I have a 10" Contender barrel that the chamber is too long. With 44 Mag brass I can't even come close to reaching the lands with the bullets crimped in the grooves. Accuracy is so so.
I have some 445SM brass. I trimmed one down to 1.365 and it is just flush with the end of the chamber. Thats .080 longer than the 44 Mag brass.
Now to the ?, Would it be worth the effort to trim some 445SM cases down to get better accuracy and maybe some more velocity. Or is the .080 jump to the lands not that big of a deal in a 44Mag. Thanks for the replies, Lone Hunter

Just a suggestion, and someone can correct me if I am wrong, but if I were you, I would just seat the bullet to where it is just off the lands and don't worry about crimping.

I have never crimped my 44mag in a contender and have had great results as far as consistent accuracy and velocities. Especially using hard cast bullets.

Plus by seating the bullets out some, it will allow you to shoot more and trim less.

Good Shooting,

HBL

Even though you can get a longer case into the chamber, you cannot readily tell for certain where the full diameter of the chamber ends and the forcing cone begins. These abortions do not have a throat like the older vintages did, only a .4" long forcing cone.

If you get the loaded neck diameter too large for the corresponding point of contact at the beginning of the cone, you can constrict the case mouth and jack pressures up badly. It can be done ok, but since the majority of shooters cannot determine headspace let alone the actual chamber depth, I strongly suggest you follow HBL's advice and simply seat bullets out.

If you are shooting a powder that perhaps needs some crimp, crimp into a lube groove if cast lead or consider a taper crimp die.

BTW, by seating bullets out, you can create almost as much capacity as is normal for .445 Super Mag.

Mike

Lone,

Why don't you do a chamber cast? That should tell you everything that you need to know.

Mike's right about the chamber length, but I've never heard of it as "forcing cone", except as applied to revolvers. "Throat" is more appropriate, IMO. Again, a chamber cast should tell you what you need to know.

Regards, Bill

Edited - Mike, I see what you are inferring now - you can't really call it a "throat", more like a forcing cone?...

[ 05-14-2003, 22:51: Message edited by: Bill M ]