6mm /.243 hunting success on Big Game

[nm.otter]

The term magnum came from wine bottles, and I believe the first cartridge to use it was the 357

Weatherby and Lazzeroni missed the boat.
.257 Jeroboam, anyone?

 

[BLJ]

Nah. You shoulder shoot them, you effect the spine which drops them with anything. Beyond that, there are bullets in 6mm that create some of the largest wounds of any caliber and any bullet ever made to this point.

I’m pretty sure these have a visible impact. grin




From another thread-


Remember this is culling. Not hunting.

If you just hit ribs, it’s good- very effective.
If you hit bone, very likely you won’t like it.

2,100’ish FPS impacts. Photos and animals are unmodified.

Quartering too- shot entered center chest… How we walked up to it. A 9-10” wound.

Facing directly away. 2,105fps impact. Entered center of rear ham- 10+ inch hole. TC blew stomach out mid belly, bullet traveled all the way through the chest and through the heart. Everything inside body cavity was wrecked.

Heart-

116gr TMK, 2,105fps impact.

116gr TMK, 2,424fps impact.

View attachment 1019928


View attachment 1019929

View attachment 1019930

Do the 116’s produce a significantly larger wound channel than the 95 at the same velocity?

 

[Formidilosus]

Do the 116’s produce a significantly larger wound channel than the 95 at the same velocity?

Ehh. Haven’t shot them side by side. My “feeling”- is yes. They have produced larger exits than 95gr TMK’s.

 

[HairyScandinavian]

Case capacity in cubic inches (minus the neck) divided by the bore diameter (in inches) squared. It's a dimensionless number which can also be derived from ml and mm.

Call it overbore, magnum-ness, or whatever.

Hi highly prefer to use the term magnum-ness, I think it's THE most appropriate here.

 

[nm.otter]

It's a useful metric, and I'd like to see it used more often.

 

[BLJ]

Ehh. Haven’t shot them side by side. My “feeling”- is yes. They have produced larger exits than 95gr TMK’s.

Fair.
Thanks.

 

[huntnful]

Nah. You shoulder shoot them, you effect the spine which drops them with anything. Beyond that, there are bullets in 6mm that create some of the largest wounds of any caliber and any bullet ever made to this point.

I’m pretty sure these have a visible impact. grin




From another thread-


Remember this is culling. Not hunting.

If you just hit ribs, it’s good- very effective.
If you hit bone, very likely you won’t like it.

2,100’ish FPS impacts. Photos and animals are unmodified.

Quartering too- shot entered center chest… How we walked up to it. A 9-10” wound.

Facing directly away. 2,105fps impact. Entered center of rear ham- 10+ inch hole. TC blew stomach out mid belly, bullet traveled all the way through the chest and through the heart. Everything inside body cavity was wrecked.

Heart-

116gr TMK, 2,105fps impact.

116gr TMK, 2,424fps impact.

View attachment 1019928


View attachment 1019929

View attachment 1019930

Yeah I’m definitely not saying something smaller can’t/wont affect the spine. Just that something bigger could POSSIBLY affect it more often (because not every shoulder shot affects the spine from what I’ve seen) when shooting in the shoulder. 300 RUM with a 220 TMK could potentially affect the nervous system with a shoulder shot more often than an .223 with a 77 TMK. I don’t think that’s a stretch of a statement.

I’ve seen, & have quite a few videos of the larger stuff affecting the spine/nervous system causing a DRT when placed pretty far away from the spine. Not so much the smaller stuff. And I’ve asked multiple times for .223 and 6mm kills videos to compare the actual impacts themselves, but don’t have much footage of it to share at this point.

And I agree those are great wounds. I’ve been following the thread as well. I’m sure most of those deer were DRT because of their small size vs. those wounds.

 

[huntnful]

Case capacity in cubic inches (minus the neck) divided by the bore diameter (in inches) squared. It's a dimensionless number which can also be derived from ml and mm.

Call it overbore, magnum-ness, or whatever.

Oh gotcha. Cool ration comparison. I always just went off if it used a magnum bolt face lol. But that’s a good ratio to judge “overboreness”

 

[Rockpicker]

Going to be a FAFO moment in the fall. 107s are inbound. Im thinking I can burn this barrel out by next year.

 

[TxxAgg]

I bought myself a little present. 1:8 T3x in .243

 

[Jbehredt]

I bought myself a little present. 1:8 T3x in .243


View attachment 1022817

20”?

 

[TxxAgg]

Yes 20” 5/8x24. $758


JRTXB31520MT

A lot of sites have it down as a T3 in 22” but it is definitely a T3x in 20”
Example:

https://grabagun.com/tikka-t3-lite-243rem-22-sts-blk.html

 

[UnckleBob]

Going to be a FAFO moment in the fall. 107s are inbound. Im thinking I can burn this barrel out by next year.

View attachment 1022797

Until I saw your post, I hadn't really considered the barrel life of my new 243 Tikka shooting heavies.

I compared the max book charges in the Hornady Manual for 108 grain bullets and 100 grain bullets. There really isn't much difference in the power charge - about 1 grain with some powders. For the powders I am likely to use (H4350 and Staball 6.5), there is almost no difference.

Theory: barrel life for 243 8 twist barrels shooting heavy bullets will be substantially the same as barrel life using traditional 243 loads.

Grok agrees with me. We both could be very wrong. It will be interesting to see your barrel life.

 

[UnckleBob]

I bought myself a little present. 1:8 T3x in .243


View attachment 1022817

I find it funny an Aggie has orange on his rifle. Hook'em Horns.

 

[TxxAgg]

I find it funny an Aggie has orange on his rifle. Hook'em Horns.

It only takes one time putting your rifle down and then not easily finding it again!

 

[danrobles1987]

It only takes one time putting your rifle down and then not easily finding it again!

As a Sooner I can relate here is a photo of my twin daughters setup. Orange is my daughter who on more than one occasion put down a wood stock and forgot. So got them new Tikka’s and brightened hers up.

Sent from my iPhone using Tapatalk

 

[khart_6882]

I bought myself a little present. 1:8 T3x in .243


View attachment 1022817

 

[bnsafe]

any idea when the 107 6mm tmk are coming out. im seeing a truckload of 6.5mm but zero 6mm.

 

[ckt3]

How dumb is it to order 500 rds of 100-200 yard practice ammo that I’ve never shot through this rifle before? Barnes 100 gr JHP and a Tikka 1/8 .243?

I could order several types of ammo and see how they group, but I’d honestly rather just get a bulk order and be done with it.

I guess I don’t know how bad it can be since I’ve never seen a rifle of mine “hate” some ammo.

 

[khart_6882]

How dumb is it to order 500 rds of 100-200 yard practice ammo that I’ve never shot through this rifle before? Barnes 100 gr JHP and a Tikka 1/8 .243?

I could order several types of ammo and see how they group, but I’d honestly rather just get a bulk order and be done with it.

I guess I don’t know how bad it can be since I’ve never seen a rifle of mine “hate” some ammo.

I just ordered 2 boxes of those Barnes just because they were cheap. When I get my 1/8 .243 back from the gunsmith I’ll see if it likes them for practice then order a couple hundred more