Search:

165sst. 200m. 2760fps.
87815

Yes. In my older S&L M65dl which has a long lead my best powder was Re22 with AR2213sc a close second. This new rifle seems to like 2209 and 4350 but I've yet to try 2213 in it (180gn SGK's). The...

Yes, without any problem. The rifling lands have a gradual taper before full dimension so the contact is still very light. This is in my barrel and might not be the case in others.

Well, I seated the 165 sst's 5 thou further into the lands. No felt resistance closing the bolt. Group at 200m under 1moa with no flyers . No great pressure increase showing on primers. Load quite...

OK Danny

Ok. I wasn't sure. That's a looong jump. Thanks JWB and gundoc. The bbl I'm playing around with has a very short lead. For example a coal with SGK 165 or 180 touching lands is only 3.250". Quite...

gundoc. Are you saying a 1mm engagement of the ogive / shank junction seated into the lands?

Been down those tracks, then to the hornady tool which is more precise, but now use carbon black on assembled blanks and gradually seat bullet deeper until rifling marks barely show. What I found...

Fair enough. I think the lead / rifling junction on mine is actually tapered rifling. With sst's I get maybe one flyer out to an moa from the group sometimes and I suspect it is an ogive variance...

In addition, I am finding ogive position on SST's can vary front or back by 20+ thou". Bit of a worry.

There are differences in ogive shape between secant (SST) and conventional (sierra) bullets.
I am loading 180 SGK's and testing 165 sst's as well.
My experience so far is that the sst like to be at...