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View Full Version : Accurate Molds and Rossi M92 in 357



pastorcurtis
01-18-2012, 06:06 PM
There is a lot of good feedback on accuratemolds.com and I've been thinking about buying for quite some time. Has anyone developed a mold with Tom specifically for the Rossi M92 lever gun in 357? That's my favorite coyote and steel plate at 100 yard gun.

Thanks.

white eagle
01-18-2012, 06:46 PM
I bet if you e-mail Tom and ask about it he could either recommend something or design one
he's like that

pmer
01-18-2012, 07:23 PM
I worked with Tom on the 45-300G. I found that the nose length for heavier revolver boolits wouldn't cycle through my 45 Colt Rossi 92 and asked him for a 300 grain GC that would be "Rossi happy". The RCBS 255 SWC barley cycles in mine.

He emailed me to look at the newly created 45-300G in his catalog. I ordered it and in short time was making boolits. This boolit has a .360 crimp to nose, cycles great and I used it on the deer in my Avatar.

I think Ranch Dog is doing something for the Marlin 357 lever action. You might want to look at that too.

fecmech
01-18-2012, 10:53 PM
Before you go off the deep end with heavy bullets in the Rossi 92 .357 be aware of the 30" twist. I have run the Lyman 358429 173 swc accurately at max loadings (1600 fps+) but it will not shoot well in the mid range or slower. The Lee 125 is the most accurate in my 2 Rossi's in the 1100-1300 fps range (2-3MOA)at 100 yds. I had no luck at all with the NOE 180 gr WFN at any speed. Good luck what ever way you go.

knifemaker
01-18-2012, 11:00 PM
My last mold was from Accurate Molds for my .41 mag. and I love it. Before you order the mold, slug your Rossi barrel to determine the groove dia. and order a mold that will have sufficent cast dia. so you can size 1-2 thousands over that groove dia. On my mold I requested it to drop .413 dia. bullets using wheel weight alloy. It was right on the money and accuracy is great out of my Ruger flattop .41 mag.

pastorcurtis
01-18-2012, 11:12 PM
Yes, I've also had trouble getting bullets above 125 grains to really do well. The thing seems to like the plated bullets best - but we can't have that! It just calls for my trial and error....

The Ranch Dog 357 boolit is a thumper at 195 grains, not really meant for the Rossi's slow twist.

pmer
01-19-2012, 10:27 AM
Hey guys, is it the over all length of a boolit that affects stability or the bearing surface?

Or in other words would a 173 grain wad cutter be more stable in 30 twist barrel compared to a 173 grain semi wad cutter?

felix
01-19-2012, 10:59 AM
Yes, if the lengths were the same. But, in practice the lengths won't be the same. Also, the velocities must be the same to have a valid test. The nose shape really comes into play as the speed of sound is passed through. ... felix

pmer
01-19-2012, 12:13 PM
Yes, if the lengths were the same. But, in practice the lengths won't be the same. Also, the velocities must be the same to have a valid test. The nose shape really comes into play as the speed of sound is passed through. ... felix

I think my question was concerning two boolits of the same weight but one being shorter like I could see a wad cutter being more short than a SWC. Your right the speeds would have to be the same to be valid.

9.3X62AL
01-19-2012, 03:18 PM
See "Greenhill Formula" on Google for some guidelines to boolit length and twist rate relationships. The Greenhill "constant" of "150" sort of assumes a velocity of 1800 FPS, which is the ballpark the pistol caliber leverguns play in.

Specific to Accurate Molds--I ordered two of their tools 8 days ago. They arrived today. THAT IS CUSTOMER SERVICE.

runfiverun
01-20-2012, 02:03 AM
i use the lyman 452664 in my rossi 45 colts.
the lyman 429667 in my rossi 44 mags.
and the equivelant 358 lyman in my rossi 357 in 357 cases. [i had the equivelant rcbs but fat fingered it in my younger days]
they all feed and shoot as well as a levergun should,and have shot them from 1k up through 1650 fps.
the only non lymans i use in a levergun is the magma 200 gr in my 44-40,and a rapine 72 gr in my 25-20's as the lyman was a bit too heavy.
they all seem to be just a bit over saami length in thier respective cases, but are just right for the rossi 92's.