Hello all. I was unfortunately fortunate enough to inherit multiple long range / bench rest guns along with reloading equipment etc. In the last 8 months I have familiarized myself with these guns, reloading equipment and long range shooting in general. My question involves two of the guns I have inherited. The first is a DPMS varmint heavy barrel upper in .223, Aero lower that I built with a Daniel Horner timney trigger, the scope is a leupold VX-III 8.5-25. I can put really solid groups together with this rifle. my best group being a 1.5 inch group at 220 yards. so far it has liked almost all the ammo that I have made and put through it. It is just a pleasure to shoot. It is also worth noting that this gun has a junky stock on it right now as i havnt had the time to buy and install a PRS lite which i plan for this gun. The second gun I inherited was a JP Enterprises LRP-07 in .308. This gun has a vortex razor HD 4.5-27 with a Calvin elite trigger that i installed. when I got the gun it had the factory roller trigger. I for the life of me cannot shoot this gun worth a crap with either trigger. I realize that this JP rife is many times better than my DPMS upper however I have trouble getting a 5 shot group to stay within an 8 inch target paper at 220. And even then the groups don't ever show much of a pattern that I could make zero adjustments off of. I have watched many videos about long distance shooting and believe I have an understanding of proper technique. I inherited other bolt guns in .308 and 22-250 which recoil similar if not more than the JP rifle and I shoot those fine. And the previous owner of this JP rifle could stack shots at 220 yards. I have tried many different loads through this rifle from 115 grain all the way up to 170 grain. Before I resort to paying for a professional lesson I was wondering if there is anything this group could offer to me that I might have missed. guns will be pictured, they are the top two. Thanks all for your time!
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New member seeking help JP LRP-07
- Thread starter Rmudd2203
- Start date
Whether or not you are familiar with shooting a large frame gasser, if you are getting 8” groups it might be wise to pull the scope and put it on a known entity to verify. Might have someone go through the rifle as well to verify. This all depends on how long ago the previous owner used it. If it was last used a week ago then yeah, maybe you have some issues. But if it’s been sitting up a long time I’d double check some stuff before I went looking for a class. 8” groups is hard to blame on a halfway decent shooter.
I don't think the amount of time is really the issue. I have rifles with scopes that were mounted more than a decade ago, and am confident that they will be "on" when I take them out of the safe.
Properly torqued screws and bolts aren't going to magically back out in a safe. But, we don't actually know what kind of goober the previous owner was. Maybe everything is mounted correctly. Maybe the mounting is a dumpster fire. You don't know unless you check.
Make sure the rings are properly tightened, if they are take the advise above and pull the scope and test on a known rifle. Any idea how many rounds have been through the JP?
To answer your question-no, I do not consider 1.5 yrs to be a long time, but I have had a very high end scope croak from spring fatigue after sitting up for about that long. It was on a sloped base, so it was cranked down more than the average scope and it failed, not 8” or anything but it did have to go back to the mother ship for service.
