08-23-2013, 04:14 PM
jurassic Wrote:I have a BHW barrel that has no problem with Hornady Ammo, but jams the AA 123 grn Lapua scenar load into the feed ramp cuts on the extension. I tried 2 different magazines, did not make a difference. Hornady functions fine, AA ammo does not.
The Lapua ammo looks much longer, when measured from the ogive (caliper zeroed with the adapter in place) the Hornady is 1.6770, the Lapua is 1.7115, .0345 difference. Is this the problem? I don't have any other ammo to try at the moment.
The AA ammo measures 2.2670 OAL.
There aren't enough BHW owners here to make many guesses, so that's probably why you haven't had many responses. However, I suspect the problem is actually your mags, because that little bit of extra length shouldn't have a big impact. However, if the mag is presenting the cartridge at a little flatter angle than it should, the longer bullet might jam into the feed ramp before it has tilted up enough to chamber correctly.
Will the 123 Scenars single feed? (put an empty mag in, and single feed through the ejection port.) If you are doing this at home, take the firing pin out of your bolt, because you will need to repeat it multiple times and there is NO SENSE in risking an accidental discharge. You can do it safely at the range with the barrel pointed down range.
You seek escape from pain. We seek the achievement of happiness. You exist for the sake of avoiding punishment. We exist for the sake of earning rewards. Threats will not make us function; fear is not our incentive. It is not death that we wish to avoid, but life that we wish to live. - John Galt