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Rifles, Reloading, Optics, Equipment
Reloading
Subsonic 308 loads
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<blockquote data-quote="redbullitt" data-source="post: 1306356" data-attributes="member: 100987"><p>Your 308 will do fine with the 10 twist. Trail boss is going to be the easiest to work with. I usually wind up between 9 and 12 grains depending on bullet. Case fill is good enough. Never had much difference with drilled primer pockets, so I dont do it. Just not worth the effort in my experience. Your combination may be different of course. Primers do seem to matter; I have the best luck with the winchester LR. Small primer brass may be interesting to try, but I have not messed with it.</p><p></p><p>As to bullets, I suggest the flat nose 30 30 bullets in 150 or 170g. They have produced good results in multiple rifles. I have used the 160 FTX bullet a bit and it shows A LOT of potential. Will hopefully know more this summer when I get some time. The 180 RN is good as well. If you want to go heavier the 220 RN is excellent. I have not had any trouble stabilizing these from a 16.5 inch 10 twist 308. 1000 ft elevation, 30 to 90 degrees. Velocity between 950 to 1100 depending on rifle and load. I have had the best success with cast bullets in this application, though even if coated I try to stick to jacketed when suppressed. </p><p></p><p>Accuracy and precision can be tough here. You need to be on top of your form. That subsonic bullet spends more time in the bore than usual, so your mistakes will show up more than with a fast bullet. Your loading practices need to be top notch. 15 fps between shots WILL be a problem if you are shooting any distance at all.</p><p></p><p>Dont get discouraged. Keep working on it and you will eventually find a good loading. In my experience it is just tougher than usual. As far as groupings, I consider a CONSISTENT 2moa subsonic load to be good. 1.5moa CONSISTENT to be my target most of the time. If I can do better heck yes, but it gets tougher to get them tighter than 1moa consistently. It can be done though; its just not easy like most supersonics.</p><p></p><p>You should be able to get hunting accuracy without too much fuss. Deer and pigs inside 100 yards will be in trouble with trailboss and some 170 flat noses.</p></blockquote><p></p>
[QUOTE="redbullitt, post: 1306356, member: 100987"] Your 308 will do fine with the 10 twist. Trail boss is going to be the easiest to work with. I usually wind up between 9 and 12 grains depending on bullet. Case fill is good enough. Never had much difference with drilled primer pockets, so I dont do it. Just not worth the effort in my experience. Your combination may be different of course. Primers do seem to matter; I have the best luck with the winchester LR. Small primer brass may be interesting to try, but I have not messed with it. As to bullets, I suggest the flat nose 30 30 bullets in 150 or 170g. They have produced good results in multiple rifles. I have used the 160 FTX bullet a bit and it shows A LOT of potential. Will hopefully know more this summer when I get some time. The 180 RN is good as well. If you want to go heavier the 220 RN is excellent. I have not had any trouble stabilizing these from a 16.5 inch 10 twist 308. 1000 ft elevation, 30 to 90 degrees. Velocity between 950 to 1100 depending on rifle and load. I have had the best success with cast bullets in this application, though even if coated I try to stick to jacketed when suppressed. Accuracy and precision can be tough here. You need to be on top of your form. That subsonic bullet spends more time in the bore than usual, so your mistakes will show up more than with a fast bullet. Your loading practices need to be top notch. 15 fps between shots WILL be a problem if you are shooting any distance at all. Dont get discouraged. Keep working on it and you will eventually find a good loading. In my experience it is just tougher than usual. As far as groupings, I consider a CONSISTENT 2moa subsonic load to be good. 1.5moa CONSISTENT to be my target most of the time. If I can do better heck yes, but it gets tougher to get them tighter than 1moa consistently. It can be done though; its just not easy like most supersonics. You should be able to get hunting accuracy without too much fuss. Deer and pigs inside 100 yards will be in trouble with trailboss and some 170 flat noses. [/QUOTE]
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