Advice Sought from Those Handloading for a Schultz and Larsen Rifle

Brno8x57 Thanks for your above post and your PM last night .
I tried inserting a .284 bullet into the muzzle of my project rifle and it seemed to be a tight fit(wouldn't go in).
I have 2 boxes of .287 bullets to try if the .284s don't pan out.
I will experiment as soon as I get some 7x61 S&H brass ....nothing yet from 2 possibles.....???
 
"tight fit" - the bullet usually needs to be the diameter of the grooves - not the diameter between the top of the lands. So, a bullet should not "fit" into a muzzle - if it did, that would mean the land diameter is larger than the bullet. Not likely to work well. But, actually will not know until you try. I have an odd BSA rifle here - for whatever reason, two of us have slugged the bore - it is correctly chambered for a 270 Winchester cartridge, has a bore diameter (top of lands) at .270", but has a groove diameter of .282" - should be about .277" if it was a "correct" 270 barrel. So far, jacketed base bullets (Speer, Hornady, etc.) apparently are not sealing within that barrel - 4 to 5 inch 3 shot groups at 25 yards. Last ditch attempt will be with Nosler Partitions, and hoping their exposed lead base might "swell up" to fill that barrel - just need to get it out and try that!!!
 
Mbogo I tried the search engine last night and all I got was about 5 hits on this thread ...but I don't have much luck with the search engine on this web site in the past.

I think the boxes of .287 bullets that I have are Speer 160 SP .
 
The Hornady 7th manual is what I had at the time when we loaded up the 7x61 S&H - they used a Fed 210 primer - so a Large Rifle primer, not a Magnum. We used IMR 4350 powder and 154 grain Hornady SP bullets. p. 376 The same book, Hornady 7th, calls for WLRM primers for 308 Norma Mag - p. 494 - so that would be a magnum primer that they used - I have not loaded for it yet. I now have the Hornady 9th manual - 7x61 S&H no longer listed; 308 Norma Magnum is still used with the WLRM primers... Nosler #9 shows Fed 215 primers for their 308 Norma Magnum loads - I went back through to Nosler #3 and did not find the 7x61 S&H listed. Also, in the "Lab Notes" from Loaddata subscription, they used Fed 210 primers with IMR4350 powder in 7x61 S&H with comment to back off powder charge if switching to Magnum primers.

I do not swap between Large Rifle and Magnum primers without backing off the powder charge and working back up again. I prefer to use the Fed 215 for most loads that will be used in very cold weather - might be just an old habit - obviously did not do so with that work-up for the 7x61 S&H. Same with a cartridge with a belt - I tend to use the same Fed 215 primer, if the cartridge has a belt and work up powder charges with that. Seems to work fine for my hunting loads, so far.
 
A late thought - might be significant if you have not loaded for the 7x61 S&H previously. Norma made two different brass for that same chamber. "Original" - older, thicker cases will have 7x61 S&H "Re" on the head stamp. Newer, thinner Norma cases will be "7x61 Super" on the head stamp. The difference is found in the wall thickness and the solid case head depth. Using IMR 4350 powder, I found there to be at least 5 grains difference in the brass capacity, so be aware of that difference. I do not know of any other cartridge with that much difference - is even more difference than the commercial 308 Win and the military 7.62 NATO brass that I have checked. The "newer" 7x61 Super brass was an attempt to catch up to the newly introduced 7mm Rem Mag - Norma did not quite get there.

EDIT: - I re-read this thread - the two types of brass were covered in Post #4 and #5 - my bad!!!
 
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nope wrong thread but can't delete picture ... any how that is the press that I hope to repair and use to reload my 7x61 S&H and one of the dies for it .
 
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I have about 12 old Herter's shell holders , one of them, a #8 is a perfect fit for the six 7x61 S&H brass that I have . My problem is the shell holders won't fit any of my presses . Is there an adapter out there that will join the two shell holders or do I hafta obtain a different press or ram?
The other shell holders hold a variety of brass 270 ,303 etc., even one for a 12 gauge .
 
I had an older press - Herter's Super C, I think it was called. I also have a couple RCBS presses. The shell holders for the Super C do not come close to fitting the RCBS presses - if there is an adapter, I do not know that. I think the Herter's shell holders were specifically and uniquely for the Herter's line of presses... In my RCBS press, for both the Norma S&H "Re" brass and the "Super" brass, same size as any other belted magnum - 7mm Rem mag, 338 Win mag, 300 Win Mag, 375 H&H, 458 Win Mag, etc.
 
Some earlier shellholder charts showed the RCBS #26 as the correct one for the 7x61S&H. This may have been true for the earlier 7x61S&H Re brass (prior to the 7x61 Super brass). It's possible that the rim and groove dimensions on the earlier 7x61S&H Re brass were such that the more-usual RCBS #4 (general belted magnum) didn't work properly. I have both the #26 and #4 and can confirm that both work fine with 7x61 Super brass.
 
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