Hard bolt pull?

[BountyHunter]

If there were a big mismatch twixt die & chamber, the cartridge would not go in.

Small base dies are a fraud unless you have a defective chamber. My 6 ARs, NM M-1 and R-1 all use regular dies just fine.

His brass is too soft or his loads too hot.

Does anyone besides me wonder how this terrible problem (clickers) first appears, after 150 years of reloading for 10s of 1000s of cartridge guns by millions of shooters is first discovered on a forum peopled by .0001% of reloaders ?

Too many, locked down for too long !

Total BS. The dies are too big for his chamber at the 200 line but can still be within saami specs. There is a 10 thousandth min max at the .200 line. They are not sizing down the back of the brass enough. Small base dies will cure this. Has absolutely nothing to do with soft brass and FYI that issue has been around as long as reloading. Read up on clicks before giving out crazy info like this if you do not know any better.

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[jarnold37]

It might be helpful to check diameter of once fired brass at the web or .2 and compare to new brass. I had a belted case once that swelled 5 thousands at back of chamber area after firing. Fought it and even cracked the FL die after a few sizeings. Belt even swells with a fat chamber. Lathe was not trued causing oversized chamber mouth.

 

[YZ-80]

Are you neck sizing or full length?

Full length

 

[tnek13]

I would try a different brand of brass - Lapua or Starline, then I would measure everything and if I still had a problem I would call the manufacturer ( Danial Defence) they may have the answer. Or maybe clean or polish the chamber ( properly sized bore mop with Fritz). RCBS makes good dies, however, trying a different brand may give you a slightly different dimension, but you don't mention a feeding problem. Does the clicking continue if you shoot an extended string of 5,6,7,8 shots? Does the clicking affect accuracy? Best of luck I hope you figure it out.

 

[YZ-80]

OK so the fired brass that had produced the difficult bolt pull had a diameter at the .2 line of .473. Regardless of how I had the die set upon resizing (cam-over or no cam-over) I had a diameter at the .2 line of .471. New unfired brass is .469 at the .2 line.

 

[Paper boy]

This is most prevalent with guys who neck size only. I know- i'm guilty! After a few firings on a 300 RUM, sticking cases. After a few firings, the brass becomes fully expanded to fit the chamber, with no spring back left. I didn't matter what the load was. I picked up a body die and ran all the previously loaded rounds though it. What do you know? No more sticking cases!

My point exactly!

 

[doubledoc]

With TWO TERMINAL DEGREES, and a well exercised reading ability, at least now I know what the "CLICK" controversy was really all about!!! LOL Thanks, Guys!

 

[epoletna]

Are you sure it isn't "cluck"?

 

[YZ-80]

Don't you think it just a bit odd that the OP tosses out the frog on the lily pad and waits for all the Largemouths to respond ?

Far too many have been locked down far too long.

I don't think too many others here would subscribe to this line of thinking. I have no ulterior motives for my posts, just trying to gain some knowledge, that's all. Being locked down hasn't bothered me a bit. It would appear that it may have gotten to you, however.

 

[okie man]

Guys,

I got my Delta 5 shooting pretty good with the 6.5 CRDM barrel. Today at the range, however I had a bit of an issue on occasion pulling the bolt back. No heavy lift. It would happen about every 3rd or 4th round. I'm running 4th cycle gunwerks brass and I'm bumping .002 to 1.504" on the Sinclair comparator. No signs of pressure on the brass, no cratered primers, etc. Headspace is good. This is a 37.2 grain charge under a 143 ELD-X and I'm .003 off the lands. I'm wondering what gives? I have a theory that maybe the neck turning striations have created more friction in the throat upon expansion but I didn't have any loads that were un-turned to test this theory. Maybe that or dirty bolt raceways or mortises? Any ideas? It didn't seem to do this as a .308. Thanks in advance for any insight.
[/QUOTE]so first off, 4 firings on brass. Did you anneal, trim and chamfer cases after any of the firings? Second, you are running only .003 off the lands. How you determine This number? I myself haven't found a Hornady bullet you could consistently seat to that close without adjusting my seating die every bullet. You said you're using 37.2 grains of powder. Which powder? You said you're getting no signs of pressure, sticky cases are a sign of over pressure. Being it's not a consistent sign I would believe there's something in your loading process that's not consistent or you would or would not be seeing inconsistent signs of problems.
here's my advice! First off is this a new barrel on your gun? If so why are you shooting 4 time fired brass in it? Get new brass and start fresh. Second is make sure your powder , bullets, primers and your data match. Check your brass for proper trim length after sizing. Check all brass for proper function before moving to each step in loading process except powder charging of coarse! Next thing I'd do is seat the bullets at minimum.010 off lands.
I typically am not a gambling man but I'd bet money your issues are a result of your reloading practices and not a equipment/materials issue. Most likely it could be as simple as getting new or annealing and trimming your brass. Seating your bullets a little deeper. Maybe even cleaning your barrel!

 

[BrentM]

Are you running this rifle suppressed? I had an issue with a short barrel and suppressed shooting, fouling the chamber faster than normal. I have to clean the chamber more frequently. I think most everything else has been more than covered, multiple times, so I'll leave the rest alone and just curious if you shoot suppressed or not.

 

[YZ-80]

Guys,

I got my Delta 5 shooting pretty good with the 6.5 CRDM barrel. Today at the range, however I had a bit of an issue on occasion pulling the bolt back. No heavy lift. It would happen about every 3rd or 4th round. I'm running 4th cycle gunwerks brass and I'm bumping .002 to 1.504" on the Sinclair comparator. No signs of pressure on the brass, no cratered primers, etc. Headspace is good. This is a 37.2 grain charge under a 143 ELD-X and I'm .003 off the lands. I'm wondering what gives? I have a theory that maybe the neck turning striations have created more friction in the throat upon expansion but I didn't have any loads that were un-turned to test this theory. Maybe that or dirty bolt raceways or mortises? Any ideas? It didn't seem to do this as a .308. Thanks in advance for any insight.

so first off, 4 firings on brass. Did you anneal, trim and chamfer cases after any of the firings? Second, you are running only .003 off the lands. How you determine This number? I myself haven't found a Hornady bullet you could consistently seat to that close without adjusting my seating die every bullet. You said you're using 37.2 grains of powder. Which powder? You said you're getting no signs of pressure, sticky cases are a sign of over pressure. Being it's not a consistent sign I would believe there's something in your loading process that's not consistent or you would or would not be seeing inconsistent signs of problems.
here's my advice! First off is this a new barrel on your gun? If so why are you shooting 4 time fired brass in it? Get new brass and start fresh. Second is make sure your powder , bullets, primers and your data match. Check your brass for proper trim length after sizing. Check all brass for proper function before moving to each step in loading process except powder charging of coarse! Next thing I'd do is seat the bullets at minimum.010 off lands.
I typically am not a gambling man but I'd bet money your issues are a result of your reloading practices and not a equipment/materials issue. Most likely it could be as simple as getting new or annealing and trimming your brass. Seating your bullets a little deeper. Maybe even cleaning your barrel!
[/QUOTE]
Hi. Thanks for your post. I do not anneal but the brass is full length resized, trimmed to length, tumbled chamfered and deburred each reload cycle. Also checked for concentricity. I'm watching my bump, and check each case to make sure it chambers properly. I am .030" off the lands Not .003" like I posted originally so my apologies. I am limited by the mag length getting any closer. The powder is RL-15

 

[YZ-80]

Are you running this rifle suppressed? I had an issue with a short barrel and suppressed shooting, fouling the chamber faster than normal. I have to clean the chamber more frequently. I think most everything else has been more than covered, multiple times, so I'll leave the rest alone and just curious if you shoot suppressed or not.

Nope. Don't got my darned can yet but hoping to have it in August!

 

[BrentM]

Nope. Don't got my darned can yet but hoping to have it in August!

Do you have a chamber cleaning process that actually cleans the faces of the actions lugs? I have boretech action cleaning tool that does a great job of cleaning off those lug surfaces.

Anyway, I've not loaded RL 15 so I can't give advice on the grains being used. What is your barrel length and speed?

In my mind, since it's not consistent, I'd be looking at those cases closely to see what the difference is. Since the bolt lift to cam is operating normally but you have hard extraction it makes me wondering about the case but also about the condition of the primary extra ramp and timing. I recently had an action with too much face removed during truing and it created a timing issue. Don't think that's your issue but it was something I hadn't had happen before. It took me a bit figure out that the primary extraction was not working correctly.