4n2t0

Mine look exactly the same with a 147gr bullet which I load with 3.6gr of Titegroup. Keep them coming...

Why? Are you suggesting the load is hot? Or is it just playful fear-mongering? lol.

Your variation in oal is insignificant, if the round passes the plunk and spin test then I wouldn't worry about it.

Get a reamer if it bothers you.

How did you determine the OAL? Did you plunk and spin test the load?

I just sewed an old bed sheet into a large sack. Easy, cheap and effective.

Dillon dies w/ a DAA powder funnel.

Better to ask now than to be sorry later. You don't really have to worry about harmful pressure levels when changing the OAL as long as you start with published/known data (Not for the OAL information, that's useless, rather the charge weight spread). Rowdyb has provided you with an excellent data point. I can add that it took me 3.6gr of TG under a 147gr thick plated bullet to make 130 PF in a 4.25" barrel.

Starting charge shouldn't really change because of the OAL. It would have to be something ridiculous for me to consider it a factor when determining a starting charge weight. I'm surprised the 124gr needs to be that short but I don't load Xtreme.

What bullet brand? What powders and charges?

Does your sizing die kiss the shellplate? It should. Raise the ram and lower the sizing die until it touches the shellplate.

Denial ain't just a river in Egypt...

Are you sure you went as short as 1.00? Or did you mean 1.10? To be fair your measurements have been all over the place. If you really got down to 1.00 then there's something else going on probably related to sizing/brass. I keep going back to OAL because you say the completed rounds plunk but do not spin which almost always indicates that the round is too long. What do you mean by "I get a resistance in a portion of the rotation"? Can you post a video of you performing the plunk test on a few rounds? What about some pictures of your completed rounds?

@Bench You sound very confused... 1) 1.13 is your OAL, keep shortening the round until it plunks and spins freely. Some of my guns require OAL's as short as 1.08. 2) .376 is your crimp diameter at the case mouth, try .378. 3) .356 is your bullet diameter. Try reducing the crimp first to see if that in itself corrects the problem but if it doesn't start shortening the OAL until the round plunks and spins freely.

Federal primers are top notch and detonation (although very rare) can happen with any brand of primer. Worse case scenario, you have a new chandelier:

Don't forget N310.

The OAL listed in manuals/data is completely useless, it's only there to tell you what OAL they used when the round was tested.

The OP experienced it, lol.

This.

It does say a lot, I think it says that I shouldn't wet tumble completed rounds with SS pins or the coating might come off, lol.

Use lead data and make sure you flare the case mouth enough so it doesn't scrape the coating when seating.

The case is getting stuck in the station one locator. https://forums.brianenos.com/topic/244675-xl650-cases-getting-stuck-tipped-in-station-1-locator/

You shouldn't have any problem finding tons of data, just use Red Dot data by weight.

The easy fix for primer suck-back would be to change the shape of the pins tip with sandpaper.

It all depends on the bullets ogive. Even two bullets with the same general construction can/will have different ogives. Assume all the bullets below are 147's, see how the ogive changes slightly. That small difference might make the bullet hit the rifling sooner.