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Thanks grandpamac, this confirms my thinking. Especially as my once-fired brass is a bit shorter than the SAAMI spec trim length for some reason. I'm still shooting the PowerShoks to build up a...

Yeah, had watched that a while ago, hence the plan to start with around 20 - 40 thou jump to find the best charge and then worry about seating depth after that.

First photo (left to right): Fusion, Precision Hunter and LRAB at mag length.

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Second photo: seating depth to achieve SAAMI spec.

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I think my magazine must be around 0.025”...

Thanks all - seems to be a pretty clear consensus there. Yes grandpamac, I noticed the projectile was in pretty deep at mag length and wondered about case capacity and also the problem discussed in...

Starting out loading for my Model 7 7mmWSM. Projectile of choice is 150gr. ABLR.

Measured the max. cartridge base to ogive length for my chamber using the split-neck case method and got 2.305”....