SmallCaliberCentral

I was having one built for predators. That gunsmith said that in his opinion it was the best all around predator caliber period. He says it is very low recoil, easy and cheap to load for, shoots relatively large bullets at decent speeds, is fur friendly, can be used for small to medium deer at ranges 200 yards and less, has a very long barrel life, and is extremely accurate.

I had a major problem with the smith so I am taking my business elsewhere but don't know if I should stick with the caliber since he is the one who got me on it to begin with. Any thoughts on this caliber for coyotes and bobcats?

Sounds good. Go for it! Or you could just shoot a .243 I have one with a 18 inch heavy barrel that I have used for years with a 6x18 scope if you would like to buy it. Its all dialed in glass bedded nice trigger shoots tight groups. I know the 6x47 would work good but so will the .243 it is also cheap to reload.

Ryan, yeah the .243 is nice but a lot more to reload and a lot more recoil then the 6x45 or 6x47 (although none of them kick a lot). Looks like I am going to go with the 6x45 since it uses .223 brass and that will always be around.

don't get me wrong it will be a good round.

6X47 necked down to 20 cal, 1-9 barrel will fire a 50 grain berger at just over 4000fps with about 1500 ftlbs energy. Or you could just stick with the 6X47 standard its a great round.

Really good round. I've got one on a Rem action (modded to allow longer than 223 length rounds in the magazine), fluted #5 barrel, HS stock and Canjar trigger. I normally shoot the 70 gr Sierra BK at about 3100 fps, using about 28 gr of powder. The 87 Vmax can be pushed up to about 2800 fps, and the light bullets to about 3300 fps.

It's easily my favourite hunting rifle (and there's plenty of alternatives in the safe). It goes way further than you'd expect, and has plenty of punch when it gets there.

That's great info on the 6x47. I am leaning toward the 6x45 (ballistically almost identical to the 47) in order to use .223 brass instead of 222 Rem Mag which has be discontinued. It sounds as though you thought of the samething, is that why you modded it to use .223?

I had a 6x45 built for my main calling gun and think it is about perfect. 55gr NBT at 3350fps. It is a very easy cartridge to work with. If you want to stay with a small bolt face but want a little more UMPH, think about a 6mmx204 Ruger. It would equate to a 6x47mmAI with out the fire forming and brass is everywhere.. I built a 25x204 and it's a great little deer round, but a little heavy handed for coyotes (I save fur). I'll find the right combo for it though. If you decide to bulid a small boltface 6mm I wouldn't go any slower than a 1-10 twist it will work well with all but the over 100gr VLD bullets.

Sorry about your troubles with the smith , I had Pac-Nor install the 6x45 barrel on my Rem 600 and build the 25-204 barrel for me and they did nice work.


Good luck

erich

Erich 6mm/204? Haven't heard about this can you elaborate on it?

I have talked to several more smiths since this started and they have advised me not to shy away from the 6x47 for brass reasons anyway. They say I will wear out the barrel before brass becomes an issue. That says a lot because this caliber is very barrel friendly.

I am looking at a Krieger #4 22" S/S barrel, Stiller Precision Predator action,Timney trigger, Boyd's Ross Thumbhole laminate in Desert Camo and a Nightforce 3.5-15x50 illum. scope with NF rings.

augmike

The 6mmx204 does not exist at this time that I know of, but neither did my 25-204. It is a very logical wildcat, and easy to build.

The 204 Ruger case is the 222 Rem Mag with the shoulder moved forward, the body straightenned , the shoulder changed to 30 degrees. BINGO improved 222 Rem Mag. then they necked it to .20 cal. Open it up to 6mm and you have a 6mmx47 IMP with no fire forming and a selection of brass from ALL makers that is at least $8.00/100 cheaper.

Chamberring should be a piece of cake also. Cut the chamber with a 204 Ruger reamer with a 6mm pilot and finish the neck and throat with the 6x47 reamer.

Load data is almost there, start with 6x47 data and work up.

I like Hornady dies and they will build you a custom 2 die set for $108. Another $50 will get you a custom Lee collet die.

This will not fit a CZ action, as bullets need to be seated out much farther than the parent 204.

PM me if I can be more help.

erich

erich

Wow interesting concept. What would you see as advantages of a 6mm-.204 over the 6x47? Obviously the brass is very available and made by different companies then Rem. What would you expect from a ballistics standpoint?

I'd say 3000fps with a 85gr bullet and a 24" barrel, I'm getting 3000fps with an 85gr NBT out of a 22" barrel on the 25-204. Post looking for info on the 6x47mmIMP and that should give you a ball park figure.

erich

Why go through the hassle? 243 has cheaper brass and the same bullets.

85 GR. BAR XBTC 85 H4350 .243" 2.560" 42.0 2967 39,700 CUP 45.5C 3214 49,600 CUP
85 GR. BAR XBTC 85 H414 .243" 2.560" 42.0 3048 41,400 CUP 45.0 3306 50,200 CUP
85 GR. BAR XBTC 85 H380 .243" 2.560" 40.0 2967 43,400 CUP 43.0 3134 48,800 CUP
85 GR. BAR XBTC 85 Varget .243" 2.560" 35.0 3019 44,200 CUP 38.0 3212 50,400 CUP
85 GR. BAR XBTC 85 H4895 .243" 2.560" 35.0 3015 45,100 CUP 38.0 3186 49,900 CUP
90 GR. SPR SP 90 H4831 .243" 2.625" 45.0 3010 43,700 CUP 48.0C 3203 50,800 CUP
90 GR. SPR SP 90 H4350 .243" 2.625" 42.0 3039 44,400 CUP 44.5 3185 50,600 CUP
90 GR. SPR SP 90 H414 .243" 2.625" 41.0 3024 43,600 CUP 43.5 3185 49,600 CUP
90 GR. SPR SP 90 H380 .243" 2.625" 38.0 2892 43,100 CUP 40.5 3060 49,500 CUP
90 GR. SPR SP 90 Varget .243" 2.625" 34.0 2964 44,800 CUP 36.5 3106 50,400 CUP
90 GR. SPR SP 90 H4895 .243" 2.625" 34.0 2967 44,900 CUP 36.5 3114 50,800 CUP
95 GR. NOS PART 95 H1000 .243" 2.650" 45.0 2946 44,900 CUP 48.0C 3077 50,000 CUP
95 GR. NOS PART 95 H4831 .243" 2.650" 42.0 2930 47,000 CUP 44.5C 3052 50,700 CUP
95 GR. NOS PART 95 H4350 .243" 2.650" 39.0 2917 45,800 CUP 42.0 3087 50,500 CUP
95 GR. NOS PART 95 H414 .243" 2.650" 39.0 2933 43,800 CUP 42.0 3138 50,700 CUP
95 GR. NOS PART 95 H380 .243" 2.650" 36.0 2779 43,000 CUP 38.0 2922 49,100 CUP
95 GR. NOS PART 95 Varget .243" 2.650" 33.0 2870 45,000 CUP 35.0 2996 50,200 CUP
95 GR. NOS PART 95 H4895 .243" 2.650" 33.0 2865 45,000 CUP 35.0 2990 50,700 CUP
100 GR. SPR BTSP 100 H1000 .243" 2.650" 44.0 2876 45,700 CUP 47.0C 3000 49,800 CUP

acloco

If your starting with a small bolt face action it will cost alot to change it. The 6mmx204 uses less powder to do the samething. You lose the COOL factor. A small boltface 6 seams easier to get to shoot small groups (243's never made it as a benchrest cartridge).

erich

"(243's never made it as a benchrest cartridge). "

Might want to check this info....

http://www.davidtubb.com/6mmxc.html

http://www.davidtubb.com/ammo_home.html

http://www.zediker.com/tubb/tubbgunspecs.html

I don't have the article handy...but there is another gentleman that is shooting a standard chamber 243 in competition this year....and is beating everybody else.