Re: Reloader 33 in Lapua
alright my friend hear is what I have so far.. first rifle specs
26inch rock creek 1/9.5 twist
stiller tac 338 with seekins box mag
338 lapua mag built by Kevin cram MCR
loads are with rl33, lapua virgin brass, fed215m, 300otms
load workup was done at 450ft elevation temp 50 degrees.
started at 91 grains to b safe. low starting point IMO.. in worked up to 103g of powder in 1 grain increments to get baseline and save bullets. low fps was around 2450.. with 103 catching around 2870 but my chrono is like a woman sometimes;) I did all workup at 200 yards, with all but 2 rounds going into a 1.75-2 inch area.. for my rifle 99-102 shot into almost the same hole. 103 showed sign of stiff bolt.. slight but enough that I will not go farther, but showed no other signs such as flat primer, loose pockets or ejector marks of any kind. this was compressed load with my seating depth which was 3.050 for all work up.. which is .090 off lands for me. I then went back to the house and loaded 5 rounds at 100..100.5.... and so on.. and took them right out to 500. all loads shot under or at 1/2 moa.. but best was with 100.5 grains with shot into 1.75 at 500. fps average was 2775 but drop will confirm forsure tomorrow when I do 700-1000 yards.. I would be happy with any of those loads. I have an es of 9 with that load... the others has es of under 20 so no worries their either.. I also tested them in 25 degree cases and saw little to any fps change.. this powder is GTG I think.. I will have more data tomorrow as I'm loading some at 100.5 grains and 101 and doing drop test.. should b fun and hope this helps