Something different!

[M14AMU]

I've noticed that most of the standard 22/250 commercial rifles have the slow twist of 1-12 or 1-14 so I built one up with a 1-7 twist on a Rem 700 action and recently it has been shooting the Sierra 90 gr. .224 bullet extremely well at the mid-range of 600 yards. This is using H4831SC powder at 37.5 grs. with a F210M primer and the bullet seated touching the lands. Base to ogive measure is 2.208". The above listed load is not max in this rifle but after numerous sessions on the range I think it is near max. Have not had a chance to chrony it as yet as the unit is loaned out and back soon. I am most surprised in the way that this bullet IS NOT affected by normal winds of 15-20 mph!!


Bullet profiles by Sharps45 2 7/8, on Flickr

 

[stool]

they are ALL affected by the wind........maybe less than what you have shot in the past.

 

[M14AMU]

they are ALL affected by the wind........maybe less than what you have shot in the past.

But NOT in relation to some other bullets I have fired....in the same type winds!!

 

[stool]

math and such are FACTS.
you shoot a bullet at xxxx fps in a 10 mph wind: it will move.
tell me your specific load, powder and all and the oal...
i'll tell you the drift.
saying it is less wind sensitive is fine....saying it does not move is not.

they are ALL affected by the wind........maybe less than what you have shot in the past.

But NOT in relation to some other bullets I have fired....in the same type winds!!

 

[LHSmith]

math and such are FACTS.
you shoot a bullet at xxxx fps in a 10 mph wind: it will move.
tell me your specific load, powder and all and the oal...
i'll tell you the drift.
saying it is less wind sensitive is fine....saying it does not move is not.

Published ballistics charts and computer programs are an approximation. Each barrel is different. Each barrel will tune different. And once in a while some lucky shooter gets a barrel that is very insensitive to wind...as in your holding off 3 bullets holes while he's holding off just one....match after match.

 

[stool]

math and such are FACTS.
you shoot a bullet at xxxx fps in a 10 mph wind: it will move.
tell me your specific load, powder and all and the oal...
i'll tell you the drift.
saying it is less wind sensitive is fine....saying it does not move is not.

[size=10pt][size=14pt]if he is holding off ONE BULLET HOLE...the bullet is not INsensitive, it is LESS sensitive to wind.

which is all i was saying..it may shoot lights out, but to claim the bullet does not move in 15-20 mph winds is not realistic.
less than others fine, a bunch less than others fine, not move in 15 mph winds..not realistic.
[/size]

[/size]

Published ballistics charts and computer programs are an approximation. Each barrel is different. Each barrel will tune different. And once in a while some lucky shooter gets a barrel that is very insensitive to wind...as in your holding off 3 bullets holes while he's holding off just one....match after match.

 

[stool]

ok i screwed up on font size and it will not let me reduce it..so excuse me..i tried twice

 

[M14AMU]

Never said the bullet didn't drift!

"I am most surprised in the way that this bullet IS NOT affected by normal winds of 15-20 mph!!"

If you read the above and can decipher the English language it shouldn't be too difficult to comprehend that this comment MEANS that in my opinion the 90 gr. Sierra bullet is LESS AFFECTED by the listed wind speeds than some others I've fired!! Next time I'll try to draw a frickin photo but in the finality you guys are just looking for something to bitch about!

Pardon my friggin azz for causing controversy! You won't have this problem from me again!!

 

[boltfluter]

Never said the bullet didn't drift!

"I am most surprised in the way that this bullet IS NOT affected by normal winds of 15-20 mph!!"

If you read the above and can decipher the English language it shouldn't be too difficult to comprehend that this comment MEANS that in my opinion the 90 gr. Sierra bullet is LESS AFFECTED by the listed wind speeds than some others I've fired!! Next time I'll try to draw a frickin photo but in the finality you guys are just looking for something to bitch about!

Pardon my friggin azz for causing controversy! You won't have this problem from me again!!

great report. Makes perfect sense to me. Must be the joy of the Holidays coming out in people.

Regards, Paul

 

[CatShooter]

... And once in a while some lucky shooter gets a barrel that is very insensitive to wind...as in your holding off 3 bullets holes while he's holding off just one....match after match.

... with the same twist and same bullet at the same velocity?

And you actually believe that??

Kind sir - Please explain this to the rest of us.

 

[Eddie Harren]

Anyone, who has spent time shooting benchrest, will tell you that, occasionally, you will be lucky enough to get what some refer to as a "hummer" barrel. For those of you, who doubt this, keep buying barrels and sooner or later it will happen to you. I've had 2 in 25 years of shooting benchrest.

 

[stool]

cat, yes as doc says, every now and then the stars ansd the moon align and kickbutt bbls are assemble into "shooters".
guys love it when it happens..and will even save the bbl for big matches, using a lesser bbl at a club match.

BUT
ALL OF THAT DOES NOT STOP A BULLET FROM DRIFT IN A 15-20 MPH WIND...

 

[jpretle]

RMulhern, I got exactly what you intended, in your post.
As I read this thread, the thought of, 'not knowing what you don't know', came to mind.
Keep 'em Centered.

 

[stool]

I am most surprised in the way that this bullet IS NOT affected by normal winds of 15-20 mph!!

sorry but the english lanaguage is pretty clear. what you MEANT and what you WROTE are not the same.

the word NOT is not the same as "less than" or "not as much as "

which is the only reason i brought it up.

everyone have a good day, i think we have settled the issue........

 

[M14AMU]

stool

You need to work on 'reading comprehension' badly!!

I won't waste any more time on you!!

 

[MGYSGT]

Geez guys, I am sure that at 22-250 velocities his bullet drifts a lot less than at .223 velocities. I don't come here for English lessons. I come here for shooting knowledge, so lighten up. I am quite sure that those doing all the sniping really know what he was really saying. Just every once in a while I am slightly ashamed of what is said on this site.

Tom

 

[Erik Cortina]

Geez guys, I am sure that at 22-250 velocities his bullet drifts a lot less than at .223 velocities. I don't come here for English lessons. I come here for shooting knowledge, so lighten up. I am quite sure that those doing all the sniping really know what he was really saying. Just every once in a while I am slightly ashamed of what is said on this site.

Tom

I think it was good to call him on it because like you said, the real shooters know what he was talking about, but what about the new shooters? What about the guys that will actually believe it and go out and build a 22-250 only to find out that it was not true?

Experienced guys know how to weed out the good from the bad, new shooters don't.

 

[Raythemanroe]

I'm not gonna hammer your hummer like some, but if you hit on on a load or just have a very good barrel or rig it appears to have less drift because it is making smaller groups..Just my opinion, either way more follow up data would be interesting

 

[Erik Cortina]

I'm not gonna hammer your hummer like some, but if you hit on on a load or just have a very good barrel or rig it appears to have less drift because it is making smaller groups..Just my opinion, either way more follow up data would be interesting

I agree. A gun that shoots 3" groups at 1,000 yards will appear to have 7" less wind drift than one that shoots 10" groups at 1,000 yards.

The more accurate gun will more than likely stabilize the bullet faster, thus giving it a higher BC as well.

 

[M14AMU]

RMulhern,
I understood exactly what you meant. I'd also be very interested in hearing more about your load characteristics. I understand you didn't chrono it, but do you know your drop at 600 yd? I'm a little surprised at your use of 4831SC for that load, but apparently it's working well for you. Did you try any other powders with the 90s?

gstaylorg

Load was/is 37.5 grs. H4831SC with a F210M primer. I have used Wolf LR Mag primers but accuracy remains the same. Using Win brass/base to ogive is 2.103". BC of bullet=.504 above 2200 fps. Rifle zeroed at 200 yards and 600 yard zero is 12 MOA above this zero. This is using a Leupold 6.5x20X target scope that has proven to be very reliable in adjustment changes. Sierra advised that they have not done any testing with this bullet through the 22/250 and they advised to take data loadings from the 80 gr. Sierra and reduce by 5/10 gr. to start. My next testing will be done with H4350 through my chrony. At present I believe my velocity to be around 2850 fps based on previous data when establishing my current zeros.