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Speer has data for 06 & 300 Win with their 180 bullets. Gives you a starting point.

22-250 with an 8" twist.

:mrgreen: FOTIS Surprised actually. Most of the ones I have used have come apart. Might this be your use of them at warp speed. :shock:

What powder? If ball 215 or 9 1/2M also for compressed loads. I have used WLR primers in a 270 from -5 to 80 IMR powders and R-26.

Since he has an all around rifle already he might look a specialty round. 257 Weatherby on the smaller end or 340 Weatherby on the upper end. I would vote for the 257 Bee as it could be used for anything out west.

From Nosler Designed to provide a shorter COAL in cartridges such as the 257 Roberts, these have a shorter ogive curve and a slightly more rounded profile than the standard Nosler 25 Cal 115gr partition.

I have some 300 SAUM cases I have been using for over 15 yrs. 10 loadings and still no ring or no loose primer pockets. I have annealed 2 or 3 times.

I would buy it and put it on the shelf for another rifle or for when you have a problem.

What are your pressure signs?

I was loading some 223s a while back with Nosler 55gr. BT and had trouble seating one. Upon inspection I found it to be a 55 gr. 6mm BT.

From load data Warning! Notes: The .223 Remington barrel is 16.1 inches. (Handloader #276 - Feb, 2012) Be Alert: Publisher cannot be responsible for errors in published load data. Wt. Bullet Powder Manufacturer Powder Charge Velocity (FPS) 50 Alliant AR-Comp 25.2 2918 Remarks:

Quickload is a guess of what happens when you pull the trigger and a ladder test is what actually happens.

Here is some 338LM load data. https://www.snipershide.com/shooting/th ... m.6252692/

How is the brass. Was it neck turned, weight sorted or any other treatment? Also have you checked the concentricity of the loaded ammo? I would also do a deep clean of the barrel, I use a foaming bore cleaner.

Just get a Tikka mag made for 300 WSM.

And yet you can buy Tikka's in 300 WSM and 270 WSM. This leads me to think the 7mm WSM will feed just fine.

I would try seating the bullets shorter. AB like a running start.

What is the goal. 3100 fps is Noslers max speed. I would give R-26 a go, if you have any, or R-23.

My 338-06 Likes 60 gr. 4451 with 225 partitions or sierras. These have the same poi so I practice with the sierra bullets. About 2650 fps.

168 E-Tip works very well on elk and 168 TTSX. If one of these shoot well in your rifle I would look no further.