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Sierra 2156 base to ogive

Posted: Wed May 30, 2018 9:18 am
by Jase PTRC
Hello, im wondering if anyone has these they could measure base to ogive. Also looking for feedback on consistancy within batches

Re: Sierra 2156 base to ogive

Posted: Wed May 30, 2018 9:42 am
by scott/r
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.

Re: Sierra 2156 base to ogive

Posted: Wed May 30, 2018 10:20 am
by Gyro
1527639503845825183042.jpg
1527639503845825183042.jpg


Them pics are are upside down I think ! Hope they help anyway. From litz book.

Re: Sierra 2156 base to ogive

Posted: Wed May 30, 2018 11:01 am
by Barry Davies
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

Re: Sierra 2156 base to ogive

Posted: Wed May 30, 2018 1:51 pm
by Jase PTRC
Bugger. I think they may be too short to use in my current chamber

Re: Sierra 2156 base to ogive

Posted: Wed May 30, 2018 7:06 pm
by scott/r
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.

Re: Sierra 2156 base to ogive

Posted: Wed May 30, 2018 8:11 pm
by Jase PTRC
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.