Newbie reloader question

[Amudgett]

Is crimping even necessary with such a long bullet?

 

[milboltnut]

shoot it and find out

 

[Amudgett]

shoot it and find out

I get it. But I didn't know if there was a rule of thumb with crimping?

 

[milboltnut]

It's trial and error bro.

 

[asd9055]

Do not seat deeper without adjusting the powder! Check the Barnes load data!

 

[asd9055]

@Amudgett
From experience, do not load TSX in the same COAL as TTSX with same powder load, bullet seats deeper leading to higher pressure!

 

[Amudgett]

@Amudgett
From experience, do not load TSX in the same COAL as TTSX with same powder load, bullet seats deeper leading to higher pressure!

I'm only working with ttsx but thanks for the heads up

 

[J-B welder]

Is crimping even necessary with such a long bullet?

I use the TTSX in my .243 without crimping and they shoot very well. Assuming you are using them for hunting (I've never heard of any one using them for competition), I think you'll be OK with no crimp if you have proper neck tension.

 

[asd9055]

Just curious, what powder are you using for those? I was using imr7828

 

[Amudgett]

Imr 7828. I have some retumbo I wanted to try in some larger loads as well.

 

[skipglo]

What's to close to the lands in "inches? I know I don't want a jam in the field while hunting. I suppose I could just sacrifice a bullet without primer and powder and play around with it in my gun.

It's in thousandth s not inches! About .0020 is a good starting point but is different for most bullet styles. You will only find this necessary to not hit the lands...or more necessary when you use the longer heavier bullets. Look at the COAL in your books...and watch YOU TUBE!

 

[skipglo]

From Barnes Bullets:

"An exclusive feature of the TSX Bullet is multiple, precisely engineered rings cut into the bullet shank. These grooved rings act as relief valves as bullet metal flows under pressure while traveling down the bore. Instead of flowing from the front to the base of the bullet, the copper material expands into the grooves. This results in reduced pressures and less copper fouling. Reduced pressures mean the bullet can be safely loaded to higher velocities. The rings also alter barrel harmonics, greatly improving accuracy."

Seat them where they shoot best!

Well done!

 

[asd9055]

300 WBY is not designed for closed to the lands, and I doubt you could get there

 

[Reelamin]

Won't crimping be an issue if the tip of the brass isn't contacting bullet?

I don't crimp and yes it would need something for best grip. A slight crimp will keep it in just loose OAL