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Need powder sugg for 300 WSM 1 in 11 twist

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Old 03-12-2005, 02:52 PM
Silver Member
Join Date: Apr 2004
Location: Tremonton, UT
Posts: 136
Re: Need powder sugg for 300 WSM 1 in 11 twist

You know, I say the Tikka 300 WSM is nothing great but it still shot about .6" with the first load I tried through it (I did not even pull the rifle out till today), and there is still a lot more playing to do. 180 grain NBT with 63.5 grains H4350. Like I said, I am seated way out since I converted the tikka to a long action. I saw no pressure signs, so I think I will try to 64.5 but will stop there since this is above listed value. BTW I was using Norma brass and WLRM primers. Thanks to everyone for the load info.
"Buzzards gotta eat, same as worms" - Josey Wales
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Old 03-13-2005, 12:27 PM
Silver Member
Join Date: Jan 2004
Location: Mississippi
Posts: 181
Re: Need powder sugg for 300 WSM 1 in 11 twist

I am using 150 grain Sierra BTSP's in my Tikka T3. My powder of choice in this bullet weight is IMR 4320 @ 58.4 grains for a velocity of 3,044 fps. It is a mild load but extremely accurate. It helped me to take an Antelope @ 452 yards back in August in New Mexico. Good luck w/ yours! [img]/ubbthreads/images/graemlins/smile.gif[/img]
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Old 03-13-2005, 01:09 PM
Bronze Member
Join Date: Mar 2005
Posts: 63
Re: Need powder sugg for 300 WSM 1 in 11 twist

Could you guys tell me about the Ramshot powders? Is "Hunter" a ball or stick powder? Temp sensitive or not? Enough people have mentioned that one I think I will give it a try

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Hunter is a ball powder and is not temp sansitive. I use Hunter in my 300WSM BAR with excellent results. 71gr of Ramshot Hunter, 165gr Nosler Partition, Win Brass, Fed 215 Primers, sub MOA at avg vel 3155fps. Ramshot list 73.2gr as max at 3152fps. I had 3280fsp at 73gr. with no signs of pressure. I droped back until I reached published vel. of 3152 (71gr). My gun likes Hunter so well I stopped testing other powders completely. When the snow melts I am going to give Hunter a test run in my 30-06, hoping for good things.
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Old 03-13-2005, 03:39 PM
Platinum Member
Join Date: Jun 2007
Location: Wilmington NC
Posts: 4,418
Re: Need powder sugg for 300 WSM 1 in 11 twist


RL22 is really MRP.

Norma makes MRP, tests and keeps the high quality lots and sells the seconds to Alliant who markets it as RL22 and RL25.

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Old 03-15-2005, 07:04 PM
Posts: n/a
Re: Need powder sugg for 300 WSM 1 in 11 twist

I've found that Accurate Arms Mag-Pro works extremely in my short mags .270 & 300.Excellent accuracy wiht all weights of bullets.Its a ball powder and meters very well.
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