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22-250 Question

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koshkin View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote koshkin Quote  Post ReplyReply Direct Link To This Post Topic: 22-250 Question
    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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Post Options Post Options   Thanks (0) Thanks(0)   Quote supertool73 Quote  Post ReplyReply Direct Link To This Post Posted: September/14/2009 at 16:46
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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Post Options Post Options   Thanks (0) Thanks(0)   Quote koshkin Quote  Post ReplyReply Direct Link To This Post Posted: September/14/2009 at 16:58
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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Post Options Post Options   Thanks (0) Thanks(0)   Quote supertool73 Quote  Post ReplyReply Direct Link To This Post Posted: September/14/2009 at 17:00
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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Post Options Post Options   Thanks (0) Thanks(0)   Quote supertool73 Quote  Post ReplyReply Direct Link To This Post Posted: September/14/2009 at 17:01
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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Post Options Post Options   Thanks (0) Thanks(0)   Quote SD Dog Quote  Post ReplyReply Direct Link To This Post Posted: September/14/2009 at 17:10
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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Post Options Post Options   Thanks (0) Thanks(0)   Quote koshkin Quote  Post ReplyReply Direct Link To This Post Posted: September/14/2009 at 17:22
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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Post Options Post Options   Thanks (0) Thanks(0)   Quote supertool73 Quote  Post ReplyReply Direct Link To This Post Posted: September/14/2009 at 17:39
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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Post Options Post Options   Thanks (0) Thanks(0)   Quote supertool73 Quote  Post ReplyReply Direct Link To This Post Posted: September/14/2009 at 17:40
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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Post Options Post Options   Thanks (0) Thanks(0)   Quote RONK Quote  Post ReplyReply Direct Link To This Post Posted: September/14/2009 at 17:57
 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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Post Options Post Options   Thanks (0) Thanks(0)   Quote koshkin Quote  Post ReplyReply Direct Link To This Post Posted: September/14/2009 at 18:13
Originally posted by RONK RONK wrote:

 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.
 
 

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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Post Options Post Options   Thanks (0) Thanks(0)   Quote koshkin Quote  Post ReplyReply Direct Link To This Post Posted: September/14/2009 at 18:13
Originally posted by supertool73 supertool73 wrote:

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.

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...

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Post Options Post Options   Thanks (0) Thanks(0)   Quote pyro6999 Quote  Post ReplyReply Direct Link To This Post Posted: September/14/2009 at 18:51
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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Post Options Post Options   Thanks (0) Thanks(0)   Quote tahqua Quote  Post ReplyReply Direct Link To This Post Posted: September/14/2009 at 19:47
Originally posted by pyro6999 pyro6999 wrote:

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.


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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Post Options Post Options   Thanks (0) Thanks(0)   Quote koshkin Quote  Post ReplyReply Direct Link To This Post Posted: September/15/2009 at 02:35
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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Post Options Post Options   Thanks (0) Thanks(0)   Quote supertool73 Quote  Post ReplyReply Direct Link To This Post Posted: September/15/2009 at 11:43
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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Post Options Post Options   Thanks (0) Thanks(0)   Quote koshkin Quote  Post ReplyReply Direct Link To This Post Posted: September/15/2009 at 12:38
Originally posted by supertool73 supertool73 wrote:

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.    

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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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bigdaddy0381 Quote  Post ReplyReply Direct Link To This Post Posted: September/15/2009 at 13:26
Originally posted by koshkin koshkin wrote:

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
 
 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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Post Options Post Options   Thanks (0) Thanks(0)   Quote 3_tens Quote  Post ReplyReply Direct Link To This Post Posted: September/15/2009 at 16:03
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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Post Options Post Options   Thanks (0) Thanks(0)   Quote RONK Quote  Post ReplyReply Direct Link To This Post Posted: September/15/2009 at 16:44
Originally posted by supertool73 supertool73 wrote:

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.    
 
 
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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