I've been practicing with the AR at distances between 3 yards and 100 for 3-gun competition. Most shots are occurring between 7 and 25 yards though.
Shooting at basic cardboard IPSC targets.
Last week, I did some training..about 200 rounds. Had one keyhole at about 10 yards. Hmmmmmm....
Today I shot another 250 rounds and had 4 rounds keyhole (two on image below, another two keyholes on another tgt). Targets were at about 10 and 15 yards.
Rifle is a home job lower and CMMG upper. Lower is on a Magpul CTR, MIAD, Giesselle trigger, ambi safety. Upper is a CMMG 16" MedCon (1-7"), mid length gas system, Larue 13.2 rail, PWS FC556 brake, and a TA31F on a Larue mount.
I'm using handloads...nothing precision, just mass produced stuff.
Mixed brass
FL sized in RCBS die
Trimmed on Giraud
Primer pockets swaged in Dillon tool
Loaded on Dillon 650
Win Small Rifle primers
22.2 H322
Wideners 62 FMJ (mil spec, lead core, no cannelure)
OAL is book length
My goal was to load to M855 specs so that the BDC in the ACOG would be usable...I can't seem to get to the velocity I need without popping primers but that's a separate issue now that bullets are hitting paper sideways. :banghead:
Take a look at the tgt.........what am I doing wrong?
Bullet weight matches twist rate, gun is cleaned on a regular basis, I'm stumped.
Shooting at basic cardboard IPSC targets.
Last week, I did some training..about 200 rounds. Had one keyhole at about 10 yards. Hmmmmmm....
Today I shot another 250 rounds and had 4 rounds keyhole (two on image below, another two keyholes on another tgt). Targets were at about 10 and 15 yards.
Rifle is a home job lower and CMMG upper. Lower is on a Magpul CTR, MIAD, Giesselle trigger, ambi safety. Upper is a CMMG 16" MedCon (1-7"), mid length gas system, Larue 13.2 rail, PWS FC556 brake, and a TA31F on a Larue mount.
I'm using handloads...nothing precision, just mass produced stuff.
Mixed brass
FL sized in RCBS die
Trimmed on Giraud
Primer pockets swaged in Dillon tool
Loaded on Dillon 650
Win Small Rifle primers
22.2 H322
Wideners 62 FMJ (mil spec, lead core, no cannelure)
OAL is book length
My goal was to load to M855 specs so that the BDC in the ACOG would be usable...I can't seem to get to the velocity I need without popping primers but that's a separate issue now that bullets are hitting paper sideways. :banghead:
Take a look at the tgt.........what am I doing wrong?
Bullet weight matches twist rate, gun is cleaned on a regular basis, I'm stumped.
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