Home Forums Hunting & Shooting Hunting Rifles Need some advice asap

Okay my dad recently bought a used temperature 700 bdl in a 7mm Remington magnum.he was curiouser as to if it was shot out or not so what I did was the old case method for.checking the lands I took a fired piece of brass sized enough to hold bullet and close it in the action I used a hornady ballistic tip I know the tip will have a variance since I don't have a bullet comparator yet but.figured it would get me really close the Lyman book oal is 3.290 and after I did the case I'm readying 3.317 to 3.325 what do you guys think she still got.some life??

Not a cartridge likely to get shot a whole lot. I'd look for other wear indicators on the gun.

It may be moot since he has the gun already. I say shoot it and see for yourself.

If I understand what you did, that method really doesn't tell you much - it could have been throated that long, and probably was, from the factory.

Load up some 150-160 Sierra over a book max dose of Re 22 and shoot it at 100 yards. Re 22 and 150-160 bullets shoots in many 7 RM.

Are you comparing coal with ogive length? The book oal is what the magazine constraint is. You need a baseline measurement to chase the lands.

So what I did didn't tell.me anything? I did it.with my 270 and the bullet almost falls out.of case and the gun won't hold a group figured it's burnt up I didn't measure from.the ogive I mensured oal as listed in lyman book tip of Bullethe to base of case

Try a flatbase seated bass-ackwards. That should give you an idea of where the throat ends.

Never did it myself, but Dave Scovill has written about it a time or two.

There's a gazillion things that might be responsible for poor groups. A proper cleaning to get rid of copper fouling might be a good place to start, assuming you've checked mechanical stuff like action and mount screws, and are sure the scope's okay.

So use a flat base to act as a ogive . What should I be readying on the mic to know if it's good or bad

Clean the barrel with Wipeout, make sure everything's tight and square and burn some powder in that rifle.

Clean the heck out of the bore. I bought a 7 mag that "wouldn't shoot". I spent about 2 hours cleaning the copper out and now, it shoots a solid inch or better with factory fodder.

Without knowing the length of the lead from the factory, measuring it now won't tell you anything about how much wear the barrel has. You need to have the bore scoped if you want to know its condition. But I'm with the guys who say to make sure the bore isn't full of copper, and then shoot some good loads through it, and see how it does.