putting together a 6mm???? which one?

[model 12 toby]

thinking bout 6mmXC. will it be easy to find everything I need? should I get 8 twist or 7.5 twist? Not sure that I'll ever shoot 115's butnever know. any one ever shoot small bullets out of this fast a twist? I'd also like that option. should I maybe go with 9 twist. would they stabilize 107's?

 

[TheSnake]

Not that it makes a lot of difference but it could; can you tell us what bullet MFG you are asking about?

 

[model 12 toby]

prob shoot 105 a-maxes. maybe shoot some of bergers offereings. maybe sierra 107s I'm not certain. just trying to formulate a plan. got a model 12 action with a 7mm mag barrel that I never shoot. wanta rebarrel it in something smaller. Would a 22-250 necked up to a 6mm be a good choice.

 

[WyleWD]

I'm thinking that Nomad would be a good mentor for you on this project.

I have the 6xc in a 9 twist Kreiger that is a competition set up, and I have a 6xc in a 10 twist that is a walk around varminter with a contour 5 Lilja on it. I am quite familiar with the 6-250 as well.

My advice to you is this.... if you want to shoot light bullets (90 and under) you'll be fine with either one of them in a 10 twist. If you'd like to shoot bullets over that weight, then I'd stick with the 6xc and go with a 9 or an 8 twist depending upon what bullets you really want to shoot.

The important thing is to narrow down exactly what weight range & brand of bullets you want to shoot and go with it. Either rifle with a good barrel, properly smithed, properly loaded, and with the nut behind the trigger tight will serve you VERY well. WD

 

[357Mag]

M-12 -

Howdy !

I really like my wildcat " Deep 6 ", chamber for which is made by running a 6mm Remington reamer in "short ". No custom reamers required.

Resulting case capacity is in the 6 X 47 - 6XC class.

Deep 6 has the same long neck seen on 6mm Rem, and has an easy-to-form 26* shoulder angle.

I avoided custom case-forming die(s), by simple use of a stock 6.5 X 55 FL die; w/ its expander
ball and mandrel removed.

Deep 6 has what I consider to be, the practical minimum case capacity; for a 6mm combo varmint/target cartridge inteded for use to 1,000yd.

Deep 6 is formed form 7X64 Brenneke brass, which has the .466" base diam required by the wildcat's chamber. LR primer, and SAMMI spec brass. I use Norma, but there is also RWS.

Wildcats don't fit everyone's shooting needs, but.... THIS one sure does; for me !


With regards,
357Mag

 

[TheSnake]

12,
I think you already have a 6.5x47 so why not go with a 6-6.5x47?

http://www.6mmbr.com/gunweek093.html

For the 105 A-Max, I would go with 1-8
For the 107 Sierra, 1-8
For the 115 Berger VLD, 1-7
With these choices I would go with the 1-7 for all.

 

[hoverp]

If you want to or ever might want to try the 115 class bullets, (I love em) for LR, then 1-7.5 is min that will assure proper stab., it works just fine on SR as well.

6xc is great in my book. Very impressed so far.

 

[model 12 toby]

is it a pain in the a** necking down 6.5x47 lapua to 6mm or not really? I just might do it. I have the go and no go gauges and I'd probably just have to change the bushing in my redding die. I think that just might be the ticket.

 

[wvuredneck09]

Or just stick to the 6.5x47 and sell me the 12 (if it is stainless) lol. Good luck with whatever you decide.

 

[model 12 toby]

it is stainless. right bolt left port. no way I'm selling it.

 

[GrocMax]

Don't bother trying to fling 6mm 70g and down varmint slugs out of an 8 twist, you have to keep the velocity down below 3400 or so otherwise you get lots of Grey Ghost in the scope action, especially when the barrel gets some rounds on it. And light varmint bullets with light velocity just don't have much Splat Appeal for me. Now a 58 at 4200 out of a 12 or 14 twist- serious Splat Appeal. 8tw gets them thin jacket things spinning so hard if they touch a mosquito or even a heavy molecule of air they go POOF.

 

[model 12 toby]

hmmm. not sure what I'll do now. might go with 8 twist. 65 or 75 v-maxe maybe. still be able to shoot 107 sierras I think?????

 

[TheSnake]

hmmm. not sure what I'll do now. might go with 8 twist. 65 or 75 v-maxe maybe. still be able to shoot 107 sierras I think?????

You could go with the faster twist and run the smaller bullets a little slower. The difference in the 65gr V-Max at 3200fps and at 3500fps at 500 yards is only about 2 moa drop. Anything further out than 500 yards with the smaller bullets and you get hammered by the wind. There's one thing for sure; If you get a barrel that is too slow for the bigger bullets, you can't do anything about it. But if you get a barrel that is too fast for the smaller bullets, you can slow them down to compensate. Just more food for thought.

 

[kyreloader]

Get the 6x47, get an 8 twist and shoot the 105g Hybrids and the 87g Vmax.

(IMO-no reason to run faster than 8 twist now that Berger has 105g Hybrids-same BC as 115g bullets and can drive them faster)

 

[Darrel Martin]

I assume this is a Savage we are talking about. How much trouble is it to go from a magnum bolt face to 308 bolt face in order to shoot most of the 6mm cases or the 22-250 case mentioned?

 

[spclark]

1:8's fine for 108 & under, Berger's 115 DEMANDS 1:7 (according to them!) but with their 6mm Hybrid (when they finally start making enough you can actually BUY 'em) I don't think you need the 115. Tubb's (Sierra) 115 might work in 1:8 but 1:7.5's a safer proposition.

6XC: good factory brass or you can use 22-250 with some work; 6-6.5x47: a bit less case capacity, good factory brass; 6BR: least capacity of the three but easily capable of more when an "enhanced" chamber is used, Dasher or 6BRX.

There're even more (older but still effective) cartridge options out there with cases having more capacity but with as wide a variety of bullet choices out there you need to winnow down your intended use options (varmints with light bullets, targets with heavy) first then pick a suitable twist & barrel length, then choose the chambering that'll push 'em at an efficient velocity.

Heck there's even the 243 WSSM if you have a rifle capable of carrying a magnum bolt face....

 

[Dgd6mm]

Darrel no trouble at all, now back to subject. 8 twist 6MM Competiton Match.

 

[xdeano]

6mm SLR or 6mm CM.

flip a coin, you won't be wrong.

xdeano

 

[model 12 toby]

i have a magnum bolt face. what the deal with the 243 wssm? any info? I haven't heard much about it really. it'd be a barrel burner wouldn't it?

 

[spclark]

i have a magnum bolt face. what the deal with the 243 wssm? any info? I haven't heard much about it really. it'd be a barrel burner wouldn't it?

No it doesn't appear to be, certainly not as bad as the straight 243 from what I've learned. (I acquired a 6.5 WSSM last year but have yet to do anything with it, came along as part of a package deal I wanted the stock out of.)

There's another forum you might want to look into dealing with these variants, more info there than appears here despite having some of the same folks as contributors.

http://wssmzone.com/main/default.aspx