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PatrickB
PostPosted: Mon Jun 18, 2018 10:13 am  Reply with quote
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Joined: 16 Dec 2007
Posts: 498
Location: Minnesota

Getting back into reloading after a few years and I was double checking my old notes and information. I have different guns now so I want to double check my understanding of the proof marks and appropriate loads.

Gun 1
Brit SxS built in the early 1900s. Re-proofed for 2 3/4 chambers 3 1/4 tons in 1961 while being totally restored by the maker. Based on the forum Announcement: Proof and Pressure thread the service pressure guideline would suggest loads less than 9500 PSI.

Gun 2
Brit SxS built in 1948. Proof marks 2 3/4 chambers 1 1/8oz loads. I'm less clear on this but it looks like the service pressure would also be for loads less than 9500 PSI.

I shoot 3/4, 7/8 or 1oz 1200fps loads and have several tested loads which range from 7000-8500 PSI. Looks like those loads should be fine in these guns unless I'm not reading the information about proof marks correctly.
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Dave Erickson
PostPosted: Mon Jun 18, 2018 12:49 pm  Reply with quote
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Joined: 06 Nov 2009
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I'm no expert, but you should be plenty safe with those loads.
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gjw
PostPosted: Mon Jun 18, 2018 1:35 pm  Reply with quote



Joined: 09 Sep 2006
Posts: 764
Location: NoDak

Hi, your good to go. The pressures your loading are well within the service pressures for your guns.

Have fun shooting them!

Best,

Greg

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Gregory J. Westberg
MSG, USA
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