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22-250 Question |
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koshkin
MODERATOR Dark Lord of Optics Joined: June/15/2004 Location: United States Status: Offline Points: 13182 |
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Posted: September/14/2009 at 16:39 |
I have a heavy barrel savage chamebred for 22-250. I have largely been shooting factory ammo out of it, but this time around I decided to make some handloads for it. These loads will be used for taget shooting at the range and I will probably end up using Sierra MatchKing bullets or something similar. I've had good luck with SMKs in other rifles, so I am leaning that way. On the other hand, Berger Bullets look appealing as well.
Savage's 22-250 has a 1-in-12" twist rate. What is the heaviest bullet it is likely to stabilize? Sierra has a 60gr Varminter HP. Berger has 60gr, 62gr and 64gr Match bullets with impressively high BC values. Also, what powder would you recommend for 22-250 with the heaviest bullet that is likely to work? Thanks ILya
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supertool73
Optics God Superstool Joined: January/03/2008 Status: Offline Points: 11814 |
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60 grain will probably be the top end of what you can get to work. 50 to 55 would be better. I used to load them for my buddy and his was 1-12 and 50 and 55 Vmaxs both worked pretty well.
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koshkin
MODERATOR Dark Lord of Optics Joined: June/15/2004 Location: United States Status: Offline Points: 13182 |
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What powder did you use?
I have been trying to switch some of the reloading I do to spherical powders or to small kernel ones, so that I could throw them rather than weigh everything. ILya
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supertool73
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I was using IMR 4064 and Varget. We were actually going to start using BL-C2 for the exact reason you stated, but he sold his gun toward an AR and my 22-250 reloading days were done.
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supertool73
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H414 is smaller to and meters well, I use that in my .243 so I can run it through my progressive press.
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SD Dog
Optics Master Extraordinaire OT Scratching Post Joined: February/28/2008 Status: Offline Points: 4177 |
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I agree with ST and would say 60gr is about as heavy as you will be able to run with a 1 in 12, but you might run some heavier. My Ruger is 1 in 14 and loves 55 nosler bt's. I am using 4064 but is a pain to meter, have not tried anything else yet.
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koshkin
MODERATOR Dark Lord of Optics Joined: June/15/2004 Location: United States Status: Offline Points: 13182 |
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I just cooked up some handloads with BL-C(2) for my 308 and I use H414 for 7.62x54R (switching from H4350), so I have both of those powders and can try them.
Wouldn't H414 be a bit slow for 22-250? Also, have you used any of the Ranshot powders? I think they are all spherical in shape. ILya
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supertool73
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hmmm, maybe. I just use it in .243 as a friend who reloads commercially for a living recommended it for my progressive press. It has always worked well.
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supertool73
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no ramshot for me. I have for the most part always stuck with hodgdon, don't know why just mostly have.
Looks like hodgdon lists 414 okay for the 22-250 so it would probably work okay. |
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RONK
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I don't have any significant 22-250 experience, but I'd like to commend your decision to throw charges by volume rather than weight.
Here's why:
A consistent weight will yield inconsistent volume from differing batches of the same propellant.
Likewise, a consistent volume will yield inconsistent weight from differing batches of the same propellent.
I have come to believe that a consistent propellent volume will give greater accuracy and more uniform pressures than consistent propellent weight among the individual cartridges in a given box of ammo, especially in fast-stepping, high-performance cartridges such as your 22-250.
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koshkin
MODERATOR Dark Lord of Optics Joined: June/15/2004 Location: United States Status: Offline Points: 13182 |
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I did some experiments with weighed vs thrown charges on my 280Rem using H4831. With the Hornady powder measure I was using for thrown charges and PACT electronic powder dispenser for weighed charges, weighed charges proved to be a little more accurate. However, this powder measure does not throw H4831 very accurately. It also has a problem with VV N140 that I use (so far) in 7.62x54R for my Finn M28-76. It does throw BL-C(2) and H414 very accurately and I suspect it would be equally accurate with other spherical powders. ILya
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koshkin
MODERATOR Dark Lord of Optics Joined: June/15/2004 Location: United States Status: Offline Points: 13182 |
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I looked at Hodgdon's website and it looks like BL-C(2) yields very slightly higher velocities than H414, but by and large they behave very similarly. Unfortunately, Hodgdon does not list any of the bullets I thought about using. 60gr V-Max does look interesting, so perhaps it is worth a try. Interestingly, Berger website suggests using their 64gr and 62gr bullets with 1-in-12 twist. Now, I just need to find a load recipe for 64gr bullet... ILya
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pyro6999
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4064 varget h-380 even reloader 15 is good with any 50-55gr grain bullet in a 22-250.
i shoot 36gr of 4064 with a 55gr sierra prohunter out of mine. |
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tahqua
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That's one of my loads too. It throws fine from my RCBS. I think the bullets you mentioned, up to 64 grains, should be good with the 1/12". I have always had excellent results with Sierra's. I have a couple of 22-250's and think it is a very accurate round. Especially for a screamer. One's a heavy barreled Remington and the other a sporter weight for snow shoeing. |
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koshkin
MODERATOR Dark Lord of Optics Joined: June/15/2004 Location: United States Status: Offline Points: 13182 |
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I did a brief inventory of suitable bullets and powders I have on hand and it looks like I have enough to start experimenting.
I have Sierra 53gr, 55gr and 60gr hollow points and 55gr Hornady V-Max. As far as suitable powders go, I have H414, BL-C(2), IMR4895, H4895 and Varget. Since I am not using the last three for anything else, I think I will start with them and go from there. I suppose I'll start by running some experiments with how accurate thrown charge weights are. I also sent an e-mail to Berger Bullets to see what they can recommend. ILya
Edited by koshkin - September/18/2009 at 18:20 |
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supertool73
Optics God Superstool Joined: January/03/2008 Status: Offline Points: 11814 |
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one note about the bergers. Reason they can handle the slower twists is they are very long bullets but a big part of that bullet is tapered. Only a small part of it touches the rifling. Good thing is it allows you to shoot heavier bullets in a slower twist. Downside is if you load them like they recommend they will not fit in your mag as they are to long and you know have a single shot.
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Lifetime warranty and excellent customer service don't mean a thing when your gun fails during a zombie attack.
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koshkin
MODERATOR Dark Lord of Optics Joined: June/15/2004 Location: United States Status: Offline Points: 13182 |
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I am not sure that is correct. I need to check the the mag length, since 22-250 is built on a "short" action that is designed for the longer 308Win-family of cartridges. There might be enough space. ILya
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Bigdaddy0381
MODERATOR Georgia peach Joined: February/27/2007 Location: Georgia Status: Offline Points: 13682 |
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I shoot 69/70gr with a 1-9 twist but I can also shoot 55gr bergers/V maxs very well. with a 1-12 I would go with nothing heavy than a 55gr. 36gr of Varget would be a rocking..
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3_tens
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The last time around I used reloader 10X and it is giving me small groups. I have not put it across a chronograph yet to check the velocity but it shot close to the graph for what it stated. I do not have any of the numbers here to post.
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RONK
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I really have to question your assertion, Jason. that the proper twist rate for a given bullet is somehow connected to the amount of bearing surface of the bullet to the bore?
I think it simply would be far more accurate to simply state that very high BC (Ballistic Coefficient) bullets need a faster twist rate to shoot well than do low BC bullets.
Low Drag= Low Stability;
High Drag=High Stability.
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