FWIW, the LRM setup that I have on the way was ordered with 16x-class projectiles in mind. For reasons that I can't explain (though perhaps have something to do with me eating paint chips as a kid), I have an obsession with 3k FPS muzzle velocity.

• 28 Nosler Ballistics Chart

My thinking was that good ol' 7mm RM might be able to get me there consistently, but 7 LRM will absolutely do it. And if I end up backing off the loads to keep from running them at warp speed, that'll just help extend barrel life.Plus, if push comes to shove, I'll (theoretically) still have the option to run the 18x-class projectiles to 3k FPS, as well.For the real heavies (190+), I'm planning on a 7mm-300 NM Improved.

28 Nosler Ballistics Chart

FWIW, the LRM setup that I have on the way was ordered with 16x-class projectiles in mind. For reasons that I can't explain (though perhaps have something to do with me eating paint chips as a kid), I have an obsession with 3k FPS muzzle velocity. My thinking was that good ol' 7mm RM might be able to get me there consistently, but 7 LRM will absolutely do it. And if I end up backing off the loads to keep from running them at warp speed, that'll just help extend barrel life.Plus, if push comes to shove, I'll (theoretically) still have the option to run the 18x-class projectiles to 3k FPS, as well.For the real heavies (190+), I'm planning on a 7mm-300 NM Improved. Just FYI before going 7-330NM, check out Long Range Hunting, there is a real long thread on there about the 28 Nosler with the 195 Bergers, just google it. Ryan Pierce is a gunsmith, Piercison Rifles, and he is the first person I saw that was playing with the extra freebore. He's loading the 195's to something like 3.730' COAL, well past SAAMI specs.

I love the 7mm WSM, but I wouldn't try to put one on a LA 06 based action. Efficient is such a crap term when it comes to cartridges. JD runs a 280 Ackely, while I run the 7mm WSM. I end up about 75-100FPS out in front of of the Ackley for about 3-5 grai.

And with RL33 hes getting 3140 fps (pretty easily), using Retumbo (for it's temp stability) drops it about 75 fps. And the accuracy with both powders was great as well.

Most people are getting sub half moa. I was looking at a 7-300 win, 7-300NM, and a few others. All the info in that thread made my decision for me. Nosler really hampered the performance of that round with the 3.340' COAL length. Once you get some freebore to seat the long, heavy bullets out, it really shines.28 Nosler also uses the standard magnum bolt face (.540) instead of the larger.585 bolt face of the Norma.

I have a 7 LRM in a DTA, I've been pretty happy with it. I've mostly shot 180 Berger's and its been really accurate. Before this barrel I had a 7 SAUM and I wasn't happy with how it fed from the DTA magazines. The LRM feeds perfectly, much better than the SAUM.I've been running the 180's between 2950 and 3050 with H-1000 and IMR 7977.

The brass really is the weak spot in the LRM, with the load mentioned the primer pockets are only lasting about 4-5 firings. I've heard that later runs of brass are much better but I don't have any first hand experience with those lots.I can say that the cartridge design is about perfect for the 7mm bore. You don't have to deal with the belt on the 7mm Remington or the rebated rim of the Nosler or RUM. The standard reamer from Gunwerks lets you seat the 180's in the sweet spot and will still leave you a little room in a DTA magazine.

If the brass was slighly better I think you could run the 180's at 3100 pretty comfortably. Overall, like I said, I'm pretty happy with it. I don't think I would trade it for a Nosler. Just FYI before going 7-330NM, check out Long Range Hunting, there is a real long thread on there about the 28 Nosler with the 195 Bergers, just google it. Ryan Pierce is a gunsmith, Piercison Rifles, and he is the first person I saw that was playing with the extra freebore. He's loading the 195's to something like 3.730' COAL, well past SAAMI specs.

And with RL33 hes getting 3140 fps (pretty easily), using Retumbo (for it's temp stability) drops it about 75 fps. And the accuracy with both powders was great as well. Most people are getting sub half moa. I was looking at a 7-300 win, 7-300NM, and a few others. All the info in that thread made my decision for me.

Nosler really hampered the performance of that round with the 3.340' COAL length. Once you get some freebore to seat the long, heavy bullets out, it really shines.28 Nosler also uses the standard magnum bolt face (.540) instead of the larger.585 bolt face of the Norma.

Of the three cartridges listed, my choice would be the.300 win mag. It has the range of bullet weights, velocity and power for just about any North American animal. It is also popular enough that should you need it, just about any Podunk store carries ammo for it.I killed most of my elk with a.30 Gibbs, which is an improved.30-06 that is close to.300 Win ballistics.The 7 mm Rem mag is a fine deer and elk cartridge, and I've easily killed elk with mine, but mine has been reduced to my back up foul weather rifle.

My favorite rifle now for elk and for international hunts is my.300 Weatherby (a.300 Win on steroids).