I am fairly new to reloading but am being coached by a friend that reloads for his 22-250 but has no knowledge on the 300 wsm. I have tried the Reloder 17 at 69.3 gr. and the IMR 4831 at 70 gr. both under 150 gr. Nosler Ball.Tip bullets using cci magnum primers with no luck.Appox. 2 in.groups at 100.This rifle was shooting .5 with factory loaded 130 gr.barnes.These factory loads are just way to expensive to buy and i have also been told i need to go up on my bullet weight in this caliber.Can anyone give me some more good powder ideas and tell me were i should try to have this rifle at on my chrony for max speed as well as max accuracy.Thanks in advance for any replys.
This is what I get with my 300 WSM and 165gr Hornady SP bullets.69.0grs of the discontinued Winchester WXR powder, 3030fps.Reloader-22 also gives me the same and I believe it's the same powder,just a different lot and package.65.0grs of IMR-4350 did almost as good.Do a ladder test and keep on trying.300WSM 3 shots 100yds on Flickr - Photo Sharing!
Your not just arbitrarily picking powder charges and shooting them are you? Your gun may not like someone else's load. often there is a certain powder and bullet that works somewhat across the board for a given cartridge but you'll need to adjust for you gun.
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Hard to really answer without more info. Can you explain step by step your hand loading and load development process?
Your rifle might like RL17 with another bullet, or the 150 BT with another powder, or RL17 with the 150 BT at another charge, or different primers, etc. A 2" group seems kind of big in any case. What rifle are you shooting? Have you clean it or tinkered with it since getting the good groups with the Barnes?
volunteerbee,
This may be off the wall to you, but I calculated the OBT node loads for you. If you want to take a chance, load 3 of each and see what kind of group accuracy you get. This is for RL-17 with 150gr Nosler ballistic tip.
67.8gr node 3, expected 3319fps
66.1gr harmonic between nodes 3 and 4, expected 3241fps
64.3gr node 4, expected 3161fps
If you try it, let us know whether the OBT loads are good.
How does your bullet seating depth compare to the factory loads? I just went through a similar situation, and was only able to repeat factory load groups when I matched the seating depth. I was using the same bullets as the factory loads, so it may not work for you. Due to the different shapes of the bullets, an overall length measurement probably won't be a good comparison. I use an RCBS precision mic set, there are other methods as well.
I am fairly new to reloading but am being coached by a friend that reloads for his 22-250 but has no knowledge on the 300 wsm. I have tried the Reloder 17 at 69.3 gr. and the IMR 4831 at 70 gr. both under 150 gr. Nosler Ball.Tip bullets using cci magnum primers with no luck.Appox. 2 in.groups at 100.This rifle was shooting .5 with factory loaded 130 gr.barnes.These factory loads are just way to expensive to buy and i have also been told i need to go up on my bullet weight in this caliber.Can anyone give me some more good powder ideas and tell me were i should try to have this rifle at on my chrony for max speed as well as max accuracy.Thanks in advance for any replys.
If you can find some try Vihitavouri N550 at 66grains sparked by a Fed215GM for the 150's and thank me later! START LOW AND WORK UP this powder has some ZING to it. My rifle shoot 150grn TTSX anywhere from .500-.6!
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