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General >> Ammunition, reloading, shooting, etc >> .310 FMJBT bullets for larger bored rifles
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Message started by madsenshooter on Jan 9th, 2018 at 7:10pm

Title: Re: .310 FMJBT bullets for larger bored rifles
Post by madsenshooter on Feb 28th, 2018 at 5:18pm
I managed to get a little shooting time yesterday.  I had a variety of loads made up using the Hornady and Prvi 174gr FMJBTs.  The Hornady was outshooting the PRVI, but not by a lot.  The best of the day was 5 of the Hornady bullets over 48.4gr of RL19 that shot a 1.6"wx1.3"tall group.  50gr of H4831SC shot a slightly larger group with the group being about 4" lower than the RL19 loads and the boosted 860 loads impacted between the two.  With the Hornadys, I seated the bullets to the crimp groove and used the Lee factory crimp die.  PRVI bullets were seated to max magazine length and no crimp used.  I used the CCI #34 primer for all loads.  Though quite bulky, I've got good results with RL19.  An Alliant powder, it is made in Sweden.  I've got one of the lenses from my dad's glasses glued onto my sunglasses for shooting.  I still see the up and down double of the bull at 100yds though.  That's no longer a problem, just cover the bottom one with the front sight.  I'm waiting on my third pair of glasses from the VA.  I mention my vision problem cause I had a really tight group going using WC860, plus a bit of booster.  5gr of Blue Dot, 46.2gr of WC860.  The first three went into less than .5", but I lost the other two.  One went really low, like I picked the wrong one of the double bulls!  The other just slightly off the paper, about 3/4" out of the group of 3.  I'm going to get back to that load, use up the cheap 860.  It worked very good for some fire forming loads with 150gr FMJBTs.
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