Mr. Dulles.

(The photograph referred to was marked Commission Exhibit No. 607 and was received in evidence.)
(At this point Representative Ford entered the hearing room.)

Mr. Dulles.

All right.

Mr. Eisenberg.

Mr. Cunningham, we have introduced a photograph, which is Commission Exhibit No. 607, which shows four bullets labeled "C-252, R-P," "C-253," and "Western."
Are two of those bullets the bullets which you just identified as Exhibit 606?

Mr. Cunningham.

No; Commission Exhibit 606, the copper-coated Western bullet, is the same bullet that was in this photograph, labeled the Western bullet.

Mr. Eisenberg.

Could you hold that up?

Mr. Cunningham.

Yes, sir; that is the bullet.

Mr. Eisenberg.

The copper-coated or copper-colored bullet in 606 corresponds with the far right- hand side bullet labeled "Western" in 607?

Mr. Cunningham.

That is right.

Mr. Eisenberg.

What about the lead-colored bullet in 606?

Mr. Cunningham.

That is a Remington-Peters 158-grain lead bullet. I do not have that one with me.

Mr. Eisenberg.

This would be similar in appearance though to the bullet which was photographed as the "R-P" bullet?

Mr. Cunningham.

No, it isn't.

Mr. Eisenberg.

Why is that?

Mr. Cunningham.

Because this is a Winchester.

Mr. Eisenberg.

Why isn't it copper coated?

Mr. Cunningham.

The Western Cartridge Division of Olin Mathieson Corp. loads both lead and copper-coated bullets into their .38 Specials.
As of today, Winchester is only loading--under that brand--uncoated bullets. That is what their latest catalog says.
Only Western is loading copper-coated bullets. They are both made in the same factory--they are both made by the Western Cartridge Division of Olin Mathieson Chemical Corp. in East Alton, Ill

Mr. Eisenberg.

So you didn't give us an R-P test bullet?

Mr. Cunningham.

I did not.

Mr. Eisenberg.

I see. Did you use an R-P test bullet in attempting to make your identification?

Mr. Cunningham.

Yes; you asked for our first two tests.

Mr. Eisenberg.

I see. Okay. Can you show by use of that photograph, Exhibit 607, how you were able to determine that certain of the bullets found in Officer Tippit were of R-P manufacture, .38 Special, and certain were Winchester-Western?

Mr. Cunningham.

Yes.
First of all, in the manufacture of these bullets, each manufacturer has his own specifications for how they are to look. By that I mean generally that both manufacturer's bullets are similar. They are similar in weight. They are generally similar in size and diameter as well as length. However, the number and the spacing between the grooves--these grooves, the cannelures, are not similar. It is actually a knurling process, you can see the knurling marks.

Mr. Dulles.

What is the purpose of those?

Mr. Cunningham.

Lubrication grooves. .38 Specials being lead bullets--in order to keep down excessive leading they put in a lubricant--Remington- Peters--they use a very dark heavy lubricant. Western- Winchester, they use a very light-colored waxy type of lubricant.

Mr. Dulles.

Thank you.

Mr. Cunningham.

Up above you will see a small groove. It is nothing more

than just a slight groove. That can be caused when the case is crimped, the bullet is crimped into the case.

Representative Ford.

That is in the R-P?

Mr. Cunningham.

On both of them, sir.

Representative Ford.

That is on both?

Mr. CUNNINGHAM Yes; you see one here, that has actually been put in. They