RE: 70gr Tripple shock X bullet for .223???
 

Thanks for your inquiry, First off i don,t have a digital camera,or scanner,ssecond. the 69 gr bullets even say only for 7 1/2 or 9" twist barrels on the bx.third you are very lucky to live were yu have a personal range like that,a lot of people envy you,for being that far away. fourth. they did not sell as far as i know either.fifth,i meant the price for those x bullet one can,t affort to use them for pratice rounds. As one must always know that EACH barrel is different,just like a woman. And i do have a true 1-12twist in mine. I do know how to measure one. Being a gunsmith,for over 40yrs,whom worked for the best in the country companies,and have taught nation wide renowed gunsmith schools,i think i might know a little bit more than some peoplewhom live afar,and less than some.I usually shoot a lot of game each year and more ammo than most buy in there life time. Hope some day,or by the way the 70gr group as of the best was .261 at 100yds.Hope some day to come see you in texas,but never been there till the LAST time i passed throught it. enjoy your shooting and keep it flying. vangunsmith

RE: 70gr Tripple shock X bullet for .223???
 

my guess is this bullet is probably intended for a 22-250 or a 220 swift. if it was to be used in .223 id imagine it would need atleast a 1 in 7 twist even with a 1 in 7 twist i doubt a .223 could push it fast enough lack of powder capacity to get the needed velocity

RE: 70gr Tripple shock X bullet for .223???
 

Van
Okee dokee. Don't know Ralph at Barnes but do know Randy and Connie. I did a bit of early testing of the original 52/53 grain Barnes X bullets for them at the time.

The 69s boxes I've had have said 10 twist or faster. Of course I've probably only loaded abouty 150,000 or so of them so far. Of course the first 69s had no stipulation as to twist rates

Where was that twist formula now again? Or exactly how do you as a smith go about suggesting twists? I well know that weird things happen. But having run a lot of 80 grainers out of 9 twist barrels I know that the longer projectiles in the 80 grain weight may not stabilize while the shorter 80 grainers will. It has to do with the length at least some. Of course I don't shoot anything off my 100 yard bench any more. I start testing at 300 and it may well be easier to see those slightly oblong holes out at 300 than up close. I assume we are not suggesting that a 12 is the way to go, only that it could work, but probably only a fluke if it did and at high speed if so? Thats the way we suggest 9 twists to use 80s. Nope they don't all work, if they do it takes a person driving a 223 round awful hot to keep them working and they best not err to 9.1 or 9.2 etc.... We don't suggest starting at 9 twist if shooting 80s but if its what you have you can try. This may be what you are suggesting I suspect.

High Desert

Only some info for those interested. Having not shot the 70 Xs yet, Over the last 15 years I've probably loaded some 8-to almost 20K rounds of 223 a year. The 7 twist, even in a 20 inch tube, will stabilize everything up to 80s. Under correct circumstances it will stabilize 90 JLKs. But its not reliable there and have to go to a 6.5 twist(amazingly enough my gunsmith took the 90s and calculated the required twist rate and so did Jimmy Knox and both ended up saying faster than 7 but not 6. It was some weird fractional number and hence the fact that we contracted Pac Nor into making the 6.5 twist 224 tubes for us to use for 90s)

I know this is not relevant to an X but it would still be nice if someone posted OAL of the 70 so it can be compared to known projectiles including its design shape (secant Ogive??) to give an educated guess.

Jeff

RE: 70gr Tripple shock X bullet for .223???
 

I called Sierra Ballistics (800-223-8799) this morning and talked to Duane - he said that, although there are occasionally some slight variations in what a true 12 twist will stabilize - there is no possible way any 1:12 twist will work with either their new 65 gr. SBT or the 69 HPBT. And as long as Barnes X bullets are for their weight, the new 70 gr. X would almost certainly be unstable as well.

RE: 70gr Tripple shock X bullet for .223???
 

i am also new to reloading my self and wanted to try out some new types of bullets. is there a site that i can go to and find out what bullets will shoot the best for a rem700vls 22-250 1:14 26in bull barrel. from what i have read i should stick to anything less that 60????

RE: 70gr Tripple shock X bullet for .223???
 

with handloaded 22-250's loaded from near maximum to maximum charges, because of the serious velcoity increase over a .223, your 1 in 14 twist wist stablize a 60 grain bullet just fine, you could go as high as 65 and not likely see any problems either. with factory ammo I would stay with 55 to 60 grainers or lighter.

Ya got me

RE: 70gr Tripple shock X bullet for .223???
 

OK - there are a couple of possible explanations here:

1. Somewhere out there in gunny land, there is a customer of your gunsmith who got his gun back around the same time you did. He ordered a 1:8 twist barrel. Can't figure out why it won't shoot anything heavier than 65 grains - but it shoots 55 gr. bullets great. He has your barrel. You have his. I wouldn't complain.

2. As your 77 gr. Sierra's are tumbling through the air, they do it so consistently that they all hit point-first on the target you included. And group well to boot!! Move your target ten yards closer or farther and you will see the sideways bullet holes.

RE: 70gr Tripple shock X bullet for .223???
 

talk about day-sha-voo. i know that i have seen that target before. well i did some looking and found out that its the same as the target that got shot with a ruger 10/22 at 50yds. http://forum.hunting.net/asppg/tm.asp?m=1026973 need i say more.

RE: 70gr Tripple shock X bullet for .223???
 

Thanks, ceberly. I had hoped that the poster was being sincere in his totally incredulous claim. You know, there are a lot of different kinds of people on these bulletin boards. There is one from Wisconsin named Cayugad (who regularly posts on muzzleloading websites) that is an example of what everyone who participates in these board discussions should aspire to be: helpful, non-critical, hospitable to newbies, knowledgeable but not a know-it-all, and not really here for any personal ego pumping reasons.

Unfortunately, there are others who want to stir the pot in ways that are socially unacceptable in any setting outside the anonimity of the internet . . . . .

Please stick around. There is some BS flying around - but there is a lot of good stuff too. Regards. Roscoe

RE: 70gr Tripple shock X bullet for .223???
 

Ceberly - in response to your earlier question - you never really know what a certain gun is going to like/not like - but these new Sierra Blitzkings (55 gr.) ahead of a medium charge of H-380 has shot well for me in a bunch of different Remingtons. H-414/WW760 can also be good - and is usually a little faster. And generally one of the colder primers (like the Remington 9 1/2) is going to give you the most consistent velocity. Good luck.