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I will have to size a couple this evening and let everyone knowA 4x fired case is .375 at the base, what is the resized number in that same location ?
Btw- .008 expansion at the shoulder is ALOT
I will have to size a couple this evening and let everyone knowA 4x fired case is .375 at the base, what is the resized number in that same location ?
Btw- .008 expansion at the shoulder is ALOT
It’s actually between .006 and .007. The taper in the case and the wide jaws in the caliper got me. Right on the body shoulder junction I’m at .356 .357A 4x fired case is .375 at the base, what is the resized number in that same location ?
Btw- .008 expansion at the shoulder is ALOT
Yes ! Looks like the shoulder area for that reamer is .357. So if my die is taking it a good bit smaller than that I could see where that can be trouble. Unless others running a wylde chamber is getting around the same firings as I am I’d say that’s normalA Wylde chamber most likely will run a bit bigger in the back end than your original Savage chamber. See post 8.
223 Wylde Chamber Question
I am having my prairie dog rifle rebarrelled. It is a Rem 700 223. I shoot mainly 55 gr vmax bullets. I have purchased a Krieger 8T barrel in light varmint taper. One gunsmith suggested a 223 Wylde chamber, I understand it has some larger dimensions than a SAMMI 223 chamber. Will I run into...forum.accurateshooter.com
Yes, while this is NOT ideal and is overworking the brass. There are multiple other posts within the thread where others are seeing the same exact failure point across a wide range of chambers. This alone would make me suspect to the metallurgical properties and not one specific reloading die fitment.Still quite a bit and if your sizing that much at the base/.200 line you’ve perhaps found your cause for case separation.
Not sure from your post what bullet you’re using with 23.2 gr of AR Comp. You mention shooting a 69 gr bullet but it's not clear what powder and charge. You state that it's a warm powder charge. Per the Alliant website with AR Comp the max charge with a 52 gr bullet is 25.3 gr, a 69 gr bullet 23.2 gr. You state your shooting a warm load with 23.2 Gr of powder Anyhow you were severely damaging cases and you continued shooting that load many times. Why didn’t you stop shooting. With one separated case you should have stopped shooting that load. You never tried shooting a lighter load so you damaged a large number of cases and possibly endangered your safety. You never tried backing off the charge you assumed you could solve the problem by measuring a lot of case dimensions.View attachment 1423069View attachment 1423070
I had a case separate today which was a first. It’s starline brass bumped back 2-3 thou depending on what day it is, and this was the 4th firing. Many out of the 100 I started with shows a faint line outside on the body where it snapped. Anyways I anneal after every firing. 223 cases. I have seen ( not through personal experiences) the case head separate from over sizing and I have had split necks and I have had primers get blown out but not so much this. Helps. +++EDIT+++ I’ll also add I can not feel anything inside the cases where the line is forming with a paper clip. 94 out of the 100 has the obvious line around the outside of the case. 6 doesn’tView attachment 1423205
I didn’t have any signs of problems getting ready to occur. I honestly didn’t. No blown primers, No hard bolt lift, no click at the top of ramp, honestly only a few flattened primers. That’s with over 400 rounds. I did ask on here during my load development with very good pictures of all my cases in my box primers up if anybody seen any evidence of pressure. I didn’t nobody else did either. I’m not blaming it on guys on here but I feel like I know a good bit but I don’t have near the knowledge of a lot of people on the forum. It was a max load ran most of the time but not on all the cases all 4 firings. Alliant states 23.2 with a 24” barrel was 2969 fps. Mine is a 26” and was running 3030fps. I even went well over the 23.2gr as a starting charge when I first started. Zero visible signs of pressure even at that. I ran up and down with varget, arcomp. As well as 40gr, 50, 52, 53, 69, and 75 bullets. The only sign I had was the faint line halfway up the case and I didn’t think a thing about it until one separated. It was my first ever case separation in at least 25 years worth of shooting and loading off and on. Considering still what I have seen up to this point I doubt anyone else would have seen a sign of trouble. As a matter in fact once a case separated I did quit. I didn’t have one separate 200 rounds in and keep shooting.Not sure from your post what bullet you’re using with 23.2 gr of AR Comp. You mention shooting a 69 gr bullet but it's not clear what powder and charge. You state that it's a warm powder charge. Per the Alliant website with AR Comp the max charge with a 52 gr bullet is 25.3 gr, a 69 gr bullet 23.2 gr. You state your shooting a warm load with 23.2 Gr of powder Anyhow you were severely damaging cases and you continued shooting that load many times. Why didn’t you stop shooting. With one separated case you should have stopped shooting that load. You never tried shooting a lighter load so you damaged a large number of cases and possibly endangered your safety. You never tried backing off the charge you assumed you could solve the problem by measuring a lot of case dimensions.
My fired brass from a Shilen .223 Wylde chamber measure 1.460 with the hornady toolIt’s weird weird. I thought I was missing something obvious. What does some of you guys fired cases measure that has the hornady tool ?
My fired cases and yours is nearly identical. I can’t seem to figure out why a couple has posted their lengths with the hornady tool and is .010 longer than mine. Only thing I can figure is the inserts are longer than mine. We’re going to get it narrowed down to what the issue is. I’m really leaning towards a max load on brass that’s not quite up to snuff. It seems to be the only thing that halfway makes senseThe shoulder/body diameter is a reference measurement for SAAMI and is taken at a specified spot(distance) from the base(head). Taking a measurement at the shoulder/body(not the SAAMI reference) of unprocessed(cleaned) range brass from multiple AR .356-.358. My sized range brass .353. I have 223R,223 Wylde,556 chambered rifles. I size all the brass the same, no case head separation, multiple firings.
Good video on case separation at the head by a top shooter. Don't know how it relates too mid body separation but it is probably similar cause.View attachment 1423069View attachment 1423070
I had a case separate today which was a first. It’s starline brass bumped back 2-3 thou depending on what day it is, and this was the 4th firing. Many out of the 100 I started with shows a faint line outside on the body where it snapped. Anyways I anneal after every firing. 223 cases. I have seen ( not through personal experiences) the case head separate from over sizing and I have had split necks and I have had primers get blown out but not so much this. Helps. +++EDIT+++ I’ll also add I can not feel anything inside the cases where the line is forming with a paper clip. 94 out of the 100 has the obvious line around the outside of the case. 6 doesn’tView attachment 1423205
I have a Colt field gauge. It measures 1.467 in my Hornady comparator.Is a field gauge bigger than a no go ? I don’t know everything but good money says no way in the world it will chamber in my rifle. A no go gauge certainly will not. Using a 5/16 bushing slipped over the neck sitting on the shoulder measuring 3 random of each.
Fired cases: 2.348
2.350
2.348
New cases: 2.343
2.344
2.344