Case length after resizing 22-250 - The Firearms Forum

chubcobear · 03-18-2012, 07:42 AM

What case length do you use after resizing 22-250 case? Is there a best starting length? MD Smith recommends 1.9020 and isn't that kinda short? Just curious. Thanks.

bntyhntr6975 · 03-18-2012, 10:10 AM

I just take them down to whatever the listed trim to length is, according to my Lyman manual. I don't have it handy or can recall it at the moment. Whatever your manual says, try to abide by it.

Bindernut · 03-19-2012, 10:57 AM

1.912" is the SAAMI spec max length
1.902" is the SAAMI "trim-to" length
That's typical SAMMI trim spec length....0.010" less than the max length.

Measure your cases after resizing them. If they're at 1.912" or longer, then it's time to trim them. Trim to 1.902" and they should be good for a few loadings until you need to trim them again. No need to trim every time.

My Lee pilot for the .22-250 actually trims em to a nice even 1.900" so that's what I use. I'm not gonna worry about 0.002" shorter than spec.

03-18-2012, 07:42 AM	#1
chubcobear V.I.P. Member Join Date: Jan 2009 Location: Central Arkansas Posts: 132	Case length after resizing 22-250 What case length do you use after resizing 22-250 case? Is there a best starting length? MD Smith recommends 1.9020 and isn't that kinda short? Just curious. Thanks. __________________ There is no distinctly native American criminal class except Congress. - Mark Twain "....life isn't fair. The central threat to freedom comes from those think they can use politics to make it so. " --Bradley Gitz -->

03-18-2012, 10:10 AM	#2
bntyhntr6975 V.I.P. Member Join Date: May 2009 Location: Wichita, Ks. Posts: 296	Re: Case length after resizing 22-250 I just take them down to whatever the listed trim to length is, according to my Lyman manual. I don't have it handy or can recall it at the moment. Whatever your manual says, try to abide by it. __________________ There is a fine line between paranoid and prepared.

03-19-2012, 10:57 AM	#3
Bindernut Advanced Senior Member Join Date: Oct 2007 Location: ND, USA Posts: 2,489	Re: Case length after resizing 22-250 1.912" is the SAAMI spec max length 1.902" is the SAAMI "trim-to" length That's typical SAMMI trim spec length....0.010" less than the max length. Measure your cases after resizing them. If they're at 1.912" or longer, then it's time to trim them. Trim to 1.902" and they should be good for a few loadings until you need to trim them again. No need to trim every time. My Lee pilot for the .22-250 actually trims em to a nice even 1.900" so that's what I use. I'm not gonna worry about 0.002" shorter than spec.