tetawa wrote:Many years ago Federal loaded 55 Nosler solid base ( the original Noslers) in .223 factory ammo in 500 round boxes. I purchased a box for a mate, I don't think he ever used them. If you are interested let me know and I'll catch up with him.
Carpe Diem wrote:Hey scribe - Hows the stability of the Sierras at that twist rate as I struggle with accuracy or consistency in anything over 60gr in my Rem 700 apart from the 60 gr partitions. Do you think the reason you are still searching for a load is that you're top ended as far as stability goes? just a suggestion.
You won't likely see keyholing at that weight jump, but it may be the first signs of lack of stability as it sounds like you are pounding those out with a pretty full load. I too tried taking mine to 65's and 70's before settling back to great accuracy in the 55 to 60 range where I could use blitzkings, v-max's, soft points or Partitions all happily with great accuracy and dependability.
Just a thought?
Yeah 'C.D' I have always over the years loaded 55gr projectile for the .223 and never felt the need to venture into the heavier projectile range. When I used the last of my 55 Noslers and couldn't get anymore I started using Nosler 60gr partition with indifferent results in the 1x12 twist barrel.
Then I started to hear about the great results people were having with the Sierra 63gr SMP in the 1x12 or even the 1x14 twist.
'Gillie' and a few other reckon you have to try them as they open up a whole new field of 223 shooting. The 63gr has big shoulders and is a very short projectile for its weight so evidently this allows the 1x12 and 1x14 to stabilize them well. All that I have read about them since just confirms that this is indeed true. I was hoping someone had used enough of them on deer and had a good accurate hunting load with lots of speed behind it already worked out. This would have given me a starting point to begin with. So far I have loaded a few and haven't fired a single sierra 63gr down the range. I will do so tomorrow hopefully.
Carpe Diem wrote:That's a really good explanation of why the Sierra SMP would work. Now I'm curious ... as you are, about the 63 being able to work for me also. So will be really interested in your results as the Partition to the eye looked a little less accurate but ok - and I seated them in a very similar length to the Hornady 55 SP's which are my base line of comparison.
Gillies pretty good at this stuff - just saying! so would not be putting us astray. I'll see if I can lay my hand on a few to try and I'll be shooting it with ADI brass, cci match primers and ADI 2206h if I do make a brew on this.
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