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S P G loaded ammo shelf life (Read 447 times)

1Hawkeye Junior Member Online Posts: 73 Location: South end of Northern Virginia Joined: Jun 29^th, 2019	S P G loaded ammo shelf life Oct 1^st, 2024 at 6:06pm	Print Post
	Does spg bullet lube break down over time in loaded rounds? I'm getting ready to switch over to it from using the RCBS bullet lube but am wondering about if it has a life span because I sometimes load ammo that sits for a few years before I need it. I know that the RCBS (nra formula) can sit forever but SPG is a little different.


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marlinguy Frequent Elocutionist Offline Ballards may be weaker, but they sure are neater! Posts: 16091 Location: Oregon Joined: Feb 2^nd, 2009	Re: S P G loaded ammo shelf life Reply #1 - Oct 1^st, 2024 at 6:24pm	Print Post
	Depends on the storage area temperature. If it's mid 70's or lower no problem, but if your storage room gets higher temps then SPG may begin to melt and seep into the cases. My room is in my basement and I have no issues with bullets loaded and lubed with SPG stored for a long time.

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JHand Participating Member Offline Posts: 49 Joined: Apr 15^th, 2024	Re: S P G loaded ammo shelf life Reply #2 - Oct 1^st, 2024 at 7:13pm	Print Post
	I did get the tip for black powder lube to store bullet down. That way if the lube does start to seep, it runs out of the case vs down into the powder. For longevity, I've had ammo loaded for a few months with no problem


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marlinguy Frequent Elocutionist Offline Ballards may be weaker, but they sure are neater! Posts: 16091 Location: Oregon Joined: Feb 2^nd, 2009	Re: S P G loaded ammo shelf life Reply #3 - Oct 1^st, 2024 at 7:55pm	Print Post
	JHand wrote on Oct 1^st, 2024 at 7:13pm: I did get the tip for black powder lube to store bullet down. That way if the lube does start to seep, it runs out of the case vs down into the powder. For longevity, I've had ammo loaded for a few months with no problem That's good for BP load that have full cases, but for smokeless loads putting cartridges bullet down will cause powder to stick to the bases of the bullets and stay there. The rest of the powder will drop back against the primer, and that could cause deviations or spreads in velocity.

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Deadeye Bly Frequent Elocutionist Offline Posts: 1057 Location: Stephens City Joined: Feb 25^th, 2011	Re: S P G loaded ammo shelf life Reply #4 - Oct 1^st, 2024 at 8:06pm	Print Post
	I shot some ammo that was at least 5 yrs old to get the cases for another rifle and it shot as good as when new. It was stored in my basement the entire time.


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westerner Frequent Elocutionist Offline deleted posts and threads record holder. Posts: 11462 Location: Why, out West of course Joined: May 29^th, 2006	Re: S P G loaded ammo shelf life Reply #5 - Oct 1^st, 2024 at 8:54pm	Print Post
	1Hawkeye wrote on Oct 1^st, 2024 at 6:06pm: Does spg bullet lube break down over time in loaded rounds? I'm getting ready to switch over to it from using the RCBS bullet lube but am wondering about if it has a life span because I sometimes load ammo that sits for a few years before I need it. I know that the RCBS (nra formula) can sit forever but SPG is a little different. So what you really need is someone who stored fixed ammo lubed with Spudge and after twenty years took them apart to see if the Spudge deteriorated. Good luck with that. Load it and shoot it.

	A blind squirrel runs into a tree every once in a while.
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KaiserKong Junior Member Offline Posts: 57 Joined: Apr 26^th, 2022	Re: S P G loaded ammo shelf life Reply #6 - Oct 1^st, 2024 at 11:43pm	Print Post
	I recall either Townsend Whalen book Why Not Load Your Own or Phil Sharp’s Handloader book discussion lube longevity. Many lubes have the tendency to oxidize and crack/chip off if the grooves are exposed (not in the case neck). Apparently if the lube has lanolin in it that prevents or minimizes the oxidation and greatly extends life of the lube.


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silver Full Member Offline Posts: 199 Location: Central wi, Joined: Sep 20^th, 2016	Re: S P G loaded ammo shelf life Reply #7 - Oct 2^nd, 2024 at 7:23am	Print Post
	My experience is if the lube grooves are exposed The lube does tend to dry out. But not in the case. It will get a little brittle and can fall out of grooves. Lube in cases Will turn green, don’t know if that affects it or not. I shoot whatever I load that year . I don’t let it sit all winter Due to very dry air. Your environment my vary the drying out.


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calledflyer Frequent Elocutionist Offline Posts: 3565 Joined: Mar 9^th, 2015	Re: S P G loaded ammo shelf life Reply #8 - Oct 2^nd, 2024 at 9:45am	Print Post
	I inherited a supply of bullets from a friend's estate that were cast and lubed in 1954. As of about 2020, when I last loaded some they were doing peachy. I never considered relubing them, but I really cannot say what the lube is. That one, at least, goes the distance.


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