.475 Reloading Questions

[salvo]

Hi all, I guess it is time for the questions to begin!

Most of the .475 Linebough brass that I have has BBA headstamp, I take it this stands for Buffalo Bore Ammo?
Does any one know the proper primer to use in this brass?
The little reloading data that I have searched seems to show large pistol or large pistol magnum as the recommended primer. I noticed that the new Starline brass specifies large rifle primers?
I uniformed the primer pockets on my BBA headstamp brass and it required a large rifle uniformer, the pockets cleaned right up with very little if any brass removal. Is the BBA brass same as the Starline brass requiring large rifle primers?
What primers are you guys using?
Thank you,

[paul105]

Salvo,

I'm pretty sure that BB (Buffalobore) .475 cases are made by Starline

I thought you were mistaken about Starline Brass recommending large rifle primers for the .475 LB -- you're right according to Starline's website. 

Starline's .475 LB primer pockets always seemed "deep" to me, and I actually tried a large rifle primer once, to see if it would seat below the case head (it did) .   With that said, I wore out 500 Starline cases using nothing but large pistol primers.  I'm starting on a new batch of 1,000 and and have had no problems using large pistol primers.  I've never had a misfire, or any other problem with the large pistol primers, and I'm pretty sure most published load data (excluding reformed 45-70 cases which won't fit in the FA) uses large pistol primers.

Here's some info reloading for FA .475s -- it's the same link posted on your other thread.

Watch the LFNs and the SWCs -- Potential OAL and chambering problems (addressed in link below).

http://www.gboreloaded.com/forums/index.php/topic,165538.0.html

Paul

[salvo]

That's a great thread Paul, thanks for posting it.
The previous owner also said he used large pistol primers in the BBA brass also, I thought it curious that the pockets seem to be for large rifle primers.
I must admit, I am surprised that no one seems to be using magnum primers though?

I guess I will go ahead and give the large rifle primers a try.

[Ken ONeill]

Tim Sundles did indeed have Starline make the initial run of brass for Buffalo Bore. I've used Buffalo Bore and Hornady cases for more than 10 years, and have always used CCI Large Magnum Pistol Primers, having settled very quickly on H 110 as the powder.

[MS Hitman]

I do not use large rifle primers, preferring the CCI 350 Large Pistol Magnums.  John has never recommended large rifle primers, even when the cases were made from .45-70 cases.

I use both the Starline and Hornady brass.  Cast Performance and others sell bullets for the Model 83.  I have also used the Speer 400 grain Gold Dot soft point with good results.  The powders I use are H110/WW296 and HS-6.

[Lloyd Smale]

i use cci 350s for the most part in the 475. Unless im using a powder like unique that is very fast burning. then i use a stad. pistol primer. Ive never used a rifle primer and have never till now seen it recomended. I would be conserned with primers seating high and with the recoil of a 475 they could theroreticaly slam into the recoil sheild and go off.

[salvo]

The rifle primers were recessed well below the rim in the primer pocket, no problem with the 50 rds. I shot Sunday. I was using H4227, the previous owner mentioned that it was a dirty powder and to watch for unburnt granules in the cylinder/barrel. I did not notice any unburnt powder and the powder did not seem dirty at all to me, may be because of the rifle primers?

[odoh]

See the issue of LR/LP primer come up again for this cal. The Starline pockets are to LR configuration which is apprx .01" deeper than LP pockets. From all the testimonials, seems to work well w/the LPs. Think an issue can arise if one is heavy handed in seating their LPs as the lil additional depth created in the crush together w/the deeper LR pocket depth could result in FTF w/firing pins on the short side of tolerences of some individual guns. One won't hear much on this from the industry sources like we would if the situation was reversed and resulted in primers sitting too high (like one of the early runs of f he 500 S&WMag brass ~ see caution on BFR website). Be aware and seat the primers properly. Course, one can get 480ruger brass w/the correct pockets 

[MS Hitman]

The .45-70 cases originally used to make .475 Linebaugh cases are made to large rifle dimensions as well.  However, that never stopped John Linebaugh from advising against the use of large rifle primers while loading for the .475 Linebaugh.  I really see no need to second guess the man who designed the cartridge.  But then, to each his own.

[Lloyd Smale]

guess i kind of agree with hitman. When i started loading for it there was no data anywhere and i got my first load recomendations for John and from my buddy who has been shooting linebaughs since he bought the one of the first few 500s john built. His 475 is one of johns first too and all they ever used were pistol primers. the only thing id argue with as to johns recomendation is that he isnt a real avid handloader. He knows his stuff but just doesnt have time for a alot of it. He told me once that all he ever used even with 110 is a standard pistol primer and used no mags. We done enough testing to know that when large quanitys of 110 or other ball powders are used that a cci350 is the primer of choise. Alot of this too comes from the fact that it doesnt get near as cold in cody as it does here in michingan.

[salvo]

I'll use large pistol mag primers on this next batch of .475 I don't have any CCI's but do have a good supply of the Federal 155M.
Probably not much difference in a LPM & LR primer other than the size of the cup? It is nice to know rifle primers work with the primer shortage and all.
I remember when the Dan Wesson 445 first came out, I ordered a bunch of brass with .445 GATES head stamp, the brass was made with LP primer pockets, every one was converting there brass to LR primer pockets the Silhouette was even selling the reamer. I converted some myself but could not tell a difference in accuracy between the two. I'm still shooting that original Gates brass, I wonder what primer pocket Starline has settled on with there new brass?

[MS Hitman]

I still have some of the .445 Supermag brass I made from .303 Brit; before the Gates brass was available.  Used only CCI 350s in that as well.

[odoh]

. . . . . . .  I have also used the Speer 400 grain Gold Dot soft point with good results.  The powders I use are H110/WW296 and HS-6.

I've used HS6 in the 454 and was looking for pub'd data for using it in the 475L w/o much luck ~ do you have a source or care to share data? HS7/W571 data would be appreciated also ~

[Lloyd Smale]

14 grains of hs6 with a 400 grain bullet is a great load in my linebaughs. It will get you a tad better then a 1000 fps and will kill about anything that walks and is pleasant to shoot.

[odoh]

I'm hoping/looking for something to go w/the 325gr Lee bullet ~ My Lee 400gr is a mite long and tho I know I'll need to get a different one eventually, I wanna start shooting what I have ~ ~ ~ Thanks for the input

[MS Hitman]

The data  got from John states 14 to 16 grains of HS-6.  Don't load the other two powders.

[Gun 4 Fun]

9.0 grains of 231 under almost any bullet capped with a CCI 300 is an awfully nice load too. 900-975 FPS depending on barrel length.

[Axehandle]

Seen lots of high primers using LR primers in pistol primer pocket that are supposed to be for LR primers... A primer above the pocket at all will hang up in a FA revolver quick....  Sounding like pretty much everybody uses the LP primers in the LR primer pockets....
JT writes about powders like H110 being exceptionally hard to light when it get cold and sings praises for the CCI mag primers....  Other things like bullet weight and crimp play into how well the powder burns....