REDDING BIG BOSS II, primer seating depth

[hakerman]

Hi guys, i have a big boss II with their "lever" thingy for seating primers, i have watched a youtube video

it is all well explained but, i cant find the hole in which i can put a drill bit, and set screw from above has something yellow coated, maybe as some insurance for not unscrewing while operating...

any help is appreciated, as i cant set the seating depth, i am getting a constant 0,03mm of primer out of case...
all cases are measured with hornady anvil and headspace gauge... and every case has 0,03mm of length... also i can actually feel when measuring that primer is a little out... it rotates differently...

0.03 millimeters is equal to about 1.18 thousandths of a inch.

so how can i push those primer more inside the case?

the measurement is always the same, even with a lot of force on the press, and with normal use of force...

any manual from reding on this?

i don't have any manual in the original case of the press.

 

[RustyInBend]

I primed using my Big Boss II a single time, then I bought the primer tool from Frankford Arsenal. I couldn't imagine going back to using a press and doing it all one at a time. There are several really good tools, literally "all of them" better than priming with a single-stage press like the BB2 (IMHO).

 

[22vartarg]

The hole you are looking for may be hidden up underneath the cup. Make sure it is fully raised and the spring can be moved and you should see it. It may be easier to take the priming cup part off the press to locate it..

 

[hakerman]

The hole you are looking for may be hidden up underneath the cup. Make sure it is fully raised and the spring can be moved and you should see it. It may be easier to take the priming cup part show off the press to locate it..

well i have seen this on the youtube clip also, but there is no hole in my priming tool, i am work now so i will post photos later.

 

[hakerman]

is it possible that big boss II is different???

take a look at this...
dont look at the broken allen key head ....
on the left is large primer seater (with yellow stuff)...

but i dont have any holes in it??

i have broken two allen keys trying to unscrew it....

 

[hakerman]

rest of pics

 

[JMAN80]

The 2 has set Screws and is different than Highboys video in which his is an Original Big Boss. Adjust screw out to seat deeper if I’m not mistaken.

 

[DumpHollow]

A separate primer seating tool does a better job.

 

[markm87]

Lord your Big Boss looks clean compared to mine. The only trouble I have seating primers is with Hornady 6.5cm brass. I have to muscle the hell out of those to get them in. Each brass is different.

 

[barefooter56]

When using a press to prime cases. Always keep in mind the huge amount of mechanical force that you can apply to that primer. This can result in crushing the primer compound in the seating process. Using a good hand priming tool like the SINCLAIR PT-2000 or a PMA TOOL priming tooll that gives you the "feel" you need to know when the primer anvil feet are bottoming in the primer pocket. These tools can also help with cartridges that have tight primer pockets like LAPUA due to the fact they lock the case and the primer ram in a straight line with the primer pocket.
Just an FYI. " To each his own"

 

[hakerman]

Lord your Big Boss looks clean compared to mine. The only trouble I have seating primers is with Hornady 6.5cm brass. I have to muscle the hell out of those to get them in. Each brass is different.

i thought mine was dirty ... ))

 

[hakerman]

When using a press to prime cases. Always keep in mind the huge amount of mechanical force that you can apply to that primer. This can result in crushing the primer compound in the seating process. Using a good hand priming tool like the SINCLAIR PT-2000 or a PMA TOOL priming tooll that gives you the "feel" you need to know when the primer anvil feet are bottoming in the primer pocket. These tools can also help with cartridges that have tight primer pockets like LAPUA due to the fact they lock the case and the primer ram in a straight line with the primer pocket.
Just an FYI. " To each his own"

yes i agree, but at the moment i am doing with press the seating of primers i mean,
as i do only 223s, so that is no pain, the case is small, and tho whole process is pretty easy,
as i do mandrel (WILSON) when priming the cases... going up for mandrel, and then down for primer seating..
i am using the lapua brass and cci 400, and on some bras, the primers is in, while on new lot of lapua the primer is sticking +0,02mm, when measuring it adds up...

anyway, i still cant find a way to unscrew the screw and set more depth inside the case...

 

[BoydAllen]

When using a press to prime cases. Always keep in mind the huge amount of mechanical force that you can apply to that primer. This can result in crushing the primer compound in the seating process. Using a good hand priming tool like the SINCLAIR PT-2000 or a PMA TOOL priming tooll that gives you the "feel" you need to know when the primer anvil feet are bottoming in the primer pocket. These tools can also help with cartridges that have tight primer pockets like LAPUA due to the fact they lock the case and the primer ram in a straight line with the primer pocket.
Just an FYI. " To each his own"

Eons ago, I decided to try priming on my Rock Chucker for the first time. Before that I had been using a RCBS hand priming tool. Back then I had pretty good grip strength due to the work that I had been doing for some time. I primed some cases, giving a good push on the press handle and then, out of curiosity, I put the primed cases in my hand tool and, lo and behold, felt the primers seat a bit deeper than they had been using the press. For that press, priming is done with the ram near the bottom of the stroke, where the leverage is much less than at the top. I have never had any ignition or accuracy issues that could be traced to priming method.

 

[JMAN80]

I have recently switched to the RCBS ram prime setup with hardtop as to have consistent seating depth and using the press gives plenty of leverage. Even have extra Lee Bench prime laying around if I do bulk and it does well.

 

[SeabeeKen]

I'll check my BB2 primer arms. My press is about 4 yrs old.

 

[SeabeeKen]

OK, check mine. There is no hole for adjustment. They are preset at the factory and a thread sealer is applied to the threads which is the yellow stuff you see. Mine is green. I would recommend a ram prime or a hand priming tool. I never liked the press priming arms and I have never used mine. I use a RCBS universal hand prime at times but currently use the derraco engineering priming die and also a Lee ram prime. Both of these have excellent feel. I have tried the bench prime tools from RCBS and Forster. They are in storage boxes and wont be used again. The derraco tool will use RCBS, Redding, and Dillon feed tubes. Top shelf tool and about 1/3 the cost of the Primal rights CPS

 

[22vartarg]

This might explain your situation.

 

[hakerman]

so it says

– NOTICE–

Primer Arm Assembly Update

Effective January 2020, for the convenience of ourcustomers, all Redding Reloading presses and the optional “Slide Bar Primer Feed System” will be shipped with two primer arm assemblies, one each for both large and small primers. Each assembly will have the large or small primer cup permanently affixed and sealed. This will eliminate all assemblyand adjustment that was previously required for aprimer size change.

ok, so i will tinker with it...