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300wsm 165GMX Superformance range report.

 
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Old 08-22-2011, 12:22 AM
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Location: Bakersfield, Ca
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300wsm 165GMX Superformance range report.

Did some shooting this weekend, using 71gr of Hogdons Superformance powder, with 165gr gmx bullets. Pressure was high but not maxed out, I was getting 3/4moa out to 250yrds at 3320fps on average. Decent load but sd was almost 40fps. Gonna play with primers next weekend. Was using rem9-1/2m. Hopefully I can get a lil better. I was honestly impressed with the superformance powder. 3320fps with a 165 leadfree bullet out of a 24" barrel! Was looking all over for some MagPro but settled on superformance, im glad it worked out.
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Old 08-22-2011, 06:19 AM
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Re: 300wsm 165GMX Superformance range report.

That's interesting and Super Performance right there!!!!
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Old 09-07-2011, 10:52 PM
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Re: 300wsm 165GMX Superformance range report.

Well, finished up load development, Backed my load down and settled in at 68.5gr of Superformance for 3225fps average at 2.870COAL with a REM9 1/2m primer giving me an sd of 16fps and groups right at 3/4moa at 100yds. Theses bullets are under 1/2moa in my 700LSS 300RUM but my 300wsm doesn't seem to like them as much, i'm jumping them .200" in my rum but only .060" in my wsm. I would try to jump them farther in my wsm but don't have the case capacity to spare as it has a super short throat. But at $30 for 50 bullets and hunting season 2 weeks away im gonna call it good for now.
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