Rtheurer said:
Thanks Robert... I was hoping you would hop in. I have no experience with the HAGAR and was hoping some one would help out on that part of the post. Can you give the OP a little info on the new 95gr Hunting Hybrid Classic in the HAGAR at Mag length as well.
RussT
Russ
The 6mm HAGAR is a rather long case (max chamber = 1.785", max case = 1.775", trim to length = 1.765"). One of the problems is finding good mag feed bullets that keep a full bearing surface at the mouth of the case when loaded at magazine length (for me that means 2.280" or less with the PRI 6.8 SPC magazines since I like to leave a little margin for error). The Berger 95gr Classic Hybrid Hunting bullet is one of the few magazine feed appropriate bullets that works well in the 6mm HAGAR application. It has a .427 G1 BC which is not bad at all. The nose length of the bullet is .505", which means if you take .505" + 1.775" = 2.275" (which is a good mag length for the HAGAR using the PRI 6.8 SPC magazines). When you load it a magazine length you have a good bit of bullet back in the case (akin to the Sierra 77's in at .223 case at magazine length), but those bullets also jump real well (even a long jump like there is in that application).
For me the best lineup of XTC bullets with the 6mm HAGAR is the Berger 95 Classic Hunting Hybrids for 200 and 300 yards and the Berger 105 gr. Hybrid bullet loaded long at 600 yards. You can substitute the Berger 80 gr bullets at 200 yards but to keep full bearing surface at the mouth of the case for magazine feed, you need to run the modified magazines (part of the front of the magazine cut out which allows them to be loaded around 2.340" OAL). The 80's have a nose length of .567", so with the formula of .567" + 1.775" = 2.342" (which is a good mag length with the modified magazines).
Let me say that I won't recommend any combination of mag feed loadings that would not meet having at least a SAAMI type situation (i.e. minimum bullet bearing diameter at the mouth of the case) because I feel that is potentially unsafe and I am not going there. If you look at a lot of SAAMI diagrams for 6mm's, you see the max bearing diameter of .2435" with a minus tolerance of .003", so for me, if you load it magazine length, and measure the bullet diameter at the mouth of the case, it better hit .2405" or it's a "no go" for me.
An example of a situation I consider unsafe (but yet I know people do it) is loading the Berger 90 gr BT bullets magazine length in unmodified magazines (i.e. 2.280"). The nose length on them is .623", so with the formula you have .623" + 1.775" = 2.398", which means if you load them at 2.280" OAL, there is .118" of the nose of the bullet down below the mouth of the case and there is very little of the bearing surface of the bullet supported by the neck brass which in a semi auto AR-15 is not an ideal situation (personally I feel it's a potential accident waiting to happen, and I would never sanction or recommend it, although I know people do it). I don't recommend that with modified magazines either since with that combination you still have .058" of the nose of the bullet down in the neck of the case.
The good news is there are some workable magazine feed bullets for the 6mm HAGAR (in addition to the Berger 95 gr Classic Hybrid Hunting/Match bullet) that do not need modified magazines to meet minimum bullet diameter at the mouth of the case when loaded. Some others are the Sierra 85 gr GameKing, the Hornady 87 gr. BTHP, the Hornady 75 gr. V-Max, and the Sierra 70 gr MatchKing. If you run with modified magazines where you can load at 2.340" OAL, you pick up a lot more bullets like the Nosler 70, 80, 90 & 95 gr ballistic tip bullets (all of these shoot very very well) the Hornady 87 gr V-Max bullet, and a number of other bullets.
Long post but I hope this helps.
Robert Whitley