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Originally Posted by Glenn L
I just built a 30 BR with a 8 twist barrel on a Rem. 700. I shoots 168 SMK's @ 2500, and in just about one hole @ 100 yds. What I would like, is to come up with a subsonic load. Do you use a filler of some type with the reduced loads? I tried some 2400, 5744, and 2015 today,I could get it to 1150 fps but some times the vel. would be half of that. I weighed all charges. It seems that the 302 Whisper is about the same. I would be verry thankfull for any help.I would like to shoot 180- 220 gr. bullets subsonic. I am new to this forum. Thanks Glenn
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Glenn , I just finished an XP-100 barrel in 30 BR using the "robinette" reamer last weekend. After throating it for 220's my plan is to start at around 11 grains of SR 4759 as soon as I get by Sportsmans Warehouse to pick some up. Trail Boss would also one of my choices .
The case has almost 70% of the volume of a 308 by my calculations.