Roll crimp newbie

Discussions covering the components and techniques of reloading for your handgun.
Post Reply
Shooterrick2020
Supporter
Supporter
Posts: 137
Joined: 09 Apr 2020 04:55
My Press Choice: Progressive
Location: Louisiana
Been thanked: 35 times

Roll crimp newbie

Post by Shooterrick2020 »

I have loaded thousands of rounds for my pistols and understand and know what to look for I have never loaded for revolvers and absolutely new to whata roll crimp should be except of course not so crimped that it deforms the Bullet. I've included a couple photos I would appreciate any input.
You do not have the required permissions to view the files attached to this post.
If you always do what you always did you will always get what you always got.
mikld
Founding Member & Supporter
Founding Member & Supporter
Posts: 674
Joined: 30 Jun 2013 09:30
My Press Choice: Turret
Location: S. Oregun
Has thanked: 203 times
Been thanked: 371 times

Re: Roll crimp newbie

Post by mikld »

From what I can see, the bullet should be seated a but deeper. I like to have the case mouth at least midway in the cannalure, but prefer the case mouth be a few thousandths below the upper edge of the cannalure. The crimp itself looks OK but I don't think I'd go any heavier. Pull the bullet and check for any deformation from the crimp...
Shooterrick2020
Supporter
Supporter
Posts: 137
Joined: 09 Apr 2020 04:55
My Press Choice: Progressive
Location: Louisiana
Been thanked: 35 times

Re: Roll crimp newbie

Post by Shooterrick2020 »

mikld wrote:From what I can see, the bullet should be seated a but deeper. I like to have the case mouth at least midway in the cannalure, but prefer the case mouth be a few thousandths below the upper edge of the cannalure. The crimp itself looks OK but I don't think I'd go any heavier. Pull the bullet and check for any deformation from the crimp...
COL . Measures 1.56
If you always do what you always did you will always get what you always got.
cj8281
250 Shots
250 Shots
Posts: 255
Joined: 03 Jan 2017 10:58
My Press Choice: Turret
Location: Utah
Has thanked: 56 times
Been thanked: 85 times

Re: Roll crimp newbie

Post by cj8281 »

Generally if the bullet has a cannelure, you crimp in that. I am not saying to completely disregard the COL but it isn't as important as loading something like the 9mm were the COL is CRITICAL. Some people like to crimp in the top of the cannelure with none showing, others right in the middle, don't know of any that like to crimp in the bottom but it probably has been done.
Your crimp looks pretty heavy but not bad.
User avatar
GasGuzzler
Moderator & Supporter
Moderator & Supporter
Posts: 2039
Joined: 26 Jan 2016 22:39
My Press Choice: Turret
Location: Cooke County, TX
Has thanked: 330 times
Been thanked: 500 times

Re: Roll crimp newbie

Post by GasGuzzler »

Nope.

I could not care less where the arbitrary dotted line is. Load it to the proper depth for the bullet WEIGHT and charge. Make sure it's the proper OAL to work in the intended firearm.

One thing that helps with .357 (or other straight walls) is cast bullets where you care about the waistline (waste line?) even less.

I still have no idea why anyone would load jacketed in .357...or several other cartridges.
__________________________________________________________________________________________
I've always been crazy but it's kept me from goin' insane.
Ohio3Wheels
Supporter
Supporter
Posts: 888
Joined: 06 Mar 2016 16:09
My Press Choice: Hand Press
Location: SW Ohio
Has thanked: 156 times
Been thanked: 240 times

Re: Roll crimp newbie

Post by Ohio3Wheels »

GasGuzzler wrote:Nope.

I could not care less where the arbitrary dotted line is. Load it to the proper depth for the bullet WEIGHT and charge. Make sure it's the proper OAL to work in the intended firearm.

One thing that helps with .357 (or other straight walls) is cast bullets where you care about the waistline (waste line?) even less.

I still have no idea why anyone would load jacketed in .357...or several other cartridges.
I couldn't drive cast fast enough with any kind of accuracy to knock over 200 yard rams.

Stay well, be safe, make smoke,
Curt.......makin' smoke and raising my carbon foot print one cartridge at a time +guns +guns
User avatar
GasGuzzler
Moderator & Supporter
Moderator & Supporter
Posts: 2039
Joined: 26 Jan 2016 22:39
My Press Choice: Turret
Location: Cooke County, TX
Has thanked: 330 times
Been thanked: 500 times

Re: Roll crimp newbie

Post by GasGuzzler »

Touche'

I'm not using a .357 to shoot ANYTHING at 200 yards.
__________________________________________________________________________________________
I've always been crazy but it's kept me from goin' insane.
User avatar
Macd
Supporter
Supporter
Posts: 1009
Joined: 16 Oct 2017 16:12
My Press Choice: Single Stage
Location: Far East
Has thanked: 362 times
Been thanked: 403 times

Re: Roll crimp newbie

Post by Macd »

I use cast, plated and one type jacketed in 38 spl and 357 mag. I don't have a rifle in either calibre. Here is the jacketed bullet. I role crimp into the middle of the cannelure. I also use all three bullet types in 45 colt..

It is easy to deform a bullet with a role crimp. I seat and crimp seperately and use a factory crimp die as case length is not critical. If you have proper neck tension a light crimp should prevent bullet creep in revolvers. I do medium crimp for heavier loads but then tend to use the plated or jacketed bulllete.
021-4207 Speer.jpg
You do not have the required permissions to view the files attached to this post.
horseman
Supporter
Supporter
Posts: 999
Joined: 09 Nov 2015 06:35
My Press Choice: Single Stage
Location: Washington State
Has thanked: 37 times
Been thanked: 274 times

Re: Roll crimp newbie

Post by horseman »

I crimp in the top of the cannelure and as long as it fits in the chamber for length I'm good. I use probably what most would call a heavy crimp. I've had bullets jump crimp and tie up the gun albeit not with "pedestrian" loads, but I still crimp all loads the same. If I run my fingernail down the ogive of the bullet to below the case neck I don't want to "feel" the case neck as I pass over it and that's plenty of crimp. I've done this either crimping separately or with just the seating die, no difference for me.


EDIT:
I probably should have added that all I load in my revolvers are cast bullets. That heavy of crimp possibly could make a difference vs using a plated bullet but not a jacketed bullet designed for the caliber.
Last edited by horseman on 22 Jun 2020 10:20, edited 2 times in total.
User avatar
RBHarter
Founding Member
Founding Member
Posts: 2042
Joined: 13 Mar 2014 19:45
My Press Choice: Single Stage
Location: The green hell 90 miles north of Texarka
Has thanked: 76 times
Been thanked: 670 times

Re: Roll crimp newbie

Post by RBHarter »

If you work up a load at a particular OAL it doesn't matter what it is . Unless you're one of those gotta have top speeds or it's worthless guys , I'm more of a 1 where it needs to be over 5 close . I'm a lousy bench shooter so I need all the help I can get .
Just a Red neck,White boy, Blue blood American.....
Post Reply

Return to “Handgun Reloading”