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Win 300 BLK 200 Gr Open Tip Range HP

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  • April 15, 2023 at 10:06 pm #488058
    david_mast
    Participant

    Has anyone began load dev on these??? Not a lot of published data and no data for 200Gr( not that there is a big difference between 198 and 210).
    I was surfing the Net to see if anyone cracked open a Winchester Super Suppressed 300 Blackout 200 Grain Open Tip Range and sussed out what the factory charge is, but no joy. H110, CFEblk, etc. seems to be default powders but they are kind of optimized for supers and say they work for subs(but we all know how that usually goes). Any thoughts?????

    May 16, 2023 at 4:43 pm #493504
    Brendan Driscoll
    Participant

    Are these the Winchester OT that RMR had, I bought 1k and been looking for some load development for my 7.5 1:5 suppressed AR with no luck….. have you had a chance to develop yet?

    June 19, 2023 at 3:56 pm #495247
    david_mast
    Participant

    Not really. I came across an interesting post while I was looking for some leads …. https://www.300blktalk.com/forum/viewtopic.php?t=91582
    Since I have some LT-32 that I don’t know what to do with, this caught my eye. I have made some test loads off of it, but I have not had a chance to get out with the chrono. One thing I have noticed in looking at published data, there is none for 200 gr. That being said…. the loads for 190 and 208 are practically identical or within the error range of a volumetric charger

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