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Sierra #2155 & #2156 155 grain MK
Posted: Thu Mar 07, 2013 2:01 pm
by ColinR
I usually use #2155 Sierra MK 155gr but thought I'd try the #2156 Palma version. However I cannot find any load data for this bullet using N140. It is a longer bullet so will not corellate with the #2155 version. VV don't list it and it's not in my Sierra reloading guide which I think is the latest. Any help please.
Re: Sierra #2155 & #2156 155 grain MK
Posted: Thu Mar 07, 2013 2:29 pm
by 20series
You'll find that the oal will be different because of the slimmer profile of 2156 youll be able to load them longer
as for powder weights i found them to be pretty much identical to 2155
Hth
Alan
Re: Sierra #2155 & #2156 155 grain MK
Posted: Thu Mar 07, 2013 2:38 pm
by ColinR
I am wondering if they will fit my AI mags in that case.
Re: Sierra #2155 & #2156 155 grain MK
Posted: Thu Mar 07, 2013 3:19 pm
by 20series
ColinR wrote:I am wondering if they will fit my AI mags in that case.
Shouldnt be a problem, its more the shape than length..If i remember correctly it was about 50thou longer into the lands
Re: Sierra #2155 & #2156 155 grain MK
Posted: Thu Mar 07, 2013 3:24 pm
by TJC
ColinR wrote:I am wondering if they will fit my AI mags in that case.
Yes no problem. AI is usually 2.85 min.
Re: Sierra #2155 & #2156 155 grain MK
Posted: Thu Mar 07, 2013 3:34 pm
by ColinR
Thanks all for info. #2155 shoot superbly in my AI so I wonder why I'm bothering with trying #2156, but nothing ventured nothing gained. I usually use 44.2 of N140 so will start a little lower with the #2156's.
Re: Sierra #2155 & #2156 155 grain MK
Posted: Thu Mar 07, 2013 3:53 pm
by GazMorris
20series wrote:as for powder weights i found them to be pretty much identical to 2155
x2
When I was using Vit N140 I used to use 46.0grn for both (albeit with different bullet seating lengths) with no problems. The usual disclaimers about starting lower and working up apply.
Cheers,
Gaz