Same situation here, I just ordered 120 grain Sierra Pro Hunter bullets from Powder Valley for grandson. Looks like BenchMark may be a light charge according to Sierra #5 manual.
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With the 140 and 160 ABs I get good accuracy and decent speeds with H4831sc. The 175 Interlocks do well with IMR 7828 out of my 7wsm. I haven't found a need to hotrod this rifle though. Good luck it's a fun round to work up.
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My experience with my only Lapua purchase, after a single firing I noticed what I would describe as lamination on 3 cases. Contacted representative and sent pics, he requested I return all 200 pcs for replacement. Which involved demilling and soaking unfired primers. The payoff? 200 pcs of new...
Nice looking set up for her. I can't help noticing the mounts in the background. You've done some fun hunting it seems.
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My go to for 7mm wsm is the 140 AB, though for fun I do have a load for the 160 AB I just haven't found the need for it yet on Michigan white tails. Had some 175 Interlocks on the bench and time on my hands and they get along with 7828 sec just fine.
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It's a shooter all right, I've had good luck with the RDFs though H4350 was not to be had when I worked up my 260 Rem. load. Velocities?
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I've been happy with the Burris Short Mags that last I looked they moved to the Timberline line. Mine are 4.5-14×42 I believe, good glass for the money. Compact and lightweight.
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