matchking Posted June 30, 2011 Report Share Posted June 30, 2011 Hi guys,I have just sent my RPA to neil mckilop to have a .22.250 1-8" krieger fitted.What powder would you recomend for 75gr a max? At the moment i use h380 in my swift and the 22.250 AI but i am only using 52gr bullets.Do think it would be suitable for the 75gr a max? I also have a tub of H414 kicking around anybody use this? Thanks sean Link to comment Share on other sites More sharing options...
Vermincinerator Posted June 30, 2011 Report Share Posted June 30, 2011 Both H380 and H414 are too fast for 75grn bullets, i would be looking for powders in the same burning range as H4350 and H4831. Ian. Link to comment Share on other sites More sharing options...
sir-slots-alot Posted July 1, 2011 Report Share Posted July 1, 2011 Hi guys,I have just sent my RPA to neil mckilop to have a .22.250 1-8" krieger fitted.What powder would you recomend for 75gr a max? At the moment i use h380 in my swift and the 22.250 AI but i am only using 52gr bullets.Do think it would be suitable for the 75gr a max? I also have a tub of H414 kicking around anybody use this? Thanks sean Hi Sean H414 is fine with 75 grn Amax - 37.5 grns gave a healthy 3310 fps with good accuracy and little pressure signs. ( start at 36 grns and work up ) A 3 shot group whilst testing H414 Another good choice is IMR 4350 the powder I use. Cheers Alan Link to comment Share on other sites More sharing options...
sir-slots-alot Posted July 1, 2011 Report Share Posted July 1, 2011 Post duplicated ... Edited Link to comment Share on other sites More sharing options...
matchking Posted July 1, 2011 Author Report Share Posted July 1, 2011 Thanks for the replys gents.I think i will try H414 to start just because i have a tub already.It also goes through my harrel powder measure like water.Alan what twist barrel are you using?I had the choice of a 9 twist or a 8 twist and opted for the 8 i just hope i have made the right choice.How do you find the .22.250 with 75gr bullets?I have always had 1-14" barrels in the past and gone for the light and fast approach.I just hope the 8 twist will live up to expections. Cheers sean Link to comment Share on other sites More sharing options...
sir-slots-alot Posted July 2, 2011 Report Share Posted July 2, 2011 Alan what twist barrel are you using? I had the choice of a 9 twist or a 8 twist and opted for the 8 i just hope i have made the right choice. How do you find the .22.250 with 75gr bullets?. Cheers sean Hi Sean. I have a 9 twist on my 22.250. But I dont think you will have any problems with an 8 twist I have a feeling you will be more than impressed with the 75 grn A max. - Let us know how you get on. ATB Alan Link to comment Share on other sites More sharing options...
matchking Posted July 2, 2011 Author Report Share Posted July 2, 2011 Thanks guys.I will keep you imformed on how i get on.Alan what made you choose IMR4350 over H414?. Thanks sean Link to comment Share on other sites More sharing options...
sir-slots-alot Posted July 2, 2011 Report Share Posted July 2, 2011 Better case fill - slighly better velocity. I still have about 3 lb of H414 - I will be using it when I run out of IMR 4350. Cheers Alan Link to comment Share on other sites More sharing options...
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