Henry 243 long ranger load data needed

[jerbearyukon44]

Ok I have success with my first Hornady bullet .

I took my time and used the Hornady wax

These are my measurements before with a case out of the box.

Then sized, trimmed, seated.

39.5 grains of IMR 4350

Going to load 4 of each

39.5-40.5-41.5-42

Based on newer load data someone sent me from Nosler

Of course I will work up and see what works.

I will just do the 39.5 first to make sure it shoots before I go any further though

 

[jerbearyukon44]

PS ogive is 2.24” and jam is 2.2775”

 

[jerbearyukon44]

I can sure see the need for two calipers though

 

[jerbearyukon44]

So I have 5 - 39.5 and 4 - 40.5 grainers for my 100 grain Nosler partitions

One to warm the barrel up and to get me into shooting mode.

All chamber.

Thinking a bad batch of Starline now cause the measurements are just about identical ( big mystery).

Anyway thanks for all your help team and for your patience.

Hope this helps someone in the future too.

Time for some shut eye.

Bow season starts on Sunday morning

Here’s my baby

 

[jerbearyukon44]

So my results and I am going to load up 3-39.5 IMR 4350 and 3-h4350 just to see

 

[JD338]

Your rifle seems to like H4350. If reshoot 39.5 grs and try 40.0 grs. I would also try seating the bullets .010" deeper.

JD338

 

[jerbearyukon44]

I think either the IMR or the H 4350 could work

 

[Aussie Wanderer]

Seems like H4350 was made with the 243 and 260 in mind

 

[jerbearyukon44]

Seems like H4350 was made with the 243 and 260 in mind

IMR and H4350 for sure

Going to load IMR for now and I can play around later but I need a few round for gun season first.

Wanna take a deer and bear with it just to see how it performs.

I will go after deer and elk with the bow on Sunday morning….

 

[RL338]

So here’s the SAMMI Specs.

The bullet on the left chambers nice and the one on the right left it out as you can see ( without really trying to force it in which I won’t do.

More to come

Did you figure out what caused the scraping on this bullet?

 

[desertcj]

IMR 7828ssc is another good powder for 95-105gr bullets with the .243, it looks like you have something that will get you started though.

 

[jerbearyukon44]

View attachment 23470
Did you figure out what caused the scraping on this bullet?

No that scratching was from pulling the bullets on the ones that wouldn’t load.

I just wanted to reuse them.

I made up a bullet that would load and covered it in black felt pen… I ran it in and the darn thing loaded perfect.

So I did another one and am letting it dry.

Go figure.

I have it going fine now and I will post the findings but it’s pretty close to the ones that load so it’s still a mystery.

Even the new Hornady brass after o checked them all to make sure they would chamber, some didn’t want to go if the brass was shorter which makes absolutely no sense to me.

You would think longer brass might be the culprit

Thanks Jer