Sierra 2156 base to ogive

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Jase PTRC
Posts: 221
Joined: Sat Nov 29, 2014 11:15 pm
Location: Adelaide SA "PTRC"

Sierra 2156 base to ogive

#1 Postby Jase PTRC » Wed May 30, 2018 9:18 am

Hello, im wondering if anyone has these they could measure base to ogive. Also looking for feedback on consistancy within batches

scott/r
Posts: 885
Joined: Wed Aug 27, 2014 8:22 pm
Location: far north brisbane

Re: Sierra 2156 base to ogive

#2 Postby scott/r » Wed May 30, 2018 9:42 am

Unable to measure them at the moment as I'm at work. But, they seat very similar to the 155.5 bergers if that's any help to you. Consistency is very good so far with the 2 boxs I've opened. Especially when you consider that they are factory pointed.

Gyro
Posts: 764
Joined: Sat Jun 10, 2017 2:44 pm
Location: New Zealand

Re: Sierra 2156 base to ogive

#3 Postby Gyro » Wed May 30, 2018 10:20 am

1527639503845825183042.jpg
1527639503845825183042.jpg


Them pics are are upside down I think ! Hope they help anyway. From litz book.
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Barry Davies
Posts: 1383
Joined: Tue Aug 24, 2010 12:11 pm

Re: Sierra 2156 base to ogive

#4 Postby Barry Davies » Wed May 30, 2018 11:01 am

Like all projectiles they vary.
Gyro's pic shows them at 0.390".
I have several batches and they vary between 0.456" and 0.474"
Within a batch, no more than 0.002" variation.
Barry

Jase PTRC
Posts: 221
Joined: Sat Nov 29, 2014 11:15 pm
Location: Adelaide SA "PTRC"

Re: Sierra 2156 base to ogive

#5 Postby Jase PTRC » Wed May 30, 2018 1:51 pm

Bugger. I think they may be too short to use in my current chamber

scott/r
Posts: 885
Joined: Wed Aug 27, 2014 8:22 pm
Location: far north brisbane

Re: Sierra 2156 base to ogive

#6 Postby scott/r » Wed May 30, 2018 7:06 pm

If you've got a long throat in your chamber, try the 155.5 hbc projectiles. I had an old omark that the 155.5 bergers only just touched the case mouth sitting on the land, but the hbc seated about half way down the neck.
Scott.

Jase PTRC
Posts: 221
Joined: Sat Nov 29, 2014 11:15 pm
Location: Adelaide SA "PTRC"

Re: Sierra 2156 base to ogive

#7 Postby Jase PTRC » Wed May 30, 2018 8:11 pm

Not overly long but the sierras sound like they are quite a bit shorter than the berger full bore im using which measure .530 average base to ogive (on my current lot) i was just thinking of giving the sierras a try for something different.

I have tried hbcs and this barrel does not seem to like them.


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