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Post by Deleted on Jun 10, 2015 15:09:42 GMT -5
The other day I posted my first reload and I'm pretty excited to get going. I was only able to load one cause lots of stuff going on yet I wanted to see if I could get it loaded. I looked at a reference to get o.a.l. which showed an 85 boattail at 2.620". I ended up a little shorter than that and with it being one cartridge I felt it's okay. Now that I'm ready to completely get going I'm curious as to what o.a.l. people are using for best accuracy? I have a Remington 700 SPS Varmint 243. I do realize everyone is different yet I would like a good starting point. Any help is greatly appreciated, thanks.
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Post by Deleted on Jun 10, 2015 15:30:30 GMT -5
Did a search and found that people are sizing to 2.650-2.655" so I guess I kinda found what I'm looking for however I noticed something. No one sends to use Winchester standard large rifle primers but federal or CCI, is the Winchester primers not that good? I bought 1000 of them and now wonder if that might have been a mistake???
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Post by hankinsrfls on Jun 10, 2015 15:35:37 GMT -5
Rat...
If you're looking for best accuracy you will need to play with seating depth.. Start by seating the bullet to just touch the lands. Load five rounds, then push the bullet in .025 or so and load 5 more. Continue doing this until you have 20 loaded rounds.. Now go shoot these for groups and let the best group determine your seating depth..
Something else to keep in mind is to make sure your loaded rounds will fit in the magazine.
Also you can come up with more combinations than you will ever be able to test so just go with a good book load and kinda fine tune it..
You will probably be in good shape if you load to max OAL and just shoot the heck out of em....
Jeff Hankins...
Rat...
There's nothing wrong with Winchester primers.. I have and have used 1000's of them over the years...
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Post by 7mmfreak on Jun 10, 2015 20:43:33 GMT -5
Winchester primers are just fine. They aren't technically "match" primers but they tend to produce good results.
As for seating depth there is no set solution. Get a gauge and figure out what your throat looks like. With bullet length, case neck length, and throat length you may or may not get close with magazine restriction. It will let you get an idea of how long you can push it so you can knock out seating depth test.
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Post by Deleted on Jun 11, 2015 12:07:24 GMT -5
Loaded 10 rounds today 87 Vmax 2.650" O.A.L 43g-IMR4350 Win lg standard primers  Same load as above 2.655" O.A.L  |
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Post by ported45 on Jul 6, 2015 12:49:48 GMT -5
I sacrifice a cartridge to make an OAL gauge for the cartridges that I reload. Take a sized and trimmed piece of brass and cut through the neck and shoulder back to the body on one side of the cartridge with a Dremel cutoff wheel. Use a small file to get rid of burrs inside and out.
Then you can start a bullet into the OAL gauge cartridge with a lot of the bullet sticking out. Chamber the OAL gauge and close the action. This will cause the bullet to be seated into the brass with the bullet contacting the rifling. TADA!! Maximum OAL possible without jamming the bullet into the rifling. I then drop my OAL gauge into the die box after recording the measurement.
I usually back off that length about 0.006" for my initial length or shorten the length to work in the magazine, whichever is shorter if I want to make sure the loaded rounds will work through the magazine. Then you can continue shortening your OAL to find the sweet spot and record that measurement.
Don't try to force the bolt closed if it does not want to close easily, that usually means that you have not sized the brass enough or that you are cramming the bullet hard into the rifling which will result in excessive pressure when fired.
Good luck and good shooting!!
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