6br 1-14 tw 70 gr bullet on groundhogs anybody

[potatoe]

John, the 244 Remington is a horse of a different color compared to a 6 BR, and I shot the barrel out of many, 80's at 3600 with a hot load of IMR 4064.

I am on board with FJIM's statement on the 70's at 450 yards out of a 6 BR, not saying that you can't hit them further. Just saying that if you want to shoot 600 yards, choose a good platform.

I'm with this fella

 

[MrMajestic]

The 70 BK's are very accurate and their terminal ballistics are outstanding. I run them at 3850 fps from a 14tw .243AI. If you want to use them for much over 400 yards you will want to hone your wind reading ability. JMHO

 

[Frankr]

The 70 BK's are very accurate and their terminal ballistics are outstanding. I run them at 3850 fps from a 14tw .243AI. If you want to use them for much over 400 yards you will want to hone your wind reading ability. JMHO

I disagree . I don't have my 6BR anymore so I cant go out and shoot a target at 600 yards for you. The load I shot with the 70gr SBK at 3,550 FPS from my 6BR I have killed Ground Hogs at 650 Yards and it hit so hard you would have thought I shot them with a 7 mag. I have marked my own misses with that load. I think accuracy of the load makes a big difference at that range. If you are shooting a 4" group at 600 yards you are going to miss 50% now add wind and you are down to 20% I always felt the advantage the 6BR gave me was accuracy. I have been shooting a 6XC with a 105 and 500 yards is kind of a easy shot even with wind. Now 700 yards I have been around 3 to 4 inch groups and I have had a few days where I have held 21" of wind to hit the target at 700 so at 700 yards on Ground Hogs I am like 50% hits. Well our ground Hog hunting say last two years has been bad very few Hogs to shoot but we can find a few good day may shoot 3 or 4. But when I was young I remember shooting almost none stop at times. I have shot tons of them. We would go after work in the evening a 3 HR hunt and shoot 10 to 15 in one spot. But we just don't see them anymore I don't even see hunters anymore. everyone says coyotes got them.

What I disagreed with is the load with the 70GR SBK I felt extended my range to 600+ yards from my 6BR. The load I killed tons with was a 65 V Max at 3,500 and around 450 Yards was near max over 450 with that bullet and load I missed more than I hit.But that 70gr and the load I shot was unreal. So I think the accuracy of the load is critical at that range and naturally a real windy day is not going to good. What I seen MrMajestic was I could not emagine that load a 3,850 FPS with the 70 SBK so it must be the accuracy .

 

[AckleymanII]

I disagree . I don't have my 6BR anymore so I cant go out and shoot a target at 600 yards for you. The load I shot with the 70gr SBK at 3,550 FPS from my 6BR I have killed Ground Hogs at 650 Yards and it hit so hard you would have thought I shot them with a 7 mag. I have marked my own misses with that load. I think accuracy of the load makes a big difference at that range. If you are shooting a 4" group at 600 yards you are going to miss 50% now add wind and you are down to 20% I always felt the advantage the 6BR gave me was accuracy. I have been shooting a 6XC with a 105 and 500 yards is kind of a easy shot even with wind. Now 700 yards I have been around 3 to 4 inch groups and I have had a few days where I have held 21" of wind to hit the target at 700 so at 700 yards on Ground Hogs I am like 50% hits. Well our ground Hog hunting say last two years has been bad very few Hogs to shoot but we can find a few good day may shoot 3 or 4. But when I was young I remember shooting almost none stop at times. I have shot tons of them. We would go after work in the evening a 3 HR hunt and shoot 10 to 15 in one spot. But we just don't see them anymore I don't even see hunters anymore. everyone says coyotes got them.

What I disagreed with is the load with the 70GR SBK I felt extended my range to 600+ yards from my 6BR. The load I killed tons with was a 65 V Max at 3,500 and around 450 Yards was near max over 450 with that bullet and load I missed more than I hit.But that 70gr and the load I shot was unreal. So I think the accuracy of the load is critical at that range and naturally a real windy day is not going to good. What I seen MrMajestic was I could not emagine that load a 3,850 FPS with the 70 SBK so it must be the accuracy .

I too shoot the 70g Blitz king, 70g TNT, and 70g Ballistic tip at 3850, Rem Case, CCI 250, 48.5g of Win 760,243 AI with zero freebore, 4030 is the max load with Win mag primer at 50.5g. At 3850, I NEVER full length size. 244 AI is even better, 14T Shilen with the 51.5g of 760 at 4150, and bug holes abound. Chucks can look like they turned into Cruise missiles fly'en 30'. The loads mentioned in the 243 AI and 244 AI shoot bug holes, if it is not in the very low 2's, I will not shoot it.

The issue with lobber loads is shots under and over, barely miss over their heads, or put dirt in their eyes. Std wind is 3-8 mph on a great day, so counting on a day with dead calm winds is a fantasy, but the part of the country you hunt in will vary considerably. Range finders can be worthless in picking out a chuck head in a field, so you are on your best guess with no follow up shot on a re-do.

Every chuck shooter has to play the game in a way that is fun for them. I started shooting chucks in '79, so I have refined what I like over the years. I like horsepower to give me a larger window for error on range estimation and wind drift, and accuracy in the extreme. As far as the fun factor, fly'en chucks doing helicopters, acrobatics, make for very humane kills.

I wish that every chuck hunter could experience a 244 AI with a 14T shooting 70g Sierra Blitz kings at 4050-4150 fps...and the 60g Sierra at 4400 fps that explodes a full grown chuck like a paint ball hitting a concrete wall. I have seen more than a few chuck heads take off like a guy attempting to kick a field goal on the 60 yard line!

 

[John Russell]

I think when discussing bullets for woodchucks/groundhogs, the issue if wind drift or "wind bucking" is a red herring.

If you are shooting prairie dogs, you can spot your misses by the puff of dust in dry prairie, and make an instant 180 correction and hit on the second or third shot....

But with ground hogs, you cannot see misses 98% of the time, cuz when you see 'chucks, they are doing what they love to the most - munching knee deep in grass. And misses do not show in grass.

70 grain bullets in the varmint class, have BCs of 0.260-ish to 0.300-ish, and at 700 yds, will drift 4 to 6 feet in a 5mph cross wind... which would be a good day in New England.

So.. whether the bullet drifts 4 feet instead of 5 feet, makes no difference, because you will have no way of judging the wind, and no way of correcting for the miss, cuz you can't see it.

The solution to wind drift is not more BC (with the ensuing price of faster twists, which brings on heavier jackets, which brings on failure to expand)...
... the solution to wind is simply putting yourself in the 6 or 12 o'clock position to the wind when you are in the field. When you get on a field, put yourself in a position when the wind is in your face or at your back, and forget wind. Don't be a glutton for punishment.

As to over or under shots - that is simply a matter of having good come-up charts and a decent range finder... range - dial - hit.

I have tried 105's in 6mm rifles, and my experience has not been good - more often, they act like ice-picks
Even 87gr V-Maxs have failed to deliver a clean kill when they were well placed, on occasions.

 

[Frankr]

so your saying the 240WM is just about right for the job ?
I just kind of made a trade deal for one/even up trade

 

[AckleymanII]

Winds on the plains of South Dakota are brisk, and does not let up for days.

700 yards........hummm........

6AI= 6 Gibbs= 240 WM

Main thing is to know your limitations with your loads, or just give them a Hail Mary shot.

The vast majority of my chuck shooting has been done at 550 and less, and from 375-450 is where you gimp up quite a few, fast 70's really shine in this range in 6mm. Really fast 87V will start having an edge somewhere in the 550 area, and in a 244 AI they are all over 3500-3600+ depending on the barrel and length, spun out of a 8 or 11T, R#19 with fed 215's. I have struggled with the 87g v in certain lots.

I don't know how fast a 105 A max can be spun before the boat tail starts to cave in from rotational torque, I am pushing them at 3270 out of a 31" long X Caliber barrel, 6 XC , R#17, Palma brass, cci 450's. I would suspect that in the neighborhood of 3400, they may start blowing up...nothing worse than shooting blanks at chucks.

I have never had a 8T, 244 AI, but a 8T, 22/243 AI and perhaps a 22/6 AI is in the plans. 75g and 80g A max are great for coyotes as reported by very experienced coyote hunters, but for chucks....I don't assume anything. As always, bullet performance at distances is an unknown for me in these fast twists and I would rely on others for advise. I really despise seeing crawlers.

In the past, we hiked to get into position so that distances were manageable with the conditions of the day, which made for some very enjoyable chuck flying hunts.

Sierra really has their act together in the Blitz King line of bullets, they are very balanced in how those plastic tips are inserted. It seems like varmint hunters are always making a compromise between a bullet with very high bc and terminal ballistics in ranges over 550 yards.

 

[potatoe]

Why are we talking about 80+gr. bullets on a 14t 6mm thread?

 

[snert]

Why are we talking about 80+gr. bullets on a 14t 6mm thread?

Agree. At 14T he just has to realize that to get distance he needs speed. match the cartridge to the distance, and it is all fun. A 275 yard Pd with a Hornet is as fun as a 500 yard 22-250 chuck which is as fun as a 850 yard chuck with a 243AI 105...it is a matter of perspective.

 

[AckleymanII]

Why are we talking about 80+gr. bullets on a 14t 6mm thread?

Because the Sierra 80g blitz does stabilize in a 6 AI-14twist and at 3800 fps, with win 760 and R#19, shoots bug holes. This combo maximizes a 14T-6mm, and the Sierra 80g Blitz puts wings on chucks at 3800.

Got any used 6mm 14T MHV Benchrest rifle barrels laying around, 24" long? The 6 AI case eats up any worn throat and gets you into fresh lands/grooves.

 

[17VLD]

Ackleyman what brass do you use for the 244AI?When I used to to shoot my 11twist that Charlie Durham chambered I used Win brass.It loved the 87 V-Max,the PD's didn't though.After the barrel wore out that rifle turned into a 6-284 that shoots 115's.I have missed that old Ackley thinking now about turning a used 14 twist 6br Nesika into a 244AI.Happy to hear that the Sierra 80 works well in that clambering with only 24" of barrel.
Matt

 

[AckleymanII]

Ackleyman what brass do you use for the 244AI?When I used to to shoot my 11twist that Charlie Durham chambered I used Win brass.It loved the 87 V-Max,the PD's didn't though.After the barrel wore out that rifle turned into a 6-284 that shoots 115's.I have missed that old Ackley thinking now about turning a used 14 twist 6br Nesika into a 244AI.Happy to hear that the Sierra 80 works well in that clambering with only 24" of barrel.
Matt

I use Winchester brass, but Rem works very well. I have made brass from PPI 7x57 and turn necks, the brass is good. That 80g Sierra Blitz pops louder than any bullet I have ever shot.

Win 760 and H414 will give you much longer barrel life vs stick powders. IMR 4831 wiped out 10" of barrel on my first 10T shooting 85g Sierra bthp. Also, the 70g in the 6 AI are really fantastic, your barrel will pick a winner, bug holes abound.

 

[Badbob]

I'm shooting 66g Fowlers for Pdogs. Very happy with the performance with very little load work. You can see one of my 3-shot groups here;

http://forum.accurateshooter.com/th...n-for-6mmbr-goat-round.3913802/#post-36870199

Criterion barrel 1:10 twist

 

[AckleymanII]

You should try the 70g Speer Tnt. These bullets shoot bug holes, no kidding. Nothing short of amazing!

 

[Hntndad]

Keith, any experience with the 70gr nosler varm.?? I'm thinking of trying them out in my 243ackley and comparing them to the 70 blitz. They're $15 box (100) at Midway at the moment. Not a boattail and the bearing surface looks to be greater as compared to the Sierra. At $15 a box what's there to lose?

 

[Bobbyboy6br]

I hunted groundhogs for years with a 14T 6BR shooting the 65V MAX and the 70Gr sierra BK. 500 yards is quite easy. I have had good hits at 650 yards with the 70GR BK. running around 3,550 FPS. hits beyond 500 yards are in the low percentage. 650 is doable . I know a few guy's with kills at 900+ yards with a 55gr in a 22/250 so if you can hit them it will kill em. But it is droping fast and the wind is the big factor. we had hogs at 600 yards and you can shoot all day at them on a windy day and not get them. be right at them but never hit em. calm day you can. good fun and super accurate. I hate to say it but I have gone on to the 1-8 twist where 500 yards is almost a can't miss. I do miss my 14T 6BR's but I am having too much fun with the 6XC in the 1-8.

What grain bullet are you using in the 1-8 t .?

 

[Frankr]

I use the Berger 105 HVLD

 

[Bobbyboy6br]

For years, I hammered p. dogs, jack rabbits, ground squirrels, Rock Chucks in the Spring and Summer, then Coyotes in Mexico all Winter. I really got tired of switching benches in Register BR matches.

I am a tad different than most on this thread. First, I like a variable powder scope for varmints, high power, no fixed power scopes for me.

Second, I made my own bullets while shooting BR, changed the opening on the HP and made varmint bullets out of them, 9s ogive.

Concerning chucks, they can be a tough critter to kill out right, and I DO NOT LIKE DRAGGERS! The 70g bullet in a 6 BR has a trajectory like a 45/70 or so it seems in the field. Past 400 you are shooting over and under a lot. A 6 BR really excels with a 55g Nosler/Sierra Blitz king at 3900 with AA2230 or H335, up to a 65g (~3700) really stomping on the gas with aa2230.

The Dasher and 6 BRX starts to excel with the 70g bullet as velocity is in the 3650+ area depending on barrel length, and the 6x47 Lapua and 6 XC is even better at 3700+ without pressure issues.

A good range finder is a must and a chucks head sticking up out of the grass may be hard to get a range on. You have a lot of head or head/ shoulder shots on chucks, so your target is small. Smallish winds seem to make the bullet disappear in the grass like a phart in the wind, and you have absolutely no idea of where the bullet went.

My advise as a long time varmint hunter is to get that 14T re chambered to a 6x47 Lapua or better yet a 243 AI, since you are wanting to shoot 600 yards. The 243 AI's are as user friendly as a 6br in the 14t with 70g bullets, very, very tiny groups at 3800+-3850, and the 6AI is all over 4000+ fps with the 70g.

I like to see chucks real dead, real quick. Better yet to see them fly like a tally bon shot with a 20mm cannon. It is not uncommon to take the top of their heads off at 300 yards, you need flat shooting with some wind bucking ability. 70g Sierra blitz king trumps all 70g bullets, they are worth every penny of the extra money. Speer 70g TNT, 70g Nosler are great second choices along with a Berger 69g if you are a Berger fan.

Chuck shooters will have their favorite rifles. I want speed with amazing accuracy with a bullet that expands violently, and I have little if any patience with any kind of round that is not super flat shooting, lesson learned from having spend a lot of time laying on my belly on Ski slopes to alfalfa fields.

I have two slow twist 6 BR's, 12T and 14T. Both shoot the 55g Nosler/55g Blitz king 3900+ and the 65g Vmax 3700 fps both with AA2230, the 55g Nosler prints smaller groups at 300 yards(3/4") than any other bullets, and much flatter trajectory...was really shocked that they out shot my 70g Low Drag 9s bullets, but these two rifles were also chambered with zero freebore reamers. Before the 55's came out, I shot the 60g Sierra's out of a 14T with H335 at 3700 fps, groups so small it will absolutely shock a benchrest shooter.

Bobby, you said you have the 8T, 6 BR also...focus on that rifle for your longer shots. Remember, that you can poke a hole in an animal and it may take two weeks to die...always use enough gun. Changing your platform to a 6x47 Lapua is going to change your varmint hunting experience, and a 243 AI/6 AI even better yet. It is your party,chase your dreams.

Thank you so much for answering me back the 6br 1-8 t is my first choice with the Serria 107 gr hpbt match varget 30.0 gr fed 205m

 

[snert]

You should try the 70g Speer Tnt. These bullets shoot bug holes, no kidding. Nothing short of amazing!

If you ever get tired of your 6mm ai let me know...I want to try one that is "not quite gone"...has some life left.

 

[snert]

Thank you so much for answering me back the 6br 1-8 t is my first choice with the Serria 107 gr hpbt match varget 30.0 gr fed 205m

I find the 105 amax opens better than the sierra. I shoot same load except use AMAX