hi all,
im new to this board.just found it.i used to use shooters when i had problems but can no longer use it.are some of the old members from it on this board?anyhow,i started loading for my 45 colt,using starline brass.seems everytime i reload my cases get a little shorter.am i crimping them to much?i use a separate die and dont have any trouble collasping them.
thanks

Welcome Tomas,

While doing some testing of the 'Wildey 45 Win. Mag' about 20 years ago I found that 'straight wall' rimless cases tend to get shorter as you use them and as I reloaded I found that I never had to trim the cases.

Good shooting,
Headache

I shoot a lot of 45 Colt and have done so for many years. I've not run across that problem. I'll fire my cases once and trim them to uniform length and that seems to be all that is required for the life of the case, which seems to be forever.
What sort of loads are you using?
Jim

Tomas, this has nothing to do with your question about the cases, but I thought that I would confirm that many of the folks from Shooters.com now hang out here.

Regards,
Tom

arkypete
im using 5.5 grns of bullseye and lyman 454190 w/w cast bullets.the starline brass was about .003 over min lenght when new.after 3-5 loadings they are .003-.005 under min lenght.if i have to trim after every loading,wont i have to keep resetting my crimp?as my cases get shorter,wont my velocity increase and pressure change.i realize that with this load it probably wont amount to much, but wont my point of impact change after so many trimmings?thanks for the input.
tomas

t to much,but wont my point of impact change?

kingfisher,
glad to hear hear many of the shooter posters are on this board.they sure wre alot of help when i posted on that board.


tomas

Tomas
Most interesting.
Are you trimming these cases more then once?
I trim my cases once after the intial firing and seldom do again.
I'm sure you will get some point of impact change due to reduced case capacity, longer jump thru the cyclinder to the rifling.
Trim the cases once and let them do their thing.
Ji

I never trim pistol brass. I shoot IPSC and IDPA competitions and reload lots. I used to buy new brass, but now I buy once fired brass. I had the same experience, they shrink, not grow. This is in the .45acp, I also shoot quite a bit of .44mag and dont trim them either.
For rifle I trim once and use an RCBS X die.

arkypete,
sofar i havent trimmed the cases yet.they were only 1.178 when new.after each firing they shrink, but not all the same.i figure at some point ill have to trim them all to same lenght to keep my crimp consistant.maybe its the starline brass.should i trie another brand my next batch of brass?

tomas

iceholeken
i recently puchased a used witness compact in 45 acp.it shot 20" low at 25 yds.i sent it back to florida and they put on a new slide with super sights.shot right on at 25 with no adjustment.im planning on loading for it in the near future.planning on using a 200 grn semi wad cutter rcbs mould i traded for awhile back.is this a good bullet for the 45 acp?if so, can you suggest a load for it?when you buy your once fired brass,are the cases all the same or are they mixed?appreciate the help.

tomas

You probably don't need to repeatedly trim straight wall pistol cases. I have never had to with 10+ loadings in .357 and .38 spl. Necks split from repeated crimping long before case length seems to become an issue.