@ 06:57 pm (GMT) |
Eugene Galebachproblems with 150 Sierra match king bullets at max loads |
@ 08:02 pm (GMT) |
Mike NeesonRe: 150 Sierra match kingSorry Eugene, is that a statement or a question? Could you be more specific on calibre, etc. Are you having problems? Do you want to know if there are any problems? What velocity are we talking about? Have you read the knowledge database on the calibre concerned? |
@ 02:09 pm (GMT) |
Eugene GalebachRe: 150 Sierra match king308 win. 150 gr. w748 power at 49 grains chron. at 2967. Shoots 2 and 3 inch groups at 100 yards. I have Hornady 150 gr. same load and shot .5 inch groups at 100 yards. |
@ 11:40 pm (GMT) |
Mike NeesonRe: 150 Sierra match kingI hate to post the obvious but... sounds like the hornady is the way to go. I don't have any experience with the 150's but some barrels will shoot one projectile really well and others not. I'm guessing there may be a difference in bearing surfaces, jacket construction etc. There may be a problem with the projectiles being quite short for caliber which can cause poor neck concentricity, but hard to tell because I don't know which hornady you are talking about. Have you thought of moving up to the 168 or 178 AMAX? I have had some excellent results with the 168 AMAX myself. |
@ 03:26 pm (GMT) |
Eugene GalebachRe: 150 Sierra match kingI have Hornady 165 gr. SST to try. I have noticed that the Sierra 150 gr. are out of concentricity by 5 thous. or more and the bullet length can 10 thous. to 15 thous. differences. I am also going to try lower powder charges in the sierra loads to see what happens. |
@ 09:35 pm (GMT) |
Mike NeesonRe: 150 Sierra match kingPersonally I wouldn't bother mucking around with the sierras... they clearly aren't doing too well. I think you will find the 165 SST very good. How long is your barrel and what action are you using? I, through Nathan's research, have had great success with H4895/IMR4895 in my 20" remington 700 SPS Tactical. My current load is 44.5 of AR2206h/H4895 under the 168AMAX - the 165 SST can be duplicated for this load.Also read the Cartridge over all length article of Nathan's - read the whole thing. http://www.ballisticstudies.com/Knowledgebase/Determining+COAL.html THIS IS 1 GRAIN OVER MAX and if you plan to give this a go, start under the max of 43.5 and work up in .5 grain increments. Maybe start at 42.5? KEEPING CLOSE EYE ON PRESSURE SIGNS as you progress. Here is an excellent article on what to look for. http://riflemansjournal.blogspot.com.au/2011/02/cartridges-long-range-reloading-safety.html Good luck and hope this helps |
@ 11:06 pm (GMT) |
Nathan FosterRe: 150 Sierra match kingThanks Mike, that would have been my reply.I hope Mikes advice helps Eugene. All the best. |