matchking Posted March 29, 2014 Report Share Posted March 29, 2014 After deciding that there isn't anything really better out there in 22cf than the swift i am using, I am going with a 6mm. Don't want to shoot 105gr class bullets i'm looking at 70gr bullets. So who using what. Cheers Sean Link to comment Share on other sites More sharing options...
Tuck Posted March 29, 2014 Report Share Posted March 29, 2014 I'm not using but quite fancy a 6-284 or maybe a dasher!! Link to comment Share on other sites More sharing options...
Dac9976 Posted March 29, 2014 Report Share Posted March 29, 2014 I've had a 6mm BR for about 6 months now. Using 87gr vmax... Nice bit of kit, very happy with its performance:) Link to comment Share on other sites More sharing options...
jcampbellsmith Posted March 29, 2014 Report Share Posted March 29, 2014 My late 243 AI sent 70gr SMKs zipping along at 3404 fps and tremendous accuracy. Regards JCS Link to comment Share on other sites More sharing options...
John RPA Posted March 29, 2014 Report Share Posted March 29, 2014 6mm slr Link to comment Share on other sites More sharing options...
Ro6.5 Posted March 29, 2014 Report Share Posted March 29, 2014 I've been using a 6-284 for about 2 years now. Shooting 70g blitz kings at 3850fps with no significant pressure. It's a great caliber! Easy to form, fast and flat, accurate! Great for foxes and deer. In my eyes the benefit over a 243 AI is there is no need to fire form there for extending barrel life over the 243AI. probably not the best on barrel life but I try not to shoot paper just use it in the field. I,d recommend one! R06.5 Link to comment Share on other sites More sharing options...
17 Rem Posted March 30, 2014 Report Share Posted March 30, 2014 My late 243 AI sent 70gr SMKs zipping along at 3404 fps and tremendous accuracy. Regards JCS Sounds a mild load. My standard 243 is right on 3500 fps with 70 grain Ballistic Tips. Link to comment Share on other sites More sharing options...
17 Rem Posted March 30, 2014 Report Share Posted March 30, 2014 I've been using a 6-284 for about 2 years now. Shooting 70g blitz kings at 3850fps with no significant pressure. It's a great caliber! Easy to form, fast and flat, accurate! Great for foxes and deer. In my eyes the benefit over a 243 AI is there is no need to fire form there for extending barrel life over the 243AI. probably not the best on barrel life but I try not to shoot paper just use it in the field. I,d recommend one! R06.5 My take on that is that fireforming for the Ackley might as well be done in the course of your normal shooting. The 243 I had shot sub half MOA when fireforming so I just used it to shoot stuff! I think that a 243 AI throated for 65 grain V Max or 70 grain Ballistic Tips would suit Sean down to the ground. Link to comment Share on other sites More sharing options...
gunner Posted March 30, 2014 Report Share Posted March 30, 2014 ( EDIT as you say you are 'going with a 6mm' and not 'going with a HOT 6mm' i thought the 6BR with 70 grainers would be a serious contender) ! -and matchking did say 'so who using what' and as dac9976 is one of the 6br users to post there 6mm ! im sure others will also say 6BR HOT 6mm you got to think about barrel life surley , ATB tim.. Link to comment Share on other sites More sharing options...
Scotch_egg Posted March 30, 2014 Report Share Posted March 30, 2014 The OP wants experience of a HOT 6mm and a 6mmbr is certainly not a hot 6mm!!! 6mm remmington AI 6mm/.300WSM 6mm/.284 6mm Catbird 6mm-06 Link to comment Share on other sites More sharing options...
matchking Posted March 30, 2014 Author Report Share Posted March 30, 2014 I've been using a 6-284 for about 2 years now. Shooting 70g blitz kings at 3850fps with no significant pressure. It's a great caliber! Easy to form, fast and flat, accurate! Great for foxes and deer. In my eyes the benefit over a 243 AI is there is no need to fire form there for extending barrel life over the 243AI. probably not the best on barrel life but I try not to shoot paper just use it in the field. I,d recommend one! R06.5 What twist barrel are you using? Also what powder? Cheers Link to comment Share on other sites More sharing options...
Ro6.5 Posted March 30, 2014 Report Share Posted March 30, 2014 What twist barrel are you using? Also what powder? Cheers I am using a 26 inch 14 twist throated for 55g-70g. Loaded with 55.5g of reloder 17. I've had 243 ai's and by far prefer the 284. Link to comment Share on other sites More sharing options...
1967spud Posted March 30, 2014 Report Share Posted March 30, 2014 im currently shooting a 243ai using a 55g pill at 4200fps thats hot Link to comment Share on other sites More sharing options...
gbal Posted March 30, 2014 Report Share Posted March 30, 2014 "Hot",why not! But it is quite interesting to see what extra FPS bring. Looking at the 26Nosler,what it's extra 300fps offer is 15 yards more Point Blank range (deer shooting) over say 264Winmag,but at distance that is already at the limits of what most stalkers would consider. AS some posts note,performance at 'normal' fps is good,and accuracy won't be worse.When the math is done,it's likely that the 'hots' will extend ranges by a few yards,maybe 50y if adjustments are allowed,but range increases misses-not the cartridges' fault,of course.More barrel wear,though that is a clear choice/cost. Nothing at all against wildcats,or safe 'hot' numbers,have some,and understand the interest some have in the 'mostest' velocity,just wonder if it is really noticeable-in a positive way- for most users? Of course an X Ackley will drop foxes,but so will the X.Target shooters,of course,will pick up points bought by fps reducing their wind reading errors,though this is more iffy for field shooters (no sighters etc.) Just a thought,I like my 6.5 AI,but wonder if a 243 rebarrel in a wildcat is worth the hassle? Gbal Link to comment Share on other sites More sharing options...
Elwood Posted March 30, 2014 Report Share Posted March 30, 2014 The OP wants experience of a HOT 6mm and a 6mmbr is certainly not a hot 6mm!!! 6mm remmington AI 6mm/.300WSM 6mm/.284 6mm Catbird 6mm-06 Ditto Link to comment Share on other sites More sharing options...
mildot Posted March 30, 2014 Report Share Posted March 30, 2014 .243ai here. I use mine with 105gr @ 3150fps for everything from bunnies, Fox, deer and target. I have done about 1500 rounds and the lands still look sharp. Fire forming loads were dead accurate so don't worry about fire forming. They will be just as accurate. Link to comment Share on other sites More sharing options...
Laurie Posted March 30, 2014 Report Share Posted March 30, 2014 Taking gbal's point, it's maybe instructive to use Sierra Infinity's Maximum Point Blank Range calculator for a 6mm 70gn bullet at different MVs. The MPBR is the distance that with an optimal zero distance can see a shot taken without sight alteration for a given size of 'kill zone'. That is for a 3-inch dia. kill zone, the bullet trajectory lies within a path that does not deviate from the central elevation (or aiming mark) by more than + or - 1.5 inches at any distance between the muzzle and the target up to the PBR. Beyond the PBR, shots drop progressively lower with greater distance unless the sights are adjusted to compensate. 6mm 70gn Sierra BlitzKing 3,200 fps .......... 237 yards MPBR (zero @ 205yd) ............ 9.45" 300 yd drift .......... 13.31" 350 yd drift ........... 18.02" 400 yd drift 3,400 fps .......... 250 yards MPBR (zero @ 217yd) ............ 8.66" 300 yd drift .......... 12.15" 350 yd drift ........... 16.39" 400 yd drift 3,600 fps .......... 263 yards MPBR (zero @ 228 yd) ........... 8.03" 300 yd drift .......... 11.22" 350 yd drift ............ 15.1" 400 yd drift MPBR based on 3-inch dia. 'kill zone' and standard ballistic conditions. Wind drift in a true 90-deg 10 mph crosswind. Light bullets at high MVs give flat trajectories which increases the PBR and makes it easier to take no sight adjustment shots or with reduced hold-over for those beyond the MPBR distance. They offer no advantages to known distance shooters as a light bullet moves more in the wind than a well designed heavier model - hence the use of heavy-for-calibre bullets in long-range target shooting. So far as varmint shooting goes, the hot 20s epitomise the light bullet / high MV / flat trajectory approach, However, ballsiticians such as Bryan Litz argue that in a prairie type environment laser rangefinders are so accurate that the shooting becomes 'known distance' and it is beneficial to switch to heavy bullets as they cope better with the wind. if you read "A Varmint Hunter's Odyssey", an in-depth look at varminting at all ranges, the calibres become larger, the bullets heavier and the cartridges bigger in line with distance up to .40 wildcats using specialised long-range sniping kit for 1,000 yd + rockchucks on outcroppings or across canyons. Not being anything other than a paper puncher myself, I have asked foxers here if the RF / heavy bullet approach is usable in daylight shooting in our conditions and the answer is generally 'no' due to rough uneven ground conditions and taking quick shots. What the 70gn SBK and three MVs + PBR figures do show though is that you pay a great deal in terms of powder and reduced barrel life to get relatively small trajectory and wind drift improvements. The move from 3,200 fps to 3,600 increases the MPBR by a mere 26 yards! Link to comment Share on other sites More sharing options...
NICK Posted March 30, 2014 Report Share Posted March 30, 2014 If you want something different and really want to push things there is the .240 Incinerator. 70 grain Nosler bullets at 4400fps. www.singleactions.proboards.com/thread/8447 Nick. Link to comment Share on other sites More sharing options...
jcampbellsmith Posted March 30, 2014 Report Share Posted March 30, 2014 Sounds a mild load. My standard 243 is right on 3500 fps with 70 grain Ballistic Tips. I didn't try to get warp speed, I just worked up an accurate load for practicing with and then chrono'd it. As a policy I try not to achieve warp speed. Regards JCS Link to comment Share on other sites More sharing options...
jcampbellsmith Posted March 30, 2014 Report Share Posted March 30, 2014 .243ai here. I use mine with 105gr @ 3150fps for everything from bunnies, Fox, deer and target. I have done about 1500 rounds and the lands still look sharp. Fire forming loads were dead accurate so don't worry about fire forming. They will be just as accurate. I like this approach, especially if I've the option to get a fresh barrel with the same reamer so I don't have to chase around for fresh dies. My 243 AI was fun, but I spent a lot on dies and I couldn't easily get the same chamber cut again. I'm looking at another Ackley just now but the cost of dies is intimidating. Regards JCS Link to comment Share on other sites More sharing options...
gbal Posted March 30, 2014 Report Share Posted March 30, 2014 If you want something different and really want to push things there is the .240 Incinerator. 70 grain Nosler bullets at 4400fps. www.singleactions.proboards.com/thread/8447 Nick. So that's what the 26 Nosler is for-the base cartridge for a hotter 6mm incinerator! :-) Gbal Link to comment Share on other sites More sharing options...
Ro6.5 Posted March 30, 2014 Report Share Posted March 30, 2014 .243ai here. I use mine with 105gr @ 3150fps for everything from bunnies, Fox, deer and target. I have done about 1500 rounds and the lands still look sharp. Fire forming loads were dead accurate so don't worry about fire forming. They will be just as accurate. My 6x47 lapua shoots 105amax at 3200 but I wouldn't call that a "hot 6mm". Pls Don't take that the wrong way Link to comment Share on other sites More sharing options...
mildot Posted March 30, 2014 Report Share Posted March 30, 2014 My 6x47 lapua shoots 105amax at 3200 but I wouldn't call that a "hot 6mm". Pls Don't take that the wrong way jeeeese! I thought 3150 was quick Link to comment Share on other sites More sharing options...
nowler Posted March 31, 2014 Report Share Posted March 31, 2014 how about a 6/270wsm. i forget how fast the 55 b-tips were going out of it but it was insane.... Link to comment Share on other sites More sharing options...
OSOK Posted April 1, 2014 Report Share Posted April 1, 2014 4,530 ft/sec , Hope to get up to the Highlands soon for a catch up . OSOK Link to comment Share on other sites More sharing options...
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