest to set up to shoot accurate
338 lapua easier to set up. Brass is good and available
Pics
1. Edge
2. Lapua
3. Norma
4. Exit wound splatter from 260grain hammer hunter bullet on mule deer at 490yards. Lungs in the ground.