Bullet seating depth for .338LP and C.O.L.

D

DG Photography

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Just had a question before I head to the range tomorrow ? The seating depth I ended up using for my .338 Timberwolf with Lapua brass 250 grain scenar gave me a C.O.L. of 92.00 mm anything more will not chamber easily this goes against the data supplied by Lapua but seems to work great no signs of over pressure. My ? is it safe to try the reloading data max powder charge I have tried up to 86.5 grains with no problems and plan on trying 88 grains. The case overall length stated for the 250 scenar and 300 scenar is 93.5mm
the 300 grain scenar will chamber at 93.5 but the 250 will not any thoughts. Thanks.
 
DG .............

You didn't mention which powder you're using, and you need to understand that your difficult chambering could easily be caused by something else. It's not safe to get this type of loading information from strangers on the Internet. It looks like you would do well to read some good reloading manuals, and make your reloading decisions based on what ever pressure signs YOU are seeing. There's not enough information provided here to get a safe reply to work with. Making a 1.5 grain increase in powder can be risky, especially if you're near the max load and not sure about your C.O.L. setting.

- Innovative
 
First off what powder?
Second the 93.5mm oal is correct for the 250 Scenar, I have no data for the 300.
The rifle should be able to chamber factory ammo with the 250gr have you tried this?
bb
 
Assuming that you have the required tools to accurately measure to the ogive of the bullet you can try seating the bullet deeper until the round chambers easily since the load you are using is not the maximum load. This does not mean that you will be able to reach maximum without pressure signs, I am simply responding to your comments that you presently don't see pressure signs. It is also very possible that the ogive location between the 250 & 300 are not the same and this will give you different seating depths but then again you will require tools that will allow you to measure this differences.
bigbull
 
bigbull said:
Assuming that you have the required tools to accurately measure to the ogive of the bullet you can try seating the bullet deeper until the round chambers easily since the load you are using is not the maximum load. This does not mean that you will be able to reach maximum without pressure signs, I am simply responding to your comments that you presently don't see pressure signs. It is also very possible that the ogive location between the 250 & 300 are not the same and this will give you different seating depths but then again you will require tools that will allow you to measure this differences.
bigbull
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Thanks!
 
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