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Rifles, Reloading, Optics, Equipment
Reloading
I have a 300 WSM. I have TS 15.5. I want to load 150 badlands bd2's. Where to start?
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<blockquote data-quote="nralifer" data-source="post: 2715447" data-attributes="member: 94556"><p>FEENIX, thank you for the referral. I have no experience with TS15.5 but in reading about it it looks very interesting. Consistent, yields low ES suggesting it is not quirky. I think what is relevant here, is the powder's burn rate appropriate for shooting the 150 BD2 in the WSM? Alliant says it's burn rate is between RL15 and RL16, but that is a fairly wide gap. There is published data on Varget use in the 300 WSM shooting 150 gr bullets, and according to the rather extensive relative burn rate chart in the 2021 Hodgdon Annual Manual Varget is closer to RL15 in burn rate than to RL16. What I would try is a TS15.5 charge equivalent to the lowest listed Varget charge listed ( 55 gr Varget in the 2021 Hodgdon Annual Manual for 150 gr bullet in the 300 WSM) and see, using a flash light, if the powder level within the case is similar to the level achieved by Varget. If so, then I'm assured that the charge density is not too low. Load the bullet to a COAL that will give a 0.030-0.035" jump, and fire the round not using a mag primer. If you can document the speed all the better. Look at the primer radius carefully and compare it to a seated unfired primer. Best way is to take a pic using your phone camera with the cases side by side and magnify the image. Use unfired brass for this first shot. If things look good and the velocity is low then you know that pressure is low. Then you can gradually increase the TS15.5 charge by 1 gr increments until you start to see early pressure signs or you get to a speed you are happy with.</p></blockquote><p></p>
[QUOTE="nralifer, post: 2715447, member: 94556"] FEENIX, thank you for the referral. I have no experience with TS15.5 but in reading about it it looks very interesting. Consistent, yields low ES suggesting it is not quirky. I think what is relevant here, is the powder’s burn rate appropriate for shooting the 150 BD2 in the WSM? Alliant says it’s burn rate is between RL15 and RL16, but that is a fairly wide gap. There is published data on Varget use in the 300 WSM shooting 150 gr bullets, and according to the rather extensive relative burn rate chart in the 2021 Hodgdon Annual Manual Varget is closer to RL15 in burn rate than to RL16. What I would try is a TS15.5 charge equivalent to the lowest listed Varget charge listed ( 55 gr Varget in the 2021 Hodgdon Annual Manual for 150 gr bullet in the 300 WSM) and see, using a flash light, if the powder level within the case is similar to the level achieved by Varget. If so, then I’m assured that the charge density is not too low. Load the bullet to a COAL that will give a 0.030-0.035” jump, and fire the round not using a mag primer. If you can document the speed all the better. Look at the primer radius carefully and compare it to a seated unfired primer. Best way is to take a pic using your phone camera with the cases side by side and magnify the image. Use unfired brass for this first shot. If things look good and the velocity is low then you know that pressure is low. Then you can gradually increase the TS15.5 charge by 1 gr increments until you start to see early pressure signs or you get to a speed you are happy with. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
I have a 300 WSM. I have TS 15.5. I want to load 150 badlands bd2's. Where to start?
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