I use Lapua brass (100) and 20 Normas. No other brass to compare with. We do not get Ramshot powders here. So my hottest loads are AR 2208 (Varget) and 286 gr Megas at about 2430 fps. I haven't really botehred to up the velocity as the accuracy is great & i shoot well with the load. Even with Barnes 250 TSX I have not gone above 2570 fps which is very mild. My max with Woodleigh 320gr bullets is 2230 fps.

I have been a big fan of JB for a long time as I find his analysis and practical tests very credible and useful. I really like his writing on exposing old myths and developing new rules of thumb.

I found I got better groups with Match primers but not Magnum. I got better results with Federal primers. Smaller and more concentric groups.

quote:

Originally posted by Nakihunter:
A7Dave

I think you have a typo on the max load. It should be 60gr or 61` gr of Re15 & not 51 gr for the 286 gr bullets!!

Check this out http://www.realguns.com/loads/93x62mm.htm

This site has been updated with Re17 in place of Re15.

A while ago they had 60 gr of Re15 as max for Barnes TSX 286gr bullets.

PM me if you want some good info on 9.3X62 articles, bullet tests loads etc.

Cheers

Thanks,

I agree. It should be a typo. I'm going to contact Barnes and see what they say.

Dave

If you want to hedge - use mag primers, pay attention to published data where they didn't use mags (their pressures may be lower than yours) and adjust accordingly.

If you are interested/curious - load up some with non mags and mags (all else equal) and chrony them. If your SD is better with one particular primer then that's what you use.

For my 9.3x62 I used non mags with Varget and faster powders, and mag primers when I loaded anything in that case with a slower burn rate.

Nate

FWIW - when I was building up a load for a GS HV 230 gr custom (drive band bullet) I had a great suport by Gerard and these are his words (regarding magnum primers and drive band bullets):

"One of the big differences between drive band bullets and smooth bullets is the lightness with which a drive band bullet slips through the throat of the rifle and into the rifling. The resistance to engraving is about a quarter of that of a smooth bullet.If you use a magnum primer the pressure from the primer igniting will move the powder charge and the bullet forwards so that, when the powder ignites, the bullet is already engaged in the rifling and you have artificially created a bigger case. As we know, the same charge in a bigger case lowers pressure. This whole principle works best when the selection of powder is such that the bullet sits tight on top of the charge. The principle is almost unnoticable if a very fast powder is used with low charge levels and there is a lot of air space in the case. Air is compressed and the bullet does not move under primer ignition alone."

So yes, I use Mag. primers for 9,3x62 GS HV 230gr. load (bullet sits on the top of the charge - no powder sloshing).