Curious About Bullet profile

[Hondo 60]

I heard of a .452" full wad cutter.
I got curious about them; Enough so that I ordered some from Matt's bullets.

Now the hard part ... where to seat them and data to do so.
There is a crimp groove but do I want the entire bullet in the case?

Any help out there with data?

Thank you in advance.

http://www.mattsbullets.com/index.php?main_page=product_info&cPath=68_82&products_id=317

 

[.308 Norma]

That particular wadcutter looks like it was designed to be seated so that you can crimp into the crimping groove. There's another hollow-based wadcutter (.312" diameter) pictured on that page, lower down and to the right, that doesn't have a crimping groove. Wadcutters like that second one are designed to be, as you say - seated entirely in the case, with a slight roll crimp just over the top of the bullet.
That's an interesting 45 caliber bullet you're using. I'd like to know how it works for you. What are you using it in - a 45 Colt revolver of some kind?

 

[cheygriz]

Use starting loads for 250 SWC, and work up if desired.

I would try both crimping (LIGHTLY) in the groove and also seating the bullet completely inside the case with no crimp. See which is most accurate.

These are bullseye target bullets and should be "same hole" accurate once you find the right formula.

 

[Hondo 60]

Haven't used it yet.
But they'll be used in two 45 Colt SAAs

 

[LoonWulf]

I'm not a pistol guy, but that bullet doesn't look like it's ment to be seated all the way into the case.
To me It looks more like it is designed to transfer a large amount of shock rather than be a target bullet.

 

[Walkalong]

Crimp them in the crimp groove, or lightly over the front edge of the full diameter part of the bullet.

Yes, you want the lesser diameter "nose" out of the case.

 

[reddog81]

Crimp into the crimp groove. That wadcutter will have a lot of bullet out of the case. 250 SWC load data will probably work, but the pressure and velocity will probably be lower because less of the bullet is in the case.

I have a NOE 454 264 grains wadcutter and it has as much of the bullet in the case as a 280 to 290 grain SWC so I use data for those heavier bullets. When doing stuff like this it's always helpful to determine how much of the bullet is inside the case and find comparable bullets with load data. Using this method I never go up to the max end of the load data (unless the rounds are for shooting in a .460 XVR).

 

[.308 Norma]

These are bullseye target bullets and should be "same hole" accurate once you find the right formula.

Yeppers, with the right shooter and the right gun at the right distance, these "bullseye target bullets" will possibly be "same hole accurate" for 2 out of 6 rounds. 6 out of 6 if you're close enough to the target.

 

[Hondo 60]

When doing stuff like this it's always helpful to determine how much of the bullet is inside the case and find comparable bullets with load data.

Excellent point. That gives me some things to reseach & think about.

TY

 

[Slamfire]

Crimp them in the crimp groove. Use 8.5 to 9.0 grains Unique, any case, any primer, and all will be well.