Armory Sponsor
Posted: 7/31/2013 1:55:52 PM EDT
| hi need some good advice been reloading .223 69grn Sierra matchking first time load with this bullet head without the crimp grove put together dummy round correct COL using LYMAN 49 reloading manual set to COL of 2 259 iam using brand new .223 PPU brass New Dillon DIES chamber this round in new AR15 double check COL now .006 longer it appears when that AR15 BOLT slams shut on the round its acting like a kinetic puller now before i am advised to reduce diameter of expander ball on full length re sizer its carbide would Taper crimping solve the problem would the reloaded ammo still be accurate thanks to anyone you could advise. . |
| hi sorry lets try again when i reload .223 using ALL specs from the LYMAN 49 reloading manual for .223 rem i find the correct overall length increases by .006 thou when the round is chambered due to lack of case neck tension, my AR15 bolt carrier all most acts like a bullet puller my question to the forum is can a 69 grain BOAT TAIL FULL METAL JACKET without a crimp groove be taper crimped and still be accurate thanks. |
|
If your neck tension is correct, no crimp is needed. Measure your sizing ball. Bullet diameter is .224, so sizing ball should be .2215 to .222 for proper neck tension. Hope you can do the American to metric conversion. Welcome to the forum.  I do have a suggestion on your posting. If you double space after a complete sentence, your posts will be much easier to read. Easier to read will get more answers.
 |
|
Quoted: hi sizing ball came up at .223 guess these rounds would be ok in a bolt action think i will go with the Lee Factory Crimp die and lightly crimp the rounds before using them in the AR15 thanks for the help and advice. .223 is too large. Reread my previous post. (don't forget to double space between sentances) Chuck spindle in drill motor and use 400 grit wet/dry sandpaper to reduce the diameter of the sizing ball. Stop every seconds and remeasure the sizing ball. You can reduce the diameter, but you can't put material back on once it's removed. |
| OP, could your issue be a 'short' chamber? I am reloading the Sierra 69 BTHP with an OAL of 2.265 and a slight crimp. I am using RCBS small base dies and have not had any issues with bullets sticking in the lands. While taking a 'little' off the expander ball might help, it would be interesting to check out other possible issues. Have you check the OAL with a set up like the Stoney Point gage? What rifle are oyu loading for? |
|
hi Stoney point comparator shows 1.960 when checking from orgive checking same round for COL it comes up at 2.350 chamber appears ok.
Rifle is a German import to the United Kingdom company called Schmeisser gmbh they import in to the states using American Tactical Imports Inc. |
|
Quoted: hi Stoney point comparator shows 1.960 when checking from orgive checking same round for COL it comes up at 2.350 chamber appears ok. Rifle is a German import to the United Kingdom company called Schmeisser gmbh they import in to the states using American Tactical Imports Inc. Got another tip for you. Click on the Quote button when you are answering a post. If you use the Reply button like you are doing, we don't know who you are answering. |
|
Quoted:
Got another tip for you. Click on the Quote button when you are answering a post. If you use the Reply button like you are doing, we don't know who you are answering. Quoted:
Quoted:
hi Stoney point comparator shows 1.960 when checking from orgive checking same round for COL it comes up at 2.350 chamber appears ok. Rifle is a German import to the United Kingdom company called Schmeisser gmbh they import in to the states using American Tactical Imports Inc. Got another tip for you. Click on the Quote button when you are answering a post. If you use the Reply button like you are doing, we don't know who you are answering. |
|
Quoted:
hi Stoney point comparator shows 1.960 when checking from orgive checking same round for COL it comes up at 2.350 chamber appears ok. Rifle is a German import to the United Kingdom company called Schmeisser gmbh they import in to the states using American Tactical Imports Inc. I assume you meant 2.250. A good rule of thumb is to set bullet in neck back far enough so there is 1 caliber or more length engagement between the body or cylindrical portion of the bullet and the neck inside diameter. Your Schmeisser rig may be different, but ARs (5.56mm) came with relatively long free bore or leade (a compromise made by the designers to keep speed up on the military rounds without exceeding 62,000 psi chamber pressure). |
|
Quoted: thanks for tip Quoted: Quoted: Quoted: hi Stoney point comparator shows 1.960 when checking from orgive checking same round for COL it comes up at 2.350 chamber appears ok. Rifle is a German import to the United Kingdom company called Schmeisser gmbh they import in to the states using American Tactical Imports Inc. Got another tip for you. Click on the Quote button when you are answering a post. If you use the Reply button like you are doing, we don't know who you are answering. |
|
hi Used Lee Factory Crimp Die on new home loads that have neck tension issue as suggested by forum member
Test for group size at 100 yard range loads were 69 grain Matchking over IMR4895 and VIT N140 with different charge weights using starting loads going up by 1/2 grn steps to 1 grain from max using the Lyman 49 reloading manual. Groups good at 3/4" and tad under 1" the gun did seem to prefer IMR giving one group at a tad over 1/2".Spent the remaining rounds on Bullseye shooting these were giving V5 max score or a 5 (just off plum center). My rifle has 1 in 8 twist giving opportunities to explore loads using different weight bullet heads. Now have 60 fire formed cases maybe this could be a idea for new post full length resize or neck size? many thanks for all helpful tips from you and Forum members. 2 |
|
Full length resize for loads to be shot in a normal semi auto AR. Since you have a manual action, you might try a few cases neck sized. (Note OP is from GBR) After neck sizing, wipe off lube and see if cases will chamber. That will tell you how to proceed with your sizing. Glad you loads shot good.
|
Armory Sponsor