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subsonic 08-27-2007 08:15 AM

6.5x55 cast bullets
Has anyone on here tried cast bullets in a 6.5x55?

I'm thinking about picking up a mould and trying it myself and I'm looking for suggestions.

I have load data from the Lyman cast bullet book for their moulds, which should at least get me started.

I am thinking about the hard-to-get RCBS 6.5-140-SIL silhouette mould as my first choice, as I am not terribly fond of Lyman's mould design. Has anyone got a good picture of what the RCBS bullet looks like? Is it a bore-nose-rider?

I'm concerned about the fast twist my rifle has. It's a CZ 550 and has 1 in 8.5" twist or so, but it seems all 6.5x55 guns have a similar twist rate.

I've heard that it's hard to make cast bullets under .30 caliber work. Any truth to that?

gitano 08-27-2007 10:19 AM

Re: 6.5x55 cast bullets
I think the twist rate will not be an issue UNLESS you are striving for the fastest possible loads. There will be some velocity above which you cannot go without "stripping". What that velocity is, I do not know as I have only little experience with shooting cast bullets, and none with the 6.5x55. However, there are those here that do have considerable experienc shooting cast bullets - Drinksgin for one - and I'm sure there are more folks at Cast Boolits that would be more that willing offer opinion and advice.


subsonic 08-27-2007 10:49 AM

Re: 6.5x55 cast bullets
Thanks for the input. I just signed up over there, and will post it over there too at some point.

drinksgin (deceased) 08-27-2007 03:48 PM

Re: 6.5x55 cast bullets
SS, there are several 6.5x55 cast bullet shooters there, research the archives, there are a number of threads on it.
Al. formerly Deputy Al, now 9.3x62 Al, I believe has done quite a bit with that cartridge
There was at least one group buy mold in 6.5, may have been more.

Nelsdou 08-27-2007 07:50 PM

Re: 6.5x55 cast bullets
Ditto what Drinks said. There's a ton of good info of the frustration others have experienced trying to shoot cast in the Swede on CB.

I have a Swede sporter w/barrel twist of 9, six groove. I've had good luck with the Beartooth 135 grain sized at .265" over 19 grains of 5744. Just for grins, I had some spare H-Benchmark and got excellent groups w/22 grains.

Good luck,


subsonic 08-28-2007 07:51 AM

Re: 6.5x55 cast bullets
I had a couple of minutes to pop on over there and found some stuff. Didn't have time to read through everything, but did find some stuff on the "cruise missle" bullet.

I can imagine that my CZ might be a bit different than a 96 Mauser when it comes to finding a cast bullet that it likes. My chamber throat is shorter, but still very long.

I'll search more over there tonight, as I don't have access to that site from this PC.

Nelsdou 08-28-2007 11:30 PM

Re: 6.5x55 cast bullets
I have the "cruise missile" mould, and boy it produces some loooong bullets. Although it's designed for long-throated Swedes, I obtained it for application in a Carcano, which is even deeper throated and over-sized in bore diameter. Loads of 10 grains or so of Unique is fairly accurate. Any faster and it becomes a minute of barn in accuracy.

For a CZ I'd lean towards the shortest bullet I could find but still fill the throat reasonably well.

Beartooth 135g on the left, "Cruise Missile" on the right.


subsonic 08-29-2007 08:33 AM

Re: 6.5x55 cast bullets
Ever tried the RCBS 6.5-140-SILhouette mould?

gitano 08-29-2007 09:51 AM

Re: 6.5x55 cast bullets
Nels - What's the weight of the "cruise missle".


subsonic 08-29-2007 10:01 AM

Re: 6.5x55 cast bullets
The post I saw showed them at 173gr, I think out of wheelweights and before the gas check was added. They are big, ugly, and probably shoot great if your rifle has a huge, long throat, like an M96.

I think it was a 4 or 6 cavity "special order" Lee mould from Midsouth Shooters Supply, but I'm going from memory. I need to spend more time researching on that forum tonight, but doubt I'll have time until next week sometime.

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