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Post by doug136 on Sept 11, 2017 13:14:43 GMT -5
![]() I have been testing bullets with my Blackhorn loads for 3 days getting ready for a 500 yard match at Friendship this coming weekend . Bullets that I have tried . 270 Emax .015 Jacket 300 Match Hunter .028 jacket 275 Accumax .012 300 Accumax .021 300 Aeromax .021 All of my shooting this week was done at 500 yards with a Knight 500 and 120 grains of Blackhorn 209 . It is very hard to get a high BC bullet to stay stable much past 300 yards with my velocity at only 2250 fps . Well Kyle has done it ! At the last Kentucky Challenge I bought some 300 grain Aeromaxs to try out of my Hankins with smokless powder . Just for kicks i thought i would try them at 500 yards with my Knight 500 and Blackhorn. Well the results were amazing ! This was a once in a lifetime group although i did shoot group after group in the 3 to 5 inch range which im very happy with . One noticeable difference is that the 300 grain Aeromax shot almost 15 inches higher than any other bullet with the same 100 yard zero . Also had less wind drift. Its also difficult to get these thicker jacketed bullets to engage the rifling with the low pressures of Blackhorn . I thought i would share how im able to get this done in case someone was trying to devolope a low pressure load. I have to undersize the bullets considerably then Knurl the bullets back up oversized with rasp files then finally size size the bullets to the bore . I think im actually weakening the jacket also the knurls help grab the rifling. I just wanted to give Kyle credit for building a bullet that seems to do it all at a wide range of velocities . Cant wait to experiment with the .040 cal bullets . Keep up the good work . ![]()  |
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Post by Deleted on Sept 11, 2017 14:46:30 GMT -5
That's some fine shooting!!
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Post by dennis on Sept 11, 2017 14:53:02 GMT -5
Wow.
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Post by Kyle on Sept 11, 2017 17:08:56 GMT -5
Good Shooting Doug!!! As far as I'm concerned, Kudos go to all of my customers! I appreciate each and every one of you!!!
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Post by boonechaser on Sept 11, 2017 19:04:04 GMT -5
Wow, impressive shooting! Here I was all giddy about my 1.75" 300yd group with smokeless...
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Post by jims on Sept 11, 2017 19:11:07 GMT -5
Nice shooting
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Post by Richard on Sept 11, 2017 19:12:23 GMT -5
Doug............you got it together! I have also gotten good results when I oversize my bullets, then knurl between files and then size to fit. This method also allows for a bit of spring back since the "knurlies" have a little give or "squish" to them. Good luck in Friendship!
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Post by Hank on Sept 11, 2017 19:43:30 GMT -5
![]() I have been testing bullets with my Blackhorn loads for 3 days getting ready for a 500 yard match at Friendship this coming weekend . Bullets that I have tried . 270 Emax .015 Jacket 300 Match Hunter .028 jacket 275 Accumax .012 300 Accumax .021 300 Aeromax .021 All of my shooting this week was done at 500 yards with a Knight 500 and 120 grains of Blackhorn 209 . It is very hard to get a high BC bullet to stay stable much past 300 yards with my velocity at only 2250 fps . Well Kyle has done it ! At the last Kentucky Challenge I bought some 300 grain Aeromaxs to try out of my Hankins with smokless powder . Just for kicks i thought i would try them at 500 yards with my Knight 500 and Blackhorn. Well the results were amazing ! This was a once in a lifetime group although i did shoot group after group in the 3 to 5 inch range which im very happy with . One noticeable difference is that the 300 grain Aeromax shot almost 15 inches higher than any other bullet with the same 100 yard zero . Also had less wind drift. Its also difficult to get these thicker jacketed bullets to engage the rifling with the low pressures of Blackhorn . I thought i would share how im able to get this done in case someone was trying to devolope a low pressure load. I have to undersize the bullets considerably then Knurl the bullets back up oversized with rasp files then finally size size the bullets to the bore . I think im actually weakening the jacket also the knurls help grab the rifling. I just wanted to give Kyle credit for building a bullet that seems to do it all at a wide range of velocities . Cant wait to experiment with the .040 cal bullets . Keep up the good work . ![]() Thats some fine shooting. Now just re-peat it at friendship and you will have it won....................... |
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Post by markb317 on Sept 11, 2017 20:29:17 GMT -5
That is some great shooting Doug, good luck next weekend.
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Post by jimbob on Sept 11, 2017 20:35:07 GMT -5
That's awesome good luck at Friendship
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Post by buckdoehunter on Sept 12, 2017 8:33:06 GMT -5
Nice shooting!
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Post by doug136 on Sept 12, 2017 9:20:15 GMT -5
Thanks guys ,Im gonna try my best . I sure have worked hard developing loads and practising . Im kinda on fire right now . I shot again last night at 500 yards . Im still playing with my bullet sizing . I needed to be able to load the gun easier but still be tight as possible to help engage the rifling . I undersized my bullets even more then knurled oversized then ran bullets through my Hankins die to my bore size. This is basically two 2 shot groups. I shot one sighter then made a wind correction . The 2 shots on the upper left the bullets were sized tight . The two shots on the right were sized looser . Im shooting waaay above my head . Still center to center between my two 2 shot groups is less than 3.5 inches . Im done cleaned gun and loadeded it in the gun case ! Richard your right for hunting krurling bullets makes complete sense . Then you dont have to worry about spring back. Its a pain to do but i see no down side to knuling bullets . There is no accuracy loss and I think knurling bullets help to build pressure . My point of impact is actually higher with a knurled bullet compared to a bullet that is not knurled with the same seating pressure. I was afraid that a knurled bullet would not be as aerodynamic as a unknurled bullet . That does not seem to be the case.  |
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Post by schunter on Sept 12, 2017 11:55:22 GMT -5
Excellent shooting Doug. Some of my best blackhorn groups have been with the 250 FTX that were sized to small and knurled back up. Have not shot them past 300 yards. As you have stated I think the knurling is very helpful when shooting blackhorn.
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Post by doug136 on Sept 12, 2017 12:09:04 GMT -5
To be honest shunter I got the idea from you shooting the FTX Bullet . I remembered that post and thought I would give it a try . I couldn't see how you could get that bullet to shoot with Blackhorn . I figured knurling the bullet has to help the bullet engage the rifling some way . What amazes me is at 500 yards my velocity can only be around 1100 to 1200 fps . I would think I would have stability problems but that does not seem to be the case at all . All of my shooting the past few days have been in 5 plus mph wind . Kyle built one he'll of a bullet !
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Post by itneverends22 on Sept 12, 2017 12:57:52 GMT -5
absolutey awesome shooting!! good luck at friendship..
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Post by elkman1310 on Sept 13, 2017 16:46:04 GMT -5
Great results Doug. And I think your Knight has a pretty slow twist rate so your really doing well with that combo. I am surprised that you got those 300gr Aero to stabilize at that distance.
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Post by doug136 on Sept 13, 2017 18:31:17 GMT -5
Thanks Carl . I'm shooting way over my head right now . This gun has a 1-18 twist that really helps me . I have a Brux 1-17 I'm gonna have built to play with also . I think I may even be able to go down to 1-16 with my Blackhorn loads .
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Post by doug136 on Sept 13, 2017 18:35:28 GMT -5
I can tell the difference in rifle Torque between my 1-20 guns compared to my 1-18 twist guns .
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Post by elkman1310 on Sept 13, 2017 20:42:46 GMT -5
Yes you will feel a difference I even see a difference when I shot Blue Thunder which weighs almost 18lbs. A 325gr at 2950fps is going to have some torque. Same goes for you loads. I even noticed a difference when I went to a 1-7 twist 6mm barrel over a 1-8 . I didn't know Night used a 1-18 did you replace it?
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Post by doug136 on Sept 13, 2017 20:56:58 GMT -5
No I didn't rebarrel the gun. Its a Knight 500 . It Knights version of a target gun . It has a 1-18 twist full bull barrel . They also this year came out with a Mountaineer .45 with a 1-20 twist barrel . Both guns are pretty accurate for a manufactured gun .
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