300wsm Seating question ...

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Wissem70

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Hello folks,

I am new around here and I wanted to ask a few ?'s. I have read the board for sometime now and have found some very informative info on here.
Keep up the good work guys.

I am starting to reload for my Model70 300WSM. Its for hunting. I would like to better my accuracy and I also want to use Nosler Accubonds. I haven't reloaded before. I have all the neccessary equipment. So I think anyways.

I was wondering what would be a good starting point for off the land? The Lyman book I have says .020-.050. Is there a starting point that everyone uses?
Also should I be crimping the case? I tried a few dummie rounds and found the bullet loose enough to press into the case which I would imagine would change the OAL if knocked around?

Thanks

Matt
 
.020" is about right, or as long as your magazine will allow if you have a longer throat

no need to crimp but there might be something out of whack with your sizer die if you can push a bullet into the neck after its been sized. What kind of die do you have?
 
I have a full length RCBS set of dies.
I also keep getting a strange OAL # of 2.984? 300WSM should be 2.860.
Is that what you mean by longer throat?
My gun has 200 factory rounds through it so far.

Thanks for the reply todbartell

Matt
 
I have started the last two rifles I load for touching the lands and adjusted from there. Inboth cases the sweet spot was only about .015 off the lands, if I have started at .030 I probably would have moved the wrong way first wasting bullets and powder.
 
the best way to find out what you want for a oal is to get a stoney point gauge and meassure it. Then back of .05 and shoot a couple (3) rnds and then move tighter in your measurments. Just remember that if its a hunting round you want reliability so if your engraving your lands it might not be a good hunting round. you want easy feeding and if your only shooting 2 moa you will kill about everything you pull the trigger on
 
The gun shoots really good with factory 1 moa @100yrds and 2moa@200. I have a laminate stock almost ready to go on and I wanted to try reloading and use the accubonds. I have never reloaded before so I wanted to be sure.
I have a stoney point gauge. That is where I am getting 2.984. That number seems far off compared to the 2.860 max length?
 
every gun is diffrent the manuals are printed on the safe side (there manuals are for just about every gun chamber made)
go off of your meassurments, make sure they fit in your mag and your chamber easy
 
2.860 is SAAMI OAL - meaning it should chamber reliably in most rifles. Your OAL is for your rifle, most will be longer then SAAMI specs, so need to worry.

As far as seating depth with cup and core I generally start at .010 -.020". For Barnes I now start and usually end up at .050" off the lands.

As stated the most important thing is magazine COL allowance, otherwise you'll end up with a single shot. Sounds like you have room to spare, so seat them .010 - .020" and have at her.

As far as crimping, I see no need for your rifle.

Good Luck and enjoy this addicting hobby:)
 
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