6mm

My 700 didn't like those or 107s. Best performance was with 85gr Sierra.
However,same twist barrels can behave differently.
 
6mm......Remington? 243? 243 WSSM?

I can tell you that 115 Bergers won't even work well in a 7.5 twist being pushed by a 6XC at 2950. They need lots of RPM. DTAC's work ok in 7.5 and I have even heard 8Twists will work if pushed hard. I use 1:7 in my latest 6X47 Lapua for 115's explicitly
 
I am pretty sure that a 9 twist won't stabilize 115 gr projectiles. I am just collecting the bits to build a 6-284, 1-7 is what I have and I expect it to work just fine.
 
243 pushes them hard enough that a 9 twist would probably work with 107's. 105 Amax specifies 1:9.

It aint the weight, its the length that determines the requirements of RPM and thus twist. Problem is, 115's are only out there in a couple of brands and they are really long.
 
donp said:
I am pretty sure that a 9 twist won't stabilize 115 gr projectiles. I am just collecting the bits to build a 6-284, 1-7 is what I have and I expect it to work just fine.
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You're gonna get to shoot my 6X47 on Sunday! I'm loading you some ammo as we speak!... Versatile at 0900 buddy!
 
Obtunded.
I'm guessing your 7 twist barrel in .243 is a Krieger. They are not listed on the web site. Are they a custom build? If so how much extra are they and what kind of wait time would be expected?
 
7 twist is a custom twist, but I have a 1:7 30" (finished length) straight blank in stock right now, so wait time would be what it takes to get it to you,

But if a different contour is what you're after, the wait is 16-18 weeks right now and the custom twist is an extra $25 US
 
^mm and twist rate?

Obtunded, a 6x47L in a 7 twist, "make sure you have some of that gun juice in the barrel, or won't last over 100 rounds!!!!!!! I'd like to hear how the 115gr performs for you, so far I haven't heard much on them for long range.
Bill
 
I did up an empiricle load of 38 grains of N560 and seated my 115's 10 thou in past first land contact. I did this in preparation for ladder testing. My "Breaking In" a barrel consists of 2 or 3 shots to flatten the rough spots, and then I get down to shooting..... At 120M, all 5 shots were touching.

I've been waiting for a warmer day to ladder test and fine tune the load as there isn't much point in developing a -10C load when I shoot in +20-+40

Believe it or not, I DID gun-juice the barrel! ;)
 
Rembo said:
Has anyone tried the 115 gr bullets in a 9" twist factory 700 in 6mm?
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yeah, however im not sure if my 6mm 700 is a 1:9 though, its about 25 years old. Accuracy at 200 yards was fine though.
 
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